Changes for page LT-22222-L -- LoRa I/O Controller User Manual

Last modified by Mengting Qiu on 2025/06/04 18:42

From 101.1 to 101.2 From 162.1 to 163.1

From version 101.2

edited by Xiaoling
on 2022/10/13 16:38

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To version 162.1

edited by Dilisi S
on 2024/11/05 03:38

Change comment: edits from section 3.6.3

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Title

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--LT-22222-L LoRa IO Controller User Manual
++LT-22222-L -- LoRa IO Controller User Manual

Author

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--XWiki.Xiaoling
++XWiki.pradeeka

Content

@@ -3,6 +3,10 @@
++
++
++
++
  **Table of Contents:**
  {{toc/}}
@@ -15,35 +15,30 @@
  = 1.Introduction =
++== 1.1 What is the LT-22222-L I/O Controller? ==
--== 1.1 What is LT Series I/O Controller ==
--
  (((
--
++(((
++The Dragino (% style="color:blue" %)**LT-22222-L I/O Controller**(%%) is an advanced LoRaWAN device designed to provide seamless wireless long-range connectivity with various I/O options, including analog current and voltage inputs, digital inputs and outputs, and relay outputs.
--The Dragino (% style="color:blue" %)**LT series I/O Modules**(%%) are Long Range LoRaWAN I/O Controller. It contains different I/O Interfaces such as:** (% style="color:blue" %)analog current Input, analog voltage input(%%)**(% style="color:blue" %), **relay output**, **digital input**(%%) and (% style="color:blue" %)**digital output**(%%) etc. The LT I/O Modules are designed to simplify the installation of I/O monitoring.
++The LT-22222-L I/O Controller simplifies and enhances I/O monitoring and controlling. It is ideal for professional applications in wireless sensor networks, including irrigation systems, smart metering, smart cities, building automation, and more. These controllers are designed for easy, cost-effective deployment using LoRa wireless technology.
  )))
--
--(((
--The LT I/O Controllers allows the user to send data and reach extremely long ranges. It provides ultra-long range spread spectrum communication and high interference immunity whilst minimizing current consumption. It targets professional wireless sensor network applications such as irrigation systems, smart metering, smart cities, smartphone detection, building automation, and so on.
  )))
  (((
--The LT I/O Controllers is aiming to provide an (% style="color:blue" %)**easy and low cost installation** (%%)by using LoRa wireless technology.
++With the LT-22222-L I/O Controller, users can transmit data over ultra-long distances with low power consumption using LoRa, a spread-spectrum modulation technique derived from chirp spread spectrum (CSS) technology that operates on license-free ISM bands.
  )))
--(((
--The use environment includes:
--)))
++> The LT Series I/O Controllers are designed for easy, low-cost installation on LoRaWAN networks.
  (((
--1) If user's area has LoRaWAN service coverage, they can just install the I/O controller and configure it to connect the LoRaWAN provider via wireless.
--)))
++You can connect the LT-22222-L I/O Controller to a LoRaWAN network service provider in several ways:
--(((
--2) User can set up a LoRaWAN gateway locally and configure the controller to connect to the gateway via wireless.
++* If there is public LoRaWAN network coverage in the area where you plan to install the device (e.g., The Things Network), you can select a network and register the LT-22222-L I/O controller with it.
++* If there is no public LoRaWAN coverage in your area, you can set up a LoRaWAN gateway, or multiple gateways, and connect them to a LoRaWAN network server to create adequate coverage. Then, register the LT-22222-L I/O controller with this network.
++* Setup your own private LoRaWAN network.
--
++> You can use the Dragino LG308 gateway to expand or create LoRaWAN coverage in your area.
  )))
  (((
@@ -52,130 +52,49 @@
  )))
++== 1.2 Specifications ==
--== 1.2  Specifications ==
--
--(((
--
--
  (% style="color:#037691" %)**Hardware System:**
--)))
--* (((
--STM32L072CZT6 MCU
--)))
--* (((
--SX1276/78 Wireless Chip
--)))
--* (((
--(((
--Power Consumption:
--)))
++* STM32L072xxxx MCU
++* SX1276/78 Wireless Chip
++* Power Consumption:
++** Idle: 4mA@12v
++** 20dB Transmit: 34mA@12v
++* Operating Temperature: -40 ~~ 85 Degree, No Dew
--* (((
--Idle: 4mA@12v
--)))
--* (((
--20dB Transmit: 34mA@12v
--)))
--)))
--
--(((
--
--
  (% style="color:#037691" %)**Interface for Model: LT22222-L:**
--)))
--* (((
--2 x Digital dual direction Input (Detect High/Low signal, Max: 50v, or 220v with optional external resistor)
--)))
--* (((
--2 x Digital Output (NPN output. Max pull up voltage 36V,450mA)
--)))
--* (((
--2 x Relay Output (5A@250VAC / 30VDC)
--)))
--* (((
--2 x 0~~20mA Analog Input (res:0.01mA)
--)))
--* (((
--2 x 0~~30V Analog Input (res:0.01v)
--)))
--* (((
--Power Input 7~~ 24V DC.
--)))
++* 2 x Digital dual direction Input (Detect High/Low signal, Max: 50v, or 220v with optional external resistor)
++* 2 x Digital Output (NPN output. Max pull up voltage 36V,450mA)
++* 2 x Relay Output (5A@250VAC / 30VDC)
++* 2 x 0~~20mA Analog Input (res:0.01mA)
++* 2 x 0~~30V Analog Input (res:0.01v)
++* Power Input 7~~ 24V DC.
--(((
--
--
  (% style="color:#037691" %)**LoRa Spec:**
--)))
--* (((
--(((
--Frequency Range:
--)))
++* Frequency Range:
++** Band 1 (HF): 862 ~~ 1020 Mhz
++** Band 2 (LF): 410 ~~ 528 Mhz
++* 168 dB maximum link budget.
++* +20 dBm - 100 mW constant RF output vs.
++* +14 dBm high efficiency PA.
++* Programmable bit rate up to 300 kbps.
++* High sensitivity: down to -148 dBm.
++* Bullet-proof front end: IIP3 = -12.5 dBm.
++* Excellent blocking immunity.
++* Low RX current of 10.3 mA, 200 nA register retention.
++* Fully integrated synthesizer with a resolution of 61 Hz.
++* FSK, GFSK, MSK, GMSK, LoRaTM and OOK modulation.
++* Built-in bit synchronizer for clock recovery.
++* Preamble detection.
++* 127 dB Dynamic Range RSSI.
++* Automatic RF Sense and CAD with ultra-fast AFC.
++* Packet engine up to 256 bytes with CRC.
--* (((
--Band 1 (HF): 862 ~~ 1020 Mhz
--)))
--* (((
--Band 2 (LF): 410 ~~ 528 Mhz
--)))
--)))
--* (((
--168 dB maximum link budget.
--)))
--* (((
--+20 dBm - 100 mW constant RF output vs.
--)))
--* (((
--+14 dBm high efficiency PA.
--)))
--* (((
--Programmable bit rate up to 300 kbps.
--)))
--* (((
--High sensitivity: down to -148 dBm.
--)))
--* (((
--Bullet-proof front end: IIP3 = -12.5 dBm.
--)))
--* (((
--Excellent blocking immunity.
--)))
--* (((
--Low RX current of 10.3 mA, 200 nA register retention.
--)))
--* (((
--Fully integrated synthesizer with a resolution of 61 Hz.
--)))
--* (((
--FSK, GFSK, MSK, GMSK, LoRaTM and OOK modulation.
--)))
--* (((
--Built-in bit synchronizer for clock recovery.
--)))
--* (((
--Preamble detection.
--)))
--* (((
--127 dB Dynamic Range RSSI.
--)))
--* (((
--Automatic RF Sense and CAD with ultra-fast AFC.
--)))
--* (((
--Packet engine up to 256 bytes with CRC.
--
--
--
--
--)))
--
  == 1.3 Features ==
--
  * LoRaWAN Class A & Class C protocol
  * Optional Customized LoRa Protocol
  * Frequency Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915/RU864/IN865/MA869
@@ -184,11 +184,8 @@
  * Firmware upgradable via program port
  * Counting
++== 1.4 Applications ==
--
--== 1.4  Applications ==
--
--
  * Smart Buildings & Home Automation
  * Logistics and Supply Chain Management
  * Smart Metering
@@ -196,14 +196,15 @@
  * Smart Cities
  * Smart Factory
--
--
  == 1.5 Hardware Variants ==
--(% border="1" style="background-color:#f7faff; width:500px" %)
--|(% style="width:103px" %)**Model**|(% style="width:131px" %)**Photo**|(% style="width:334px" %)**Description**
--|(% style="width:103px" %)**LT22222-L**|(% style="width:131px" %)[[image:1653296302983-697.png]]|(% style="width:334px" %)(((
++(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:500px" %)
++|(% style="background-color:#4f81bd; color:white; width:103px" %)**Model**|(% style="background-color:#4f81bd; color:white; width:131px" %)**Photo**|(% style="background-color:#4f81bd; color:white; width:266px" %)**Description**
++|(% style="width:103px" %)**LT22222-L**|(% style="width:131px" %)(((
++(% style="text-align:center" %)
++[[image:image-20230424115112-1.png||height="106" width="58"]]
++)))|(% style="width:334px" %)(((
  * 2 x Digital Input (Bi-direction)
  * 2 x Digital Output
  * 2 x Relay Output (5A@250VAC / 30VDC)
@@ -212,131 +212,193 @@
  * 1 x Counting Port
  )))
++= 2. Assembling the Device =
++== 2.1 What is included in the package? ==
--= 2. Power ON Device =
++The package includes the following items:
++* 1 x LT-22222-L I/O Controller
++* 1 x LoRaWAN antenna matched to the frequency of the LT-22222-L
++* 1 x bracket for wall mounting
++* 1 x programming cable
--The LT controller can be powered by 7 ~~ 24V DC power source. Connect VIN to Power Input V+ and GND to power input V- to power the LT controller.
++Attach the LoRaWAN antenna to the connector labeled **ANT** (located on the top right side of the device, next to the upper terminal block). Secure the antenna by tightening it clockwise.
--(((
--PWR will on when device is properly powered.
++== 2.2 Terminals ==
--
--)))
++Upper screw terminal block (from left to right):
--[[image:1653297104069-180.png]]
++(% style="width:634px" %)
++|=(% style="width: 295px;" %)Terminal|=(% style="width: 338px;" %)Function
++|(% style="width:295px" %)GND|(% style="width:338px" %)Ground
++|(% style="width:295px" %)VIN|(% style="width:338px" %)Input Voltage
++|(% style="width:295px" %)AVI2|(% style="width:338px" %)Analog Voltage Input Terminal 2
++|(% style="width:295px" %)AVI1|(% style="width:338px" %)Analog Voltage Input Terminal 1
++|(% style="width:295px" %)ACI2|(% style="width:338px" %)Analog Current Input Terminal 2
++|(% style="width:295px" %)ACI1|(% style="width:338px" %)Analog Current Input Terminal 1
++Lower screw terminal block (from left to right):
++(% style="width:633px" %)
++|=(% style="width: 296px;" %)Terminal|=(% style="width: 334px;" %)Function
++|(% style="width:296px" %)RO1-2|(% style="width:334px" %)Relay Output 1
++|(% style="width:296px" %)RO1-1|(% style="width:334px" %)Relay Output 1
++|(% style="width:296px" %)RO2-2|(% style="width:334px" %)Relay Output 2
++|(% style="width:296px" %)RO2-1|(% style="width:334px" %)Relay Output 2
++|(% style="width:296px" %)DI2+|(% style="width:334px" %)Digital Input 2
++|(% style="width:296px" %)DI2-|(% style="width:334px" %)Digital Input 2
++|(% style="width:296px" %)DI1+|(% style="width:334px" %)Digital Input 1
++|(% style="width:296px" %)DI1-|(% style="width:334px" %)Digital Input 1
++|(% style="width:296px" %)DO2|(% style="width:334px" %)Digital Output 2
++|(% style="width:296px" %)DO1|(% style="width:334px" %)Digital Output 1
--= 3. Operation Mode =
++== 2.3 Powering ==
++The LT-22222-L I/O Controller can be powered by a 7–24V DC power source. Connect the power supply’s positive wire to the VIN screw terminal and the negative wire to the GND screw terminal. The power indicator (PWR) LED will turn on when the device is properly powered.
--== 3.1 How it works? ==
++[[image:1653297104069-180.png]]
--(((
--The LT is configured as LoRaWAN OTAA Class C mode by default. It has OTAA keys to join network. To connect a local LoRaWAN network, user just need to input the OTAA keys in the network server and power on the LT. It will auto join the network via OTAA. For LT-22222-L, the LED will show the Join status: After power on (% style="color:green" %)**TX LED**(%%) will fast blink 5 times, LT-22222-L will enter working mode and start to JOIN LoRaWAN network. (% style="color:green" %)**TX LED**(%%) will be on for 5 seconds after joined in network. When there is message from server, the RX LED will be on for 1 second.
--)))
--(((
--In case user can't set the OTAA keys in the network server and has to use the existing keys from server. User can [[use AT Command>>||anchor="H4.UseATCommand"]] to set the keys in the devices.
--)))
++= 3. Operation Mode =
++== 3.1 How does it work? ==
++The LT-22222-L is configured to operate in LoRaWAN Class C mode by default. It supports OTAA (Over-the-Air Activation), which is the most secure method for activating a device with a LoRaWAN network server. The LT-22222-L comes with device registration information that allows you to register it with a LoRaWAN network, enabling the device to perform OTAA activation with the network server upon initial power-up and after any subsequent reboots.
--== 3.2 Example to join LoRaWAN network ==
++For LT-22222-L, the LED will show the Join status: After power on (% style="color:green" %)**TX LED**(%%) will fast blink 5 times, LT-22222-L will enter working mode and start to JOIN LoRaWAN network. (% style="color:green" %)**TX LED**(%%) will be on for 5 seconds after joined in network. When there is message from server, the RX LED will be on for 1 second.
++In case you can't set the root key and other identifiers in the network server and must use them from the server, you can use [[AT Commands>>||anchor="H4.UseATCommand"]] to configure them on the device.
--(((
--This chapter shows an example for how to join the TTN LoRaWAN Network. Below is the network structure, we use our LG308 as LoRaWAN gateway here.
++== 3.2 Registering with a LoRaWAN network server ==
--
--)))
++The diagram below shows how the LT-22222-L connects to a typical LoRaWAN network.
  [[image:image-20220523172350-1.png||height="266" width="864"]]
++=== 3.2.1 Prerequisites ===
--(((
--The LG308 is already set to connect to [[TTN network >>url:https://www.thethingsnetwork.org/]]. So what we need to do now is only configure register this device to TTN:
++Make sure you have the device registration information such as DevEUI, AppEUI, and AppKey with you. The registration information can be found on a sticker that can be found inside the package. Please keep the **registration information** sticker in a safe place for future reference.
--
--)))
++[[image:image-20230425173427-2.png||height="246" width="530"]]
--(((
--(% style="color:blue" %)**Step 1**(%%): Create a device in TTN with the OTAA keys from LT IO controller.
--)))
++The following subsections explain how to register the LT-22222-L with different LoRaWAN network server providers.
--(((
--Each LT is shipped with a sticker with the default device EUI as below:
--)))
++=== 3.2.2 The Things Stack Sandbox (TTSS) ===
--[[image:1653297924498-393.png]]
++* Log in to your [[The Things Stack Sandbox>>https://eu1.cloud.thethings.network]] account.
++* Create an application if you do not have one yet.
++* Register LT-22222-L with that application. Two registration options available:
++==== Using the LoRaWAN Device Repository: ====
--Input these keys in the LoRaWAN Server portal. Below is TTN screen shot:
++* Go to your application and click on the **Register end device** button.
++* On the **Register end device** page:
++** Select the option **Select the end device in the LoRaWAN Device Repository**.
++** Choose the **End device brand**, **Model**, **Hardware version**, **Firmware version**, and **Profile (Region)**.
++** Select the **Frequency plan** that matches with your device.
--Add APP EUI in the application.
++[[image:lt-22222-l-dev-repo-reg-p1.png||height="625" width="1000"]]
--[[image:1653297955910-247.png||height="321" width="716"]]
++*
++** Enter the **AppEUI** in the **JoinEUI** field and click **Confirm** button.
++** Enter the **DevEUI** in the **DevEUI** field.
++** Enter the **AppKey** in the **AppKey** field.
++** In the **End device ID** field, enter a unique name within this application for your LT-22222-N.
++** Under **After registration**, select the **View registered end device** option.
++[[image:lt-22222-l-dev-repo-reg-p2.png||height="625" width="1000"]]
--Add APP KEY and DEV EUI
++==== Entering device information manually: ====
--[[image:1653298023685-319.png]]
++* On the **Register end device** page:
++** Select the **Enter end device specifies manually** option as the input method.
++** Select the **Frequency plan** that matches with your device.
++** Select the **LoRaWAN version**.
++** Select the **Regional Parameters version**.
++** Click **Show advanced activation, LoRaWAN class and cluster settings** link to expand the section.
++** Select **Over the air activation (OTAA)** option under **Activation mode**
++** Select **Class C (Continuous)** from the **Additional LoRaWAN class capabilities**.
++[[image:lt-22222-l-manually-p1.png||height="625" width="1000"]]
--(((
--(% style="color:blue" %)**Step 2**(%%): Power on LT and it will auto join to the TTN network. After join success, it will start to upload message to TTN and user can see in the panel.
--)))
++* Enter **AppEUI** in the **JoinEUI** field and click **Confirm** button.
++* Enter **DevEUI** in the **DevEUI** field.
++* Enter **AppKey** in the **AppKey** field.
++* In the **End device ID** field, enter a unique name within this application for your LT-22222-N.
++* Under **After registration**, select the **View registered end device** option.
++[[image:lt-22222-l-manually-p2.png||height="625" width="1000"]]
++
++
++==== Joining ====
++
++Click on **Live Data** in the left navigation. Then, power on the device, and it will join The Things Stack Sandbox. You can see the join request, join accept, followed by uplink messages form the device showing in the Live Data panel.
++
  [[image:1653298044601-602.png||height="405" width="709"]]
++== 3.3 Uplink Payload formats ==
--== 3.3 Uplink Payload ==
++The LT-22222-L has 5 working modes. It also has an interrupt/trigger mode for different type applications that can be used together with all the working modes as an additional feature. The default mode is MOD1 and you can switch between these modes using AT commands.
--There are five working modes + one interrupt mode on LT for different type application:
++* (% style="color:blue" %)**MOD1**(%%): (default mode/factory set): 2 x ACI + 2AVI + DI + DO + RO
--* (% style="color:blue" %)**MOD1**(%%): (default setting): 2 x ACI + 2AVI + DI + DO + RO
  * (% style="color:blue" %)**MOD2**(%%): Double DI Counting + DO + RO
++
  * (% style="color:blue" %)**MOD3**(%%): Single DI Counting + 2 x ACI + DO + RO
++
  * (% style="color:blue" %)**MOD4**(%%): Single DI Counting + 1 x Voltage Counting + DO + RO
++
  * (% style="color:blue" %)**MOD5**(%%): Single DI Counting + 2 x AVI + 1 x ACI + DO + RO
++
  * (% style="color:blue" %)**ADDMOD6**(%%): Trigger Mode, Optional, used together with MOD1 ~~ MOD5
--
--
  === 3.3.1 AT+MOD~=1, 2ACI+2AVI ===
--The uplink payload includes totally 9 bytes. Uplink packets use FPORT=2 and every 10 minutes send one uplink by default.
++(((
++The uplink payload is 11 bytes long. Uplink packets are sent over LoRaWAN FPort=2. By default, one uplink is sent every 10 minutes. (% style="display:none" %)
--[[image:image-20220523174024-3.png]]
++(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
++|(% style="background-color:#4f81bd; color:white" %)**Size(bytes)**|(% style="background-color:#4f81bd; color:white" %)**2**|(% style="background-color:#4f81bd; color:white" %)**2**|(% style="background-color:#4f81bd; color:white" %)**2**|(% style="background-color:#4f81bd; color:white" %)**2**|(% style="background-color:#4f81bd; color:white" %)**1**|(% style="background-color:#4f81bd; color:white" %)**1**|(% style="background-color:#4f81bd; color:white" %)**1**
++|Value|(((
++AVI1 voltage
++)))|(((
++AVI2 voltage
++)))|(((
++ACI1 Current
++)))|(((
++ACI2 Current
++)))|DIDORO*|(((
++Reserve
++)))|MOD
++)))
  (((
--
++(% style="color:#4f81bd" %)*** DIDORO**(%%) is a combination for RO1, RO2, DI3, DI2, DI1, DO3, DO2 and DO1, for a total of 1 byte, as shown below.
--(% style="color:#4f81bd" %)**DIDORO**(%%) is a combination for RO1, RO2, DI3, DI2, DI1, DO3, DO2 and DO1. Totally 1bytes as below
++(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
++|**bit 7**|**bit 6**|**bit 5**|**bit 4**|**bit 3**|**bit 2**|**bit 1**|**bit 0**
++|RO1|RO2|--DI3--|DI2|DI1|--DO3--|DO2|DO1
  )))
--[[image:image-20220523174254-4.png]]
++* RO is for relay. ROx=1 : closed, ROx=0 always open.
++* DI is for digital input. DIx=1: high or floating, DIx=0: low.
++* DO is for reverse digital output. DOx=1: output low, DOx=0: high or floating.
--* RO is for relay. ROx=1 : close，ROx=0 always open.
--* DI is for digital input. DIx=1: high or float, DIx=0: low.
--* DO is for reverse digital output. DOx=1: output low, DOx=0: high or float.
++(% style="color:red" %)**Note: DI3 and DO3 bits are not valid for LT-22222-L**
--(% style="color:red" %)**Note: DI3 and DO3 bit are not valid for LT-22222-L**
++For example, if the payload is: [[image:image-20220523175847-2.png]]
--For example if payload is: [[image:image-20220523175847-2.png]]
++**The interface values can be calculated as follows:  **
--**The value for the interface is:  **
++AVI1 channel voltage is 0x04AB/1000=1195(DEC)/1000=1.195V
--AVI1 channel voltage is 0x04AB/1000=1195（DEC）/1000=1.195V
--
  AVI2 channel voltage is 0x04AC/1000=1.196V
  ACI1 channel current is 0x1310/1000=4.880mA
@@ -343,64 +343,69 @@
  ACI2 channel current is 0x1300/1000=4.864mA
--The last byte 0xAA= 10101010(B) means
++The last byte 0xAA= 10101010(b) means,
--* [1] RO1 relay channel is close and the RO1 LED is ON.
--* [0] RO2 relay channel is open and RO2 LED is OFF;
--
--
--
--**LT22222-L:**
--
--* [1] DI2 channel is high input and DI2 LED is ON;
--* [0] DI1 channel is low input;
--
--* [0] DO3 channel output state
--** DO3 is float in case no load between DO3 and V+.;
++* [1] RO1 relay channel is closed, and the RO1 LED is ON.
++* [0] RO2 relay channel is open, and RO2 LED is OFF.
++* [1] DI3 - not used for LT-22222-L.
++* [0] DI2 channel input is low, and the DI2 LED is OFF.
++* [1] DI1 channel input state:
++** DI1 is floating when there is no load between DI1 and V+.
++** DI1 is high when there is load between DI1 and V+.
++** DI1 LED is ON in both cases.
++* [0] DO3 channel output state:
++** DO3 is float in case no load between DO3 and V+.
  ** DO3 is high in case there is load between DO3 and V+.
--** DO3 LED is off in both case
--* [1] DO2 channel output is low and DO2 LED is ON.
--* [0] DO1 channel output state
--** DO1 is float in case no load between DO1 and V+.;
--** DO1 is high in case there is load between DO1 and V+.
--** DO1 LED is off in both case
++** DO3 LED is OFF in both case
++* [1] DO2 channel output is low, and the DO2 LED is ON.
++* [0] DO1 channel output state:
++** DO1 is floating when there is no load between DO1 and V+.
++** DO1 is high when there is load between DO1 and V+.
++** DO1 LED is OFF in both case.
--
  === 3.3.2 AT+MOD~=2, (Double DI Counting) ===
--**For LT-22222-L**: this mode the **DI1 and DI2** are used as counting pins.
--
  (((
--Total : 11 bytes payload
++**For LT-22222-L**: In this mode, the **DI1 and DI2** are used as counting pins.
  )))
--[[image:image-20220523180452-3.png]]
++(((
++The uplink payload is 11 bytes long.
++(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
++|(% style="background-color:#4f81bd; color:white" %)**Size(bytes)**|(% style="background-color:#4f81bd; color:white" %)**4**|(% style="background-color:#4f81bd; color:white" %)**4**|(% style="background-color:#4f81bd; color:white" %)**1**|(% style="background-color:#4f81bd; color:white" %)**1**|(% style="background-color:#4f81bd; color:white" %)**1**
++|Value|COUNT1|COUNT2 |DIDORO*|(((
++Reserve
++)))|MOD
++)))
  (((
--(% style="color:#4f81bd" %)**DIDORO**(%%) is a combination for RO1, RO2, DO3, DO2 and DO1. Totally 1bytes as below
--)))
++(% style="color:#4f81bd" %)***DIDORO**(%%) is a combination for RO1, RO2, DO3, DO2 and DO1, for a total of 1 byte, as shown below.
--[[image:image-20220523180506-4.png]]
++(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
++|**bit 7**|**bit 6**|**bit 5**|**bit 4**|**bit 3**|**bit 2**|**bit 1**|**bit 0**
++|RO1|RO2|FIRST|Reserve|Reserve|--DO3--|DO2|DO1
--* RO is for relay. ROx=1 : close，ROx=0 always open.
--* FIRST: Indicate this is the first packet after join network.
--* DO is for reverse digital output. DOx=1: output low, DOx=0: high or float.
--
--(((
--(% style="color:red" %)**Note: DO3 bit is not valid for LT-22222-L.**
++* RO is for relay. ROx=1 : closed,  ROx=0 always open.
  )))
++* FIRST: Indicates that this is the first packet after joining the network.
++* DO is for reverse digital output. DOx=1: output low, DOx=0: high or floating.
++
  (((
++(% style="color:red" %)**Note: DO3 bit is not valid for LT-22222-L**
++
++)))
--**To use counting mode, please run:**
++(((
++**To activate this mode, please run the following AT command:**
  )))
++(((
  (% class="box infomessage" %)
  (((
--(((
  **AT+MOD=2**
  **ATZ**
@@ -411,48 +411,50 @@
  (% style="color:#4f81bd" %)**AT Commands for counting:**
--
--
  )))
  (((
  **For LT22222-L:**
++(% style="color:blue" %)**AT+TRIG1=0,100**(%%)**    (set the DI1 port to trigger on a low level, the valid signal duration is 100ms) **
--(% style="color:blue" %)**AT+TRIG1=0,100**(%%)**    (set DI1 port to trigger on low level, valid signal is 100ms) **
++(% style="color:blue" %)**AT+TRIG1=1,100**(%%)**    (set the DI1 port to trigger on a high level, the valid signal duration is 100ms) **
--(% style="color:blue" %)**AT+TRIG1=1,100**(%%)**    (set DI1 port to trigger on high level, valid signal is 100ms ) **
++(% style="color:blue" %)**AT+TRIG2=0,100**(%%)**    (set the DI2 port to trigger on a low level, the valid signal duration is 100ms) **
--(% style="color:blue" %)**AT+TRIG2=0,100**(%%)**    (set DI2 port to trigger on low level, valid signal is 100ms) **
++(% style="color:blue" %)**AT+TRIG2=1,100**(%%)**    (set the DI2 port to trigger on a high level, the valid signal duration is 100ms) **
--(% style="color:blue" %)**AT+TRIG2=1,100**(%%)**    (set DI2 port to trigger on high level, valid signal is 100ms ) **
++(% style="color:blue" %)**AT+SETCNT=1,60**(%%)**   (Set the COUNT1 value to 60)**
--(% style="color:blue" %)**AT+SETCNT=1,60**(%%)**   (Set COUNT1 value to 60)**
--
--(% style="color:blue" %)**AT+SETCNT=2,60**(%%)**   (Set COUNT2 value to 60)**
++(% style="color:blue" %)**AT+SETCNT=2,60**(%%)**   (Set the COUNT2 value to 60)**
  )))
--
  === 3.3.3 AT+MOD~=3, Single DI Counting + 2 x ACI ===
--**LT22222-L**: This mode the DI1 is used as a counting pin.
++**LT22222-L**: In this mode, the DI1 is used as a counting pin.
--[[image:image-20220523181246-5.png]]
++(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
++|(% style="background-color:#4f81bd; color:white" %)**Size(bytes)**|(% style="background-color:#4f81bd; color:white" %)**4**|(% style="background-color:#4f81bd; color:white" %)**2**|(% style="background-color:#4f81bd; color:white" %)**2**|(% style="background-color:#4f81bd; color:white" %)**1**|(% style="background-color:#4f81bd; color:white" %)**1**|(% style="background-color:#4f81bd; color:white" %)**1**
++|Value|COUNT1|(((
++ACI1 Current
++)))|(((
++ACI2 Current
++)))|DIDORO*|Reserve|MOD
  (((
--
++(% style="color:#4f81bd" %)***DIDORO**(%%) is a combination for RO1, RO2, DI3, DI2, DI1, DO3, DO2 and DO1, for a total of 1 byte, as shown below.
--(% style="color:#4f81bd" %)**DIDORO**(%%) is a combination for RO1, RO2, DI3, DI2, DI1, DO3, DO2 and DO1. Totally 1bytes as below
++(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
++|**bit 7**|**bit 6**|**bit 5**|**bit 4**|**bit 3**|**bit 2**|**bit 1**|**bit 0**
++|RO1|RO2|FIRST|Reserve|Reserve|--DO3--|DO2|DO1
  )))
--[[image:image-20220523181301-6.png]]
++* RO is for relay. ROx=1 : closed, ROx=0 always open.
++* FIRST: Indicates that this is the first packet after joining the network.
++* DO is for reverse digital output. DOx=1: output low, DOx=0: high or floating.
--* RO is for relay. ROx=1 : close，ROx=0 always open.
--* FIRST: Indicate this is the first packet after join network.
--* DO is for reverse digital output. DOx=1: output low, DOx=0: high or float.
--
  (((
  (% style="color:red" %)**Note: DO3 is not valid for LT-22222-L.**
  )))
@@ -459,12 +459,12 @@
  (((
--**To use counting mode, please run:**
++**To activate this mode, please run the following AT command:**
  )))
++(((
  (% class="box infomessage" %)
  (((
--(((
  **AT+MOD=3**
  **ATZ**
@@ -472,44 +472,54 @@
  )))
  (((
--Other AT Commands for counting are similar to [[MOD2 Counting Command>>||anchor="H3.3.2AT2BMOD3D22C28DoubleDICounting29"]].
++AT Commands for counting:
++
++The AT Commands for counting are similar to [[MOD2 Counting Command>>||anchor="H3.3.2AT2BMOD3D22C28DoubleDICounting29"]]. Use only the commands that match 'DI'.
  )))
--
  === 3.3.4 AT+MOD~=4, Single DI Counting + 1 x Voltage Counting ===
--**LT22222-L**: This mode the DI1 is used as a counting pin.
++(((
++**LT22222-L**: In this mode, the DI1 is used as a counting pin.
++)))
--The AVI1 is also used for counting. AVI1 is used to monitor the voltage. It will check the voltage **every 60s**, if voltage is higher or lower than VOLMAX mV, the AVI1 Counting increase 1, so AVI1 counting can be used to measure a machine working hour.
++(((
++The AVI1 is also used for counting. It monitors the voltage and checks it every **60 seconds**. If the voltage is higher or lower than VOLMAX mV, the AVI1 count increases by 1, allowing AVI1 counting to be used to measure a machine's working hours.
--[[image:image-20220523181903-8.png]]
++(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
++|(% style="background-color:#4f81bd; color:white" %)**Size(bytes)**|(% style="background-color:#4f81bd; color:white" %)**4**|(% style="background-color:#4f81bd; color:white" %)**4**|(% style="background-color:#4f81bd; color:white" %)**1**|(% style="background-color:#4f81bd; color:white" %)**1**|(% style="background-color:#4f81bd; color:white" %)**1**
++|Value|COUNT1|AVI1 Counting|DIDORO*|(((
++Reserve
++)))|MOD
++)))
--
  (((
--(% style="color:#4f81bd" %)**DIDORO **(%%)is a combination for RO1, RO2, DI3, DI2, DI1, DO3, DO2 and DO1. Totally 1bytes as below
++(% style="color:#4f81bd" %)**DIDORO **(%%)is a combination for RO1, RO2, DI3, DI2, DI1, DO3, DO2 and DO1, for a total of 1 byte, as shown below.
++
++(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
++|**bit 7**|**bit 6**|**bit 5**|**bit 4**|**bit 3**|**bit 2**|**bit 1**|**bit 0**
++|RO1|RO2|FIRST|Reserve|Reserve|--DO3--|DO2|DO1
  )))
--[[image:image-20220523181727-7.png]]
++* RO is for relay. ROx=1 : closed, ROx=0 always open.
++* FIRST: Indicates that this is the first packet after joining the network.
++* DO is for reverse digital output. DOx=1: output low, DOx=0: high or floating.
--* RO is for relay. ROx=1 : close，ROx=0 always open.
--* FIRST: Indicate this is the first packet after join network.
--* DO is for reverse digital output. DOx=1: output low, DOx=0: high or float.
--
  (((
  (% style="color:red" %)**Note: DO3 is not valid for LT-22222-L.**
--)))
--(((
++)))
--**To use this mode, please run:**
++(((
++**To activate this mode, please run the following AT command:**
  )))
++(((
  (% class="box infomessage" %)
  (((
--(((
  **AT+MOD=4**
  **ATZ**
@@ -516,20 +516,15 @@
  )))
  )))
--
--
  (((
  Other AT Commands for counting are similar to [[MOD2 Counting Command>>||anchor="H3.3.2AT2BMOD3D22C28DoubleDICounting29"]].
  )))
  (((
--
++**In addition to that,  below are the commands for AVI1 Counting:**
--**Plus below command for AVI1 Counting:**
++(% style="color:blue" %)**AT+SETCNT=3,60**(%%)**           (set AVI Count to 60)**
--
--(% style="color:blue" %)**AT+SETCNT=3,60**(%%)**            (set AVI Count to 60)**
--
  (% style="color:blue" %)**AT+VOLMAX=20000**(%%)**       (If AVI1 voltage higher than VOLMAX (20000mV =20v), counter increase 1)**
  (% style="color:blue" %)**AT+VOLMAX=20000,0**(%%)**    (If AVI1 voltage lower than VOLMAX (20000mV =20v), counter increase 1)**
@@ -538,21 +538,32 @@
  )))
--
  === 3.3.5 AT+MOD~=5, Single DI Counting + 2 x AVI + 1 x ACI ===
  **LT22222-L**: This mode the DI1 is used as a counting pin.
--[[image:image-20220523182334-9.png]]
++(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
++|(% style="background-color:#4f81bd; color:white" %)**Size(bytes)**|(% style="background-color:#4f81bd; color:white" %)**2**|(% style="background-color:#4f81bd; color:white" %)**2**|(% style="background-color:#4f81bd; color:white" %)**2**|(% style="background-color:#4f81bd; color:white" %)**2**|(% style="background-color:#4f81bd; color:white" %)**1**|(% style="background-color:#4f81bd; color:white" %)**1**|(% style="background-color:#4f81bd; color:white" %)**1**
++|Value|(((
++AVI1 voltage
++)))|(((
++AVI2 voltage
++)))|(((
++ACI1 Current
++)))|COUNT1|DIDORO*|(((
++Reserve
++)))|MOD
  (((
--
--
  (% style="color:#4f81bd" %)**DIDORO**(%%) is a combination for RO1, RO2, DI3, DI2, DI1, DO3, DO2 and DO1. Totally 1bytes as below
++
++(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
++|**bit7**|**bit6**|**bit5**|**bit4**|**bit3**|**bit2**|**bit1**|**bit0**
++|RO1|RO2|FIRST|Reserve|Reserve|DO3|DO2|DO1
  )))
--* RO is for relay. ROx=1 : close，ROx=0 always open.
++* RO is for relay. ROx=1 : close, ROx=0 always open.
  * FIRST: Indicate this is the first packet after join network.
  * (((
  DO is for reverse digital output. DOx=1: output low, DOx=0: high or float.
@@ -563,14 +563,12 @@
  )))
  (((
--
--
  **To use this mode, please run:**
  )))
++(((
  (% class="box infomessage" %)
  (((
--(((
  **AT+MOD=5**
  **ATZ**
@@ -582,7 +582,6 @@
  )))
--
  === 3.3.6 AT+ADDMOD~=6. (Trigger Mode, Optional) ===
@@ -637,7 +637,6 @@
  AT+ DTRI =1,0   (Enable DI1 trigger / disable DI2 trigger)
--
  (% style="color:#037691" %)**Downlink Command to set Trigger Condition:**
  Type Code: 0xAA. Downlink command same as AT Command **AT+AVLIM, AT+ACLIM**
@@ -672,12 +672,39 @@
  MOD6 Payload : total 11 bytes payload
--[[image:image-20220524085923-1.png]]
++(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:515px" %)
++|(% style="background-color:#4f81bd; color:white; width:60px" %)**Size(bytes)**|(% style="background-color:#4f81bd; color:white; width:69px" %)**1**|(% style="background-color:#4f81bd; color:white; width:69px" %)**1**|(% style="background-color:#4f81bd; color:white; width:109px" %)**1**|(% style="background-color:#4f81bd; color:white; width:49px" %)**6**|(% style="background-color:#4f81bd; color:white; width:109px" %)**1**|(% style="background-color:#4f81bd; color:white; width:50px" %)**1**
++|Value|(((
++TRI_A FLAG
++)))|(((
++TRI_A Status
++)))|(((
++TRI_DI FLAG+STA
++)))|Reserve|Enable/Disable MOD6|(((
++MOD(6)
++)))
--
  (% style="color:#4f81bd" %)**TRI FLAG1**(%%) is a combination to show if trigger is set for this part. Totally 1byte as below
--[[image:image-20220524090106-2.png]]
++(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:515px" %)
++|**bit7**|**bit6**|**bit5**|**bit4**|**bit3**|**bit2**|**bit1**|**bit0**
++|(((
++AV1_LOW
++)))|(((
++AV1_HIGH
++)))|(((
++AV2_LOW
++)))|(((
++AV2_HIGH
++)))|(((
++AC1_LOW
++)))|(((
++AC1_HIGH
++)))|(((
++AC2_LOW
++)))|(((
++AC2_HIGH
++)))
  * Each bits shows if the corresponding trigger has been configured.
@@ -686,10 +686,27 @@
  10100000: Means the system has configure to use the trigger: AC1_LOW and AV2_LOW
--
  (% style="color:#4f81bd" %)**TRI Status1**(%%) is a combination to show which condition is trigger. Totally 1byte as below
--[[image:image-20220524090249-3.png]]
++(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:515px" %)
++|**bit7**|**bit6**|**bit5**|**bit4**|**bit3**|**bit2**|**bit1**|**bit0**
++|(((
++AV1_LOW
++)))|(((
++AV1_HIGH
++)))|(((
++AV2_LOW
++)))|(((
++AV2_HIGH
++)))|(((
++AC1_LOW
++)))|(((
++AC1_HIGH
++)))|(((
++AC2_LOW
++)))|(((
++AC2_HIGH
++)))
  * Each bits shows which status has been trigger on this uplink.
@@ -698,10 +698,11 @@
  10000000: Means this packet is trigger by AC1_LOW. Means voltage too low.
--
  (% style="color:#4f81bd" %)**TRI_DI FLAG+STA **(%%)is a combination to show which condition is trigger. Totally 1byte as below
--[[image:image-20220524090456-4.png]]
++(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:515px" %)
++|**bit7**|**bit6**|**bit5**|**bit4**|**bit3**|**bit2**|**bit1**|**bit0**
++|N/A|N/A|N/A|N/A|DI2_STATUS|DI2_FLAG|DI1_STATUS|DI1_FLAG
  * Each bits shows which status has been trigger on this uplink.
@@ -712,7 +712,6 @@
  00000101: Means both DI1 and DI2 trigger are enabled.
--
  (% style="color:#4f81bd" %)**Enable/Disable MOD6 **(%%): 0x01: MOD6 is enable. 0x00: MOD6 is disable.
  Downlink command to poll MOD6 status:
@@ -722,8 +722,6 @@
  When device got this command, it will send the MOD6 payload.
--
--
  === 3.3.7 Payload Decoder ===
  (((
@@ -733,32 +733,33 @@
  )))
--
  == 3.4 Configure LT via AT or Downlink ==
++(((
  User can configure LT I/O Controller via AT Commands or LoRaWAN Downlink Commands
++)))
  (((
++(((
  There are two kinds of Commands:
  )))
++)))
--* (% style="color:#4f81bd" %)**Common Commands**(%%): They should be available for each sensor, such as: change uplink interval, reset device. For firmware v1.5.4, user can find what common commands it supports: [[End Device AT Commands and Downlink Command>>doc:Main.End Device AT Commands and Downlink Command.WebHome]]
++* (% style="color:blue" %)**Common Commands**(%%): They should be available for each sensor, such as: change uplink interval, reset device. For firmware v1.5.4, user can find what common commands it supports: [[End Device AT Commands and Downlink Command>>doc:Main.End Device AT Commands and Downlink Command.WebHome]]
--* (% style="color:#4f81bd" %)**Sensor Related Commands**(%%): These commands are special designed for LT-22222-L.  User can see these commands below:
++* (% style="color:blue" %)**Sensor Related Commands**(%%): These commands are special designed for LT-22222-L.  User can see these commands below:
--
--
  === 3.4.1 Common Commands ===
++(((
  They should be available for each of Dragino Sensors, such as: change uplink interval, reset device. For firmware v1.5.4, user can find what common commands it supports: [[End Device AT Commands and Downlink Command>>doc:Main.End Device AT Commands and Downlink Command.WebHome]]
++)))
--
  === 3.4.2 Sensor related commands ===
--
  ==== 3.4.2.1 Set Transmit Interval ====
@@ -766,7 +766,7 @@
  * (% style="color:#037691" %)**AT Command:**
--**AT+TDC=N **
++(% style="color:blue" %)**AT+TDC=N **
  **Example: **AT+TDC=30000. Means set interval to 30 seconds
@@ -774,216 +774,170 @@
  * (% style="color:#037691" %)**Downlink Payload (prefix 0x01):**
--**0x01 aa bb cc     ~/~/ Same as AT+TDC=0x(aa bb cc)**
++(% style="color:blue" %)**0x01 aa bb cc  **(%%)**   ~/~/ Same as AT+TDC=0x(aa bb cc)**
--
  ==== 3.4.2.2 Set Work Mode (AT+MOD) ====
  Set work mode.
--* (% style="color:#037691" %)**AT Command:**
++* (% style="color:#037691" %)**AT Command:**(%%) (% style="color:blue" %)**AT+MOD=N  **
--**AT+MOD=N  **
--
--
  **Example**: AT+MOD=2. Set work mode to Double DI counting mode
--
  * (% style="color:#037691" %)**Downlink Payload (prefix 0x0A):**
--**0x0A aa    ** ~/~/ Same as AT+MOD=aa
++(% style="color:blue" %)**0x0A aa  **(%%)**  ** ~/~/ Same as AT+MOD=aa
--
  ==== 3.4.2.3 Poll an uplink ====
--* (% style="color:#037691" %)**AT Command:**
++* (% style="color:#037691" %)**AT Command:**(%%) There is no AT Command to poll uplink
--There is no AT Command to poll uplink
--
--
  * (% style="color:#037691" %)**Downlink Payload (prefix 0x08):**
--**0x08 FF     **~/~/ Poll an uplink
++(% style="color:blue" %)**0x08 FF  **(%%)**   **~/~/ Poll an uplink
--
  **Example**: 0x08FF, ask device to send an Uplink
--
  ==== 3.4.2.4 Enable Trigger Mode ====
  Use of trigger mode, please check [[ADDMOD6>>||anchor="H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29"]]
--* (% style="color:#037691" %)**AT Command:**
++* (% style="color:#037691" %)**AT Command:**(%%) (% style="color:blue" %)**AT+ADDMOD6=1 or 0**
--**AT+ADDMOD6=1 or 0**
++(% style="color:red" %)**1:** (%%)Enable Trigger Mode
--1: Enable Trigger Mode
++(% style="color:red" %)**0: **(%%)Disable Trigger Mode
--0: Disable Trigger Mode
--
  * (% style="color:#037691" %)**Downlink Payload (prefix 0x0A 06):**
--**0x0A 06 aa    ** ~/~/ Same as AT+ADDMOD6=aa
++(% style="color:blue" %)**0x0A 06 aa    **(%%)    ~/~/ Same as AT+ADDMOD6=aa
--
  ==== 3.4.2.5 Poll trigger settings ====
--Poll trigger settings,
++Poll trigger settings
  * (% style="color:#037691" %)**AT Command:**
  There is no AT Command for this feature.
--
  * (% style="color:#037691" %)**Downlink Payload (prefix 0x AB 06):**
--**0xAB 06         **~/~/ Poll trigger settings, device will uplink trigger settings once receive this command
++(% style="color:blue" %)**0xAB 06  **  (%%)   ~/~/ Poll trigger settings, device will uplink trigger settings once receive this command
--
  ==== 3.4.2.6 Enable / Disable DI1/DI2/DI3 as trigger ====
  Enable Disable DI1/DI2/DI2 as trigger,
--* (% style="color:#037691" %)**AT Command:**
++* (% style="color:#037691" %)**AT Command:**(%%) (% style="color:blue" %)**Format: AT+DTRI=<DI1_TIRGGER_FlAG>,< DI2_TIRGGER_FlAG >**
--**Format: AT+DTRI=<DI1_TIRGGER_FlAG>,< DI2_TIRGGER_FlAG >**
++**Example:** AT+ DTRI =1,0   (Enable DI1 trigger / disable DI2 trigger)
--**Example:**
--
--AT+ DTRI =1,0   (Enable DI1 trigger / disable DI2 trigger)
--
  * (% style="color:#037691" %)**Downlink Payload (prefix 0xAA 02):**
--**0xAA 02 aa bb        **~/~/ Same as AT+DTRI=aa,bb
++(% style="color:blue" %)**0xAA 02 aa bb   **  (%%) ~/~/ Same as AT+DTRI=aa,bb
--
  ==== 3.4.2.7 Trigger1 – Set DI1 or DI3 as trigger ====
  Set DI1 or DI3(for LT-33222-L) trigger.
--* (% style="color:#037691" %)**AT Command:**
++* (% style="color:#037691" %)**AT Command:**(%%) (% style="color:blue" %)**AT+TRIG1=a,b**
--**AT+TRIG1=a,b**
++(% style="color:red" %)**a :** (%%)Interrupt mode. 0: falling edge; 1: rising edge, 2: falling and raising edge(for MOD=1).
--a : Interrupt mode. 0: falling edge; 1: rising edge, 2: falling and raising edge(for MOD=1).
++(% style="color:red" %)**b :** (%%)delay timing.
--b : delay timing.
++**Example:** AT+TRIG1=1,100(set DI1 port to trigger on high level, valid signal is 100ms )
--**Example:**
--
--AT+TRIG1=1,100(set DI1 port to trigger on high level, valid signal is 100ms )
--
--
  * (% style="color:#037691" %)**Downlink Payload (prefix 0x09 01 ):**
--* **0x09 01 aa bb cc    **     ~/~/ same as AT+TRIG1=aa,0x(bb cc)
++(% style="color:blue" %)**0x09 01 aa bb cc    ** (%%)    ~/~/ same as AT+TRIG1=aa,0x(bb cc)
++
  ==== 3.4.2.8 Trigger2 – Set DI2 as trigger ====
  Set DI2 trigger.
--* (% style="color:#037691" %)**AT Command:**
++* (% style="color:#037691" %)**AT Command:**(%%) (% style="color:blue" %)**AT+TRIG2=a,b**
--**AT+TRIG2=a,b**
++(% style="color:red" %)**a :** (%%)Interrupt mode. 0: falling edge; 1: rising edge, 2: falling and raising edge(for MOD=1).
++(% style="color:red" %)**b :** (%%)delay timing.
--a : Interrupt mode. 0: falling edge; 1: rising edge, 2: falling and raising edge(for MOD=1).
++**Example:** AT+TRIG2=0,100(set DI1 port to trigger on low level, valid signal is 100ms )
--b : delay timing.
--
--**Example:**
--
--AT+TRIG2=0,100(set DI1 port to trigger on low level, valid signal is 100ms )
--
--
  * (% style="color:#037691" %)**Downlink Payload (prefix 0x09 02 ):**
--**0x09 02 aa bb cc           **~/~/ same as AT+TRIG1=aa,0x(bb cc)
++(% style="color:blue" %)**0x09 02 aa bb cc   **  (%%)~/~/ same as AT+TRIG2=aa,0x(bb cc)
--
  ==== 3.4.2.9 Trigger – Set AC (current) as trigger ====
  Set current trigger , base on AC port. See [[trigger mode>>||anchor="H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29"]]
--* (% style="color:#037691" %)**AT Command**
++* (% style="color:#037691" %)**AT Command:**(%%) (% style="color:blue" %)**AT+ACLIM**
--**AT+ACLIM**
--
--
  * (% style="color:#037691" %)**Downlink Payload (prefix 0xAA 01 )**
--**0x AA 01 aa bb cc dd ee ff gg hh        **   ~/~/ same as AT+ACLIM See [[trigger mode>>||anchor="H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29"]]
++(% style="color:blue" %)**0x AA 01 aa bb cc dd ee ff gg hh        ** (%%)  ~/~/ same as AT+ACLIM See [[trigger mode>>||anchor="H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29"]]
--
  ==== 3.4.2.10 Trigger – Set AV (voltage) as trigger ====
  Set current trigger , base on AV port. See [[trigger mode>>||anchor="H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29"]]
--* (% style="color:#037691" %)**AT Command**
++* (% style="color:#037691" %)**AT Command**(%%): (% style="color:blue" %)**AT+AVLIM    **(%%)**        See [[trigger mode>>||anchor="H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29"]]**
--**AT+AVLIM            See [[trigger mode>>||anchor="H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29"]]**
--
--
  * (% style="color:#037691" %)**Downlink Payload (prefix 0xAA 00 )**
--**0x AA 00 aa bb cc dd ee ff gg hh    ** ~/~/ same as AT+AVLIM See [[trigger mode>>||anchor="H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29"]]
++(% style="color:blue" %)**0x AA 00 aa bb cc dd ee ff gg hh    ** (%%) ~/~/ same as AT+AVLIM See [[trigger mode>>||anchor="H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29"]]
--
  ==== 3.4.2.11 Trigger – Set minimum interval ====
  Set AV and AC trigger minimum interval, system won't response to the second trigger within this set time after the first trigger.
--* (% style="color:#037691" %)**AT Command**
++* (% style="color:#037691" %)**AT Command**(%%): (% style="color:blue" %)**AT+ATDC=5        ** ~/~/ (%%)Device won't response the second trigger within 5 minute after the first trigger.
--**AT+ATDC=5        ** Device won't response the second trigger within 5 minute after the first trigger.
--
--
  * (% style="color:#037691" %)**Downlink Payload (prefix 0xAC )**
--**0x AC aa bb   ** ~/~/ same as AT+ATDC=0x(aa bb)   . Unit (min)
++(% style="color:blue" %)**0x AC aa bb   **(%%) ~/~/ same as AT+ATDC=0x(aa bb)   . Unit (min)
  (((
--
--
  (% style="color:red" %)**Note: ATDC setting must be more than 5min**
  )))
--
  ==== 3.4.2.12 DO ~-~- Control Digital Output DO1/DO2/DO3 ====
@@ -993,8 +993,9 @@
  * (% style="color:#037691" %)**Downlink Payload (prefix 0x02)**
--* **0x02 aa bb cc     **~/~/ Set DO1/DO2/DO3 output
++(% style="color:blue" %)**0x02 aa bb cc     ** (%%)~/~/ Set DO1/DO2/DO3 output
++
  (((
  If payload = 0x02010001, while there is load between V+ and DOx, it means set DO1 to low, DO2 to high and DO3 to low.
  )))
@@ -1001,10 +1001,14 @@
  (((
 : Low,  00: High ,  11: No action
++
++(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
++|(% style="background-color:#4f81bd; color:white" %)**Downlink Code**|(% style="background-color:#4f81bd; color:white" %)**DO1**|(% style="background-color:#4f81bd; color:white" %)**DO2**|(% style="background-color:#4f81bd; color:white" %)**DO3**
++|02  01  00  11|Low|High|No Action
++|02  00  11  01|High|No Action|Low
++|02  11  01  00|No Action|Low|High
  )))
--[[image:image-20220524092754-5.png]]
--
  (((
  (% style="color:red" %)**Note: For LT-22222-L, there is no DO3, the last byte can use any value.**
  )))
@@ -1015,7 +1015,6 @@
--
  ==== 3.4.2.13 DO ~-~- Control Digital Output DO1/DO2/DO3 with time control ====
@@ -1026,7 +1026,7 @@
  * (% style="color:#037691" %)**Downlink Payload (prefix 0xA9)**
--**0xA9 aa bb cc     **~/~/ Set DO1/DO2/DO3 output with time control
++(% style="color:blue" %)**0xA9 aa bb cc     **(%%) ~/~/ Set DO1/DO2/DO3 output with time control
  This is to control the digital output time of DO pin. Include four bytes:
@@ -1042,23 +1042,37 @@
  (% style="color:#4f81bd" %)**Third Byte**(%%): Control Method and Ports status:
--[[image:image-20220524093238-6.png]]
++(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:300px" %)
++|(% style="background-color:#4f81bd; color:white" %)**Second Byte**|(% style="background-color:#4f81bd; color:white" %)**Status**
++|0x01|DO1 set to low
++|0x00|DO1 set to high
++|0x11|DO1 NO Action
--
  (% style="color:#4f81bd" %)**Fourth Byte**(%%): Control Method and Ports status:
--[[image:image-20220524093328-7.png]]
++(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:300px" %)
++|(% style="background-color:#4f81bd; color:white" %)**Second Byte**|(% style="background-color:#4f81bd; color:white" %)**Status**
++|0x01|DO2 set to low
++|0x00|DO2 set to high
++|0x11|DO2 NO Action
--
  (% style="color:#4f81bd" %)**Fifth Byte**(%%): Control Method and Ports status:
--[[image:image-20220524093351-8.png]]
++(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:300px" %)
++|(% style="background-color:#4f81bd; color:white" %)**Second Byte**|(% style="background-color:#4f81bd; color:white" %)**Status**
++|0x01|DO3 set to low
++|0x00|DO3 set to high
++|0x11|DO3 NO Action
++(% style="color:#4f81bd" %)**Sixth and Seventh and Eighth and Ninth Byte**:(%%) Latching time. Unit: ms
--(% style="color:#4f81bd" %)**Sixth and Seventh and Eighth and Ninth Byte**:
--         Latching time. Unit: ms
++(% style="color:red" %)**Note: **
++   Since Firmware v1.6.0, the latch time support 4 bytes and 2 bytes
++
++   Before Firmwre v1.6.0 the latch time only suport 2 bytes.
++
  (% style="color:red" %)**Device will upload a packet if downlink code executes successfully.**
@@ -1082,7 +1082,6 @@
--
  ==== 3.4.2.14 Relay ~-~- Control Relay Output RO1/RO2 ====
@@ -1093,7 +1093,7 @@
  * (% style="color:#037691" %)**Downlink Payload (prefix 0x03):**
--**0x03 aa bb     **~/~/ Set RO1/RO2 output
++(% style="color:blue" %)**0x03 aa bb     ** (%%)~/~/ Set RO1/RO2 output
  (((
@@ -1101,11 +1101,18 @@
  )))
  (((
--01: Close ,  00: Open , 11: No action
--)))
++00: Close ,  01: Open , 11: No action
--(((
--[[image:image-20220524093724-9.png]]
++(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:320px" %)
++|(% style="background-color:#4f81bd; color:white" %)**Downlink Code**|(% style="background-color:#4f81bd; color:white" %)**RO1**|(% style="background-color:#4f81bd; color:white" %)**RO2**
++|03  00  11|Open|No Action
++|03  01  11|Close|No Action
++|03  11  00|No Action|Open
++|03  11  01|No Action|Close
++|03  00  00|Open|Open
++|03  01  01|Close|Close
++|03  01  00|Close|Open
++|03  00  01|Open|Close
  )))
  (% style="color:red" %)**Device will upload a packet if downlink code executes successfully.**
@@ -1112,7 +1112,6 @@
--
  ==== 3.4.2.15 Relay ~-~- Control Relay Output RO1/RO2 with time control ====
@@ -1123,7 +1123,7 @@
  * (% style="color:#037691" %)**Downlink Payload (prefix 0x05):**
--**0x05 aa bb cc dd     **~/~/ Set RO1/RO2 relay with time control
++(% style="color:blue" %)**0x05 aa bb cc dd     ** (%%)~/~/ Set RO1/RO2 relay with time control
  This is to control the relay output time of relay. Include four bytes:
@@ -1144,12 +1144,20 @@
  (% style="color:#4f81bd" %)**Fourth/Fifth/Sixth/Seventh Bytes(cc)**(%%): Latching time. Unit: ms
++
++(% style="color:red" %)**Note:**
++
++   Since Firmware v1.6.0, the latch time support 4 bytes and 2 bytes
++
++   Before Firmwre v1.6.0 the latch time only suport 2 bytes.
++
++
  (% style="color:red" %)**Device will upload a packet if downlink code executes successfully.**
  **Example payload:**
--**~1. 05 01 11 07 D**
++**~1. 05 01 11 07 D0**
  Relay1 and Relay 2 will be set to NC , last 2 seconds, then change back to original state.
@@ -1172,156 +1172,132 @@
  When voltage exceed the threshold, count. Feature see [[MOD4>>||anchor="H3.3.4AT2BMOD3D42CSingleDICounting2B1xVoltageCounting"]]
--* (% style="color:#037691" %)**AT Command:**
++* (% style="color:#037691" %)**AT Command:**(%%) (% style="color:blue" %)**AT+VOLMAX   ** (%%)~/~/ See [[MOD4>>||anchor="H3.3.4AT2BMOD3D42CSingleDICounting2B1xVoltageCounting"]]
--**AT+VOLMAX   ** ~/~/ See [[MOD4>>||anchor="H3.3.4AT2BMOD3D42CSingleDICounting2B1xVoltageCounting"]]
--
--
  * (% style="color:#037691" %)**Downlink Payload (prefix 0xA5):**
--**0xA5 aa bb cc   **~/~/ Same as AT+VOLMAX=(aa bb),cc
++(% style="color:blue" %)**0xA5 aa bb cc   ** (%%)~/~/ Same as AT+VOLMAX=(aa bb),cc
--
  ==== 3.4.2.17 Counting ~-~- Pre-configure the Count Number ====
--* (% style="color:#037691" %)**AT Command:**
++* (% style="color:#037691" %)**AT Command:**(%%) (% style="color:blue" %)**AT+SETCNT=aa,(bb cc dd ee) **
--**AT+SETCNT=aa,(bb cc dd ee) **
++(% style="color:red" %)**aa:**(%%) 1: Set count1; 2: Set count2; 3: Set AV1 count
--aa: 1: Set count1,
++(% style="color:red" %)**bb cc dd ee: **(%%)number to be set
--2: Set count2,
--3: Set AV1 count
--
--Bb cc dd ee: number to be set
--
--
  * (% style="color:#037691" %)**Downlink Payload (prefix 0xA8):**
--**0x A8 aa bb cc dd ee     **~/~/ same as AT+SETCNT=aa,(bb cc dd ee)
++(% style="color:blue" %)**0x A8 aa bb cc dd ee     ** (%%)~/~/ same as AT+SETCNT=aa,(bb cc dd ee)
--
  ==== 3.4.2.18 Counting ~-~- Clear Counting ====
  Clear counting for counting mode
--* (% style="color:#037691" %)**AT Command:**
++* (% style="color:#037691" %)**AT Command:**(%%) (% style="color:blue" %)**AT+CLRCOUNT         **(%%) ~/~/ clear all counting
--**AT+CLRCOUNT ** ~/~/ clear all counting
--
--
  * (% style="color:#037691" %)**Downlink Payload (prefix 0xA6):**
--**0x A6 01    ** ~/~/ clear all counting
++(% style="color:blue" %)**0x A6 01    ** (%%)~/~/ clear all counting
--
  ==== 3.4.2.19 Counting ~-~- Change counting mode save time ====
  * (% style="color:#037691" %)**AT Command:**
--**AT+COUTIME=60  **~/~/ Set save time to 60 seconds. Device will save the counting result in internal flash every 60 seconds. (min value: 30)
++(% style="color:blue" %)**AT+COUTIME=60  **(%%)~/~/ Set save time to 60 seconds. Device will save the counting result in internal flash every 60 seconds. (min value: 30)
  * (% style="color:#037691" %)**Downlink Payload (prefix 0xA7):**
--**0x A7 aa bb cc     **~/~/ same as AT+COUTIME =aa bb cc,
++(% style="color:blue" %)**0x A7 aa bb cc     ** (%%)~/~/ same as AT+COUTIME =aa bb cc,
  (((
  range: aa bb cc:0 to 16777215,  (unit:second)
++)))
--
--)))
++==== 3.4.2.20 Reset save RO DO state ====
--==== 3.4.2.20 Reset save DR DO state ====
--
  * (% style="color:#037691" %)**AT Command:**
--**AT+RODORET=1  **~/~/ RODO will close when the device joining the network. (default)
++(% style="color:blue" %)**AT+RODORESET=1    **(%%)~/~/ RODO will close when the device joining the network. (default)
--**AT+RODORET=0  **~/~/After the device is reset, the previously saved RODO state (only MOD2 to MOD5) is read, and its state is not changed when it is reconnected to the network.
++(% style="color:blue" %)**AT+RODORESET=0    **(%%)~/~/ After the device is reset, the previously saved RODO state (only MOD2 to MOD5) is read, and its state is not changed when it is reconnected to the network.
  * (% style="color:#037691" %)**Downlink Payload (prefix 0xAD):**
--**0x AD aa      **~/~/ same as AT+RODORET =aa
++(% style="color:blue" %)**0x AD aa      ** (%%)~/~/ same as AT+RODORET =aa
--(((
--
--
  ==== 3.4.2.21 Encrypted payload ====
  * (% style="color:#037691" %)**AT Command:**
--**AT+DECRYPT=1  **~/~/ The payload is uploaded without encryption
++(% style="color:blue" %)**AT+DECRYPT=1  **   (%%)~/~/ The payload is uploaded without encryption
--**AT+DECRYPT=0  **~/~/Encrypt when uploading payload (default)
++(% style="color:blue" %)**AT+DECRYPT=0    **(%%)~/~/  Encrypt when uploading payload (default)
--
  ==== 3.4.2.22 Get sensor value ====
  * (% style="color:#037691" %)**AT Command:**
--**AT+GETSENSORVALUE=0  **~/~/ The serial port gets the reading of the current sensor
++(% style="color:blue" %)**AT+GETSENSORVALUE=0    **(%%)~/~/ The serial port gets the reading of the current sensor
--**AT+GETSENSORVALUE=1  **~/~/The serial port gets the current sensor reading and uploads it.
++(% style="color:blue" %)**AT+GETSENSORVALUE=1    **(%%)~/~/ The serial port gets the current sensor reading and uploads it.
--
  ==== 3.4.2.23 Resets the downlink packet count ====
  * (% style="color:#037691" %)**AT Command:**
--**AT+DISFCNTCHECK=0  **~/~/ When the downlink packet count sent by the server is less than the node downlink packet count or exceeds 16384, the node will no longer receive downlink packets (default)
++(% style="color:blue" %)**AT+DISFCNTCHECK=0   **(%%)~/~/ When the downlink packet count sent by the server is less than the node downlink packet count or exceeds 16384, the node will no longer receive downlink packets (default)
--**AT+DISFCNTCHECK=1  **~/~/When the downlink packet count sent by the server is less than the node downlink packet count or exceeds 16384, the node resets the downlink packet count and keeps it consistent with the server downlink packet count.
++(% style="color:blue" %)**AT+DISFCNTCHECK=1   **(%%)~/~/ When the downlink packet count sent by the server is less than the node downlink packet count or exceeds 16384, the node resets the downlink packet count and keeps it consistent with the server downlink packet count.
--
  ==== 3.4.2.24 When the limit bytes are exceeded, upload in batches ====
  * (% style="color:#037691" %)**AT Command:**
--       **AT+DISMACANS=0**     ~/~/ When the MACANS of the reply server plus the payload exceeds the maximum number of bytes of 11 bytes (DR0 of US915, DR2 of AS923, DR2 of AU195), the node will send a packet with a payload of 00 and a port of 4. (default)
++(% style="color:blue" %)**AT+DISMACANS=0**   (%%)  ~/~/ When the MACANS of the reply server plus the payload exceeds the maximum number of bytes of 11 bytes (DR0 of US915, DR2 of AS923, DR2 of AU195), the node will send a packet with a payload of 00 and a port of 4. (default)
--       **AT+DISMACANS=1**      ~/~/ When the MACANS of the reply server plus the payload exceeds the maximum number of bytes of the DR, the node will ignore the MACANS and not reply, and only upload the payload part.
++(% style="color:blue" %)**AT+DISMACANS=1**  (%%)    ~/~/ When the MACANS of the reply server plus the payload exceeds the maximum number of bytes of the DR, the node will ignore the MACANS and not reply, and only upload the payload part.
  * (% style="color:#037691" %)**Downlink Payload **(%%)**:**
--**0x21 00 01 **         ~/~/ Set  the DISMACANS=1
++(% style="color:blue" %)**0x21 00 01 **   (%%)      ~/~/ Set  the DISMACANS=1
--
  ==== 3.4.2.25 Copy downlink to uplink ====
  * (% style="color:#037691" %)**AT Command**(%%)**:**
--       **AT+RPL=5**     ~/~/ After receiving the package from the server, it will immediately upload the content of the package to the server, the port number is 100.
++(% style="color:blue" %)**AT+RPL=5**   (%%)  ~/~/ After receiving the package from the server, it will immediately upload the content of the package to the server, the port number is 100.
  Example：**aa xx xx xx xx**         ~/~/ aa indicates whether the configuration has changed, 00 is yes, 01 is no; xx xx xx xx are the bytes sent.
@@ -1344,7 +1344,7 @@
  * (((
  (% style="color:#037691" %)**Downlink Payload**(%%)**:**
--**26 01  **   ~/~/  Downlink 26 01 can query device upload frequency, frequency band, software version number, TDC time.
++(% style="color:blue" %)**26 01  ** (%%)  ~/~/  Downlink 26 01 can query device upload frequency, frequency band, software version number, TDC time.
  )))
@@ -1354,62 +1354,73 @@
  [[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LSN50%20%26%20LSN50-V2%20-%20LoRaWAN%20Sensor%20Node%20User%20Manual/WebHome/image-20220823173929-8.png?width=1205&height=76&rev=1.1||alt="image-20220823173929-8.png"]]
--
--)))
++== 3.5 Integrating with ThingsEye.io ==
--== 3.5 Integrate with Mydevice ==
++If you are using one of The Things Stack plans, you can integrate ThingsEye.io with your application. Once integrated, ThingsEye.io works as an MQTT client for The Things Stack MQTT broker, allowing it to subscribe to upstream traffic and publish downlink traffic.
++=== 3.5.1 Configuring The Things Stack Sandbox ===
--Mydevices provides a human friendly interface to show the sensor data, once we have data in TTN, we can use Mydevices to connect to TTN and see the data in Mydevices. Below are the steps:
++* Go to your Application and select MQTT under Integrations.
++* In the Connection credentials section, under Username, The Thins Stack displays an auto-generated username. You can use it or provide a new one.
++* For the Password, click the Generate new API key button to generate a password. You can see it by clicking on the eye button.
--(((
--(% style="color:blue" %)**Step 1**(%%): Be sure that your device is programmed and properly connected to the network at this time.
--)))
++[[image:tts-mqtt-integration.png||height="625" width="1000"]]
--(((
--(% style="color:blue" %)**Step 2**(%%): To configure the Application to forward data to Mydevices you will need to add integration. To add the Mydevices integration, perform the following steps:
++=== 3.5.2 Configuring ThingsEye.io ===
--
--)))
++* Login to your thingsEye.io account.
++* Under the Integrations center, click Integrations.
++* Click the Add integration button (the button with the + symbol).
--[[image:image-20220719105525-1.png||height="377" width="677"]]
++[[image:thingseye-io-step-1.png||height="625" width="1000"]]
++On the Add integration page configure the following:
--[[image:image-20220719110247-2.png||height="388" width="683"]]
++Basic settings:
++* Select The Things Stack Community from the Integration type list.
++* Enter a suitable name for your integration in the Name box or keep the default name.
++* Click the Next button.
--(% style="color:blue" %)**Step 3**(%%): Create an account or log in Mydevices.
++[[image:thingseye-io-step-2.png||height="625" width="1000"]]
--(% style="color:blue" %)**Step 4**(%%): Search LT-22222-L(for both LT-22222-L / LT-33222-L) and add DevEUI.(% style="display:none" %)
++Uplink Data converter:
--Search under The things network
++* Click the Create New button if it is not selected by default.
++* Click the JavaScript button.
++* Paste the uplink decoder function into the text area (first, delete the default code). The demo decoder function can be found here.
++* Click the Next button.
--[[image:1653356838789-523.png||height="337" width="740"]]
++[[image:thingseye-io-step-3.png||height="625" width="1000"]]
++Downlink Data converter (this is an optional step):
++* Click the Create new button if it is not selected by default.
++* Click the JavaScript button.
++* Paste the downlink decoder function into the text area (first, delete the default code). The demo decoder function can be found here.
++* Click the Next button.
--After added, the sensor data arrive TTN, it will also arrive and show in Mydevices.
++[[image:thingseye-io-step-4.png||height="625" width="1000"]]
--[[image:image-20220524094909-1.png||height="335" width="729"]]
++Connection:
++* Choose Region from the Host type.
++* Enter the cluster of your The Things Stack in the Region textbox.
++* Enter the Username and Password in the Credentials section. Use the same username and password you created with the MQTT page of The Things Stack.
++* Click Check connection to test the connection. If the connection is successful, you can see the message saying Connected.
++* Click the Add button.
--[[image:image-20220524094909-2.png||height="337" width="729"]]
++[[image:thingseye-io-step-5.png||height="625" width="1000"]]
--[[image:image-20220524094909-3.png||height="338" width="727"]]
++Your integration is added to the integrations list and it will display on the Integrations page.
++[[image:thingseye-io-step-6.png||height="625" width="1000"]]
--[[image:image-20220524094909-4.png||height="339" width="728"]](% style="display:none" %)
++== 3.6 Interface Details ==
--[[image:image-20220524094909-5.png||height="341" width="734"]]
--
--
--
--== 3.6 Interface Detail ==
--
--
  === 3.6.1 Digital Input Port: DI1/DI2 /DI3 ( For LT-33222-L, low active ) ===
@@ -1418,17 +1418,16 @@
  [[image:1653356991268-289.png]]
++=== 3.6.2 Digital Input Ports: DI1/DI2 ( For LT-22222-L) ===
--=== 3.6.2 Digital Input Port: DI1/DI2 ( For LT-22222-L) ===
--
  (((
--The DI port of LT-22222-L can support NPN or PNP output sensor.
++The DI ports of the LT-22222-L can support **NPN**, **PNP**, or **dry contact** output sensors.
  )))
  (((
  (((
--Internal circuit as below, the NEC2501 is a photocoupler, the Active current (from NEC2501 pin 1 to pin 2 is 1ma and the max current is 50mA. When there is active current pass NEC2501 pin1 to pin2. The DI will be active high.
++The part of the internal circuit of the LT-22222-L shown below includes the NEC2501 photocoupler. The active current from NEC2501 pin 1 to pin 2 is 1 mA, with a maximum allowable current of 50 mA. When active current flows from NEC2501 pin 1 to pin 2, the DI becomes active HIGH, and the DI LED status changes.
  )))
@@ -1438,7 +1438,7 @@
  (((
  (((
--When use need to connect a device to the DI port, both DI1+ and DI1- must be connected.
++(% style="color:#000000; font-family:Arial,sans-serif; font-size:11pt; font-style:normal; font-variant-alternates:normal; font-variant-east-asian:normal; font-variant-ligatures:normal; font-variant-numeric:normal; font-variant-position:normal; font-weight:400; text-decoration:none; white-space:pre-wrap" %)When connecting a device to the DI port, both DI1+ and DI1- must be connected.
  )))
  )))
@@ -1447,22 +1447,22 @@
  )))
  (((
--(% style="color:blue" %)**Example1**(%%): Connect to a Low active sensor.
++(% style="color:blue" %)**Example1**(%%): Connecting to a low-active sensor.
  )))
  (((
--This type of sensor will output a low signal GND when active.
++This type of sensors outputs a low (GND) signal when active.
  )))
  * (((
--Connect sensor's output to DI1-
++Connect the sensor's output to DI1-
  )))
  * (((
--Connect sensor's VCC to DI1+.
++Connect the sensor's VCC to DI1+.
  )))
  (((
--So when sensor active, the current between NEC2501 pin1 and pin2 is：
++When the sensor is active, the current between NEC2501 pin 1 and pin 2 will be：
  )))
  (((
@@ -1470,32 +1470,30 @@
  )))
  (((
--If** DI1+ **= **12v**, the [[image:1653968155772-850.png||height="23" width="19"]]= 12mA , So the LT-22222-L will be able to detect this active signal.
++For example, if** DI1+ **= **12V**, the resulting current is [[image:1653968155772-850.png||height="23" width="19"]]= 12mA. Therefore, the LT-22222-L will be able to detect this active signal.
  )))
  (((
--
--
  )))
  (((
--(% style="color:blue" %)**Example2**(%%): Connect to a High active sensor.
++(% style="color:blue" %)**Example2**(%%): Connecting to a high-active sensor.
  )))
  (((
--This type of sensor will output a high signal (example 24v) when active.
++This type of sensors outputs a high signal (e.g., 24V) when active.
  )))
  * (((
--Connect sensor's output to DI1+
++Connect the sensor's output to DI1+
  )))
  * (((
--Connect sensor's GND DI1-.
++Connect the sensor's GND DI1-.
  )))
  (((
--So when sensor active, the current between NEC2501 pin1 and pin2 is:
++When the sensor is active, the current between NEC2501 pin1 and pin2 will be:
  )))
  (((
@@ -1503,32 +1503,30 @@
  )))
  (((
--If **DI1+ = 24v**, the[[image:1653968155772-850.png||height="23" width="19"]] 24mA , So the LT-22222-L will be able to detect this high active signal.
++If **DI1+ = 24V**, the resulting current[[image:1653968155772-850.png||height="23" width="19"]] 24mA , Therefore, the LT-22222-L will detect this high-active signal.
  )))
  (((
--
--
  )))
  (((
--(% style="color:blue" %)**Example3**(%%): Connect to a 220v high active sensor.
++(% style="color:blue" %)**Example3**(%%): Connecting to a 220V high-active sensor.
  )))
  (((
--Assume user want to monitor an active signal higher than 220v, to make sure not burn the photocoupler
++Assume that you want to monitor an active signal higher than 220V without damaging the photocoupler
  )))
  * (((
--Connect sensor's output to DI1+ with a serial 50K resistor
++Connect the sensor's output to DI1+ with a 50K resistor in series.
  )))
  * (((
--Connect sensor's GND DI1-.
++Connect the sensor's GND DI1-.
  )))
  (((
--So when sensor active, the current between NEC2501 pin1 and pin2 is:
++When the sensor is active, the current between NEC2501 pin1 and pin2 will be:
  )))
  (((
@@ -1536,44 +1536,56 @@
  )))
  (((
--If sensor output is 220v, the [[image:1653968155772-850.png||height="23" width="19"]](% id="cke_bm_243359S" style="display:none" %)[[image:image-20220524095628-8.png]](%%) = DI1+ / 51K.  = 4.3mA , So the LT-22222-L will be able to detect this high active signal safely.
++If the sensor output is 220V, then [[image:1653968155772-850.png||height="23" width="19"]](% id="cke_bm_243359S" style="display:none" %)[[image:image-20220524095628-8.png]](%%) = DI1+ / 51K.  = 4.3mA. Therefore, the LT-22222-L will be able to safely detect this high-active signal.
  )))
++(% style="color:blue" %)**Example4**(%%): Connecting to Dry Contact sensor
--=== 3.6.3 Digital Output Port: DO1/DO2 /DO3 ===
++From DI port circuit above, you can see that activating the photocoupler requires a voltage difference between the DI+ and DI- ports. However, the Dry Contact sensor is a passive component and cannot provide this voltage difference.
++To detect a Dry Contact, you can supply a power source to one pin of the Dry Contact. Below is a reference circuit diagram.
--NPN output: GND or Float. Max voltage can apply to output pin is 36v.
++[[image:image-20230616235145-1.png]]
--[[image:1653357531600-905.png]]
++(% style="color:blue" %)**Example5**(%%): Connecting to an Open Collector
++[[image:image-20240219115718-1.png]]
--=== 3.6.4 Analog Input Interface ===
++=== 3.6.3 Digital Output Ports: DO1/DO2 /DO3 ===
--The analog input interface is as below. The LT will measure the IN2 voltage so to calculate the current pass the Load. The formula is:
++(% style="color:blue" %)**NPN output**(%%): GND or Float. The maximum voltage that can be applied to the output pin is 36V.
++(% style="color:red" %)**Note: The DO pins will float when device is powered off.**
++[[image:1653357531600-905.png]]
++
++
++=== 3.6.4 Analog Input Interfaces ===
++
++
++The analog input interface is shown below. The LT-22222-L will measure the IN2 voltage to calculate the current passing through the load. The formula is:
++
++
  (% style="color:blue" %)**AC2 = (IN2 voltage )/12**
  [[image:1653357592296-182.png]]
--Example to connect a 4~~20mA sensor
++Example:  Connecting a 4~~20mA sensor
--We take the wind speed sensor as an example for reference only.
++We will use the wind speed sensor as an example for reference only.
--**Specifications of the wind speed sensor:**
++(% style="color:blue" %)**Specifications of the wind speed sensor:**
--Red:      12~~24v
++(% style="color:red" %)**Red:      12~~24V**
--Yellow:  4~~20mA
++(% style="color:#ffc000" %)**Yellow:  4~~20mA**
--Black:   GND
++**Black:   GND**
--
  **Connection diagram:**
  [[image:1653357640609-758.png]]
@@ -1581,12 +1581,29 @@
  [[image:1653357648330-671.png||height="155" width="733"]]
++Example: Connecting to a regulated power supply to measure voltage
++[[image:image-20230608101532-1.png||height="606" width="447"]]
++
++[[image:image-20230608101608-2.jpeg||height="379" width="284"]]
++
++[[image:image-20230608101722-3.png||height="102" width="1139"]]
++
++
++(% style="color:blue; font-weight:bold" %)**Specifications of the regulated power supply**(% style="color:blue" %)**:**
++
++(% style="color:red" %)**Red:      12~~24v**
++
++**Black:   GND**
++
++
  === 3.6.5 Relay Output ===
  (((
--The LT serial controller has two relay interfaces; each interface uses two pins of the screw terminal. User can connect other device’s Power Line to in serial of RO1_1 and RO_2. Such as below:
++The LT-22222-L has two relay interfaces, RO1 and RO2, each using two pins of the screw terminal (ROx-1 and ROx-2 where x is the port number, 1 or 2). You can connect a device's power line in series with one of the relay interfaces (e.g., RO1-1 and RO1-2 screw terminals). See the example below:
++
++**Note**: The ROx pins will be in the Open (NO) state when the LT-22222-L is powered off.
  )))
  [[image:image-20220524100215-9.png]]
@@ -1595,27 +1595,51 @@
  [[image:image-20220524100215-10.png||height="382" width="723"]]
--
  == 3.7 LEDs Indicators ==
--[[image:image-20220524100748-11.png]]
++(% border="1" cellspacing="3" style="background-color:#f2f2f2; width:510px" %)
++|(% style="background-color:#4f81bd; color:white; width:50px" %)**LEDs**|(% style="background-color:#4f81bd; color:white; width:460px" %)**Feature**
++|**PWR**|Always on if there is power
++|**TX**|(((
++(((
++Device boot: TX blinks 5 times.
++)))
++(((
++Successful join network: TX ON for 5 seconds.
++)))
++(((
++Transmit a LoRa packet: TX blinks once
++)))
++)))
++|**RX**|RX blinks once when receive a packet.
++|**DO1**|For LT-22222-L: ON when DO1 is low, LOW when DO1 is high
++|**DO2**|For LT-22222-L: ON when DO2 is low, LOW when DO2 is high
++|**DI1**|(((
++For LT-22222-L: ON when DI1 is high, LOW when DI1 is low
++)))
++|**DI2**|(((
++For LT-22222-L: ON when DI2 is high, LOW when DI2 is low
++)))
++|**RO1**|For LT-22222-L: ON when RO1 is closed, LOW when RO1 is open
++|**RO2**|For LT-22222-L: ON when RO2 is closed, LOW when RO2 is open
--= 4. Use AT Command =
++= 4. Using AT Command =
++== 4.1 Connecting the LT-22222-L to a computer ==
--== 4.1 Access AT Command ==
++(((
++The LT-22222-L supports programming using AT Commands. You can use a USB-to-TTL adapter along with a 3.5mm Program Cable to connect the LT-22222-L to a computer, as shown below.
++)))
--LT supports AT Command set. User can use a USB to TTL adapter plus the 3.5mm Program Cable to connect to LT for using AT command, as below.
--
  [[image:1653358238933-385.png]]
  (((
--In PC, User needs to set (% style="color:#4f81bd" %)**serial tool**(%%)(such as [[putty>>url:https://www.chiark.greenend.org.uk/~~sgtatham/putty/latest.html]], SecureCRT) baud rate to (% style="color:green" %)**9600**(%%) to access to access serial console for LT. The AT commands are disable by default and need to enter password (default:(% style="color:green" %)**123456**)(%%) to active it. As shown below:
++On the PC, the user needs to set the (% style="color:#4f81bd" %)**serial tool**(%%)(such as [[putty>>url:https://www.chiark.greenend.org.uk/~~sgtatham/putty/latest.html]], SecureCRT) to a baud rate of (% style="color:green" %)**9600**(%%) to access to access serial console of LT-22222-L. The AT commands are disabled by default, and a password (default:(% style="color:green" %)**123456**)(%%) must be entered to active them, as shown below:
  )))
  [[image:1653358355238-883.png]]
@@ -1622,10 +1622,12 @@
  (((
--More detail AT Command manual can be found at [[AT Command Manual>>url:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/]]
++You can find more details in the [[AT Command Manual>>url:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/]]
  )))
  (((
++The following table lists all the AT commands related to the LT-22222-L, except for those used for switching between modes.
++
  AT+<CMD>?        : Help on <CMD>
  )))
@@ -1638,7 +1638,7 @@
  )))
  (((
--AT+<CMD>=?       : Get the value
++AT+<CMD>=?       :  Get the value
  )))
  (((
@@ -1666,11 +1666,11 @@
  )))
  (((
--AT+APPSKEY: Get or Set the Application Session Key
++AT+APPSKEY:  Get or Set the Application Session Key
  )))
  (((
--AT+APPEUI: Get or Set the Application EUI
++AT+APPEUI:    Get or Set the Application EUI
  )))
  (((
@@ -1682,7 +1682,7 @@
  )))
  (((
--AT+DR: Get or Set the Data Rate. (0-7 corresponding to DR_X)
++AT+DR:  Get or Set the Data Rate. (0-7 corresponding to DR_X)
  )))
  (((
@@ -1718,7 +1718,7 @@
  )))
  (((
--AT+NJM: Get or Set the Network Join Mode. (0: ABP, 1: OTAA)
++AT+NJM:    Get or Set the Network Join Mode. (0: ABP, 1: OTAA)
  )))
  (((
@@ -1762,7 +1762,7 @@
  )))
  (((
--AT+VER: Get current image version and Frequency Band
++AT+VER:  Get current image version and Frequency Band
  )))
  (((
@@ -1770,7 +1770,7 @@
  )))
  (((
--AT+CFS: Get confirmation status of the last AT+SEND (0-1)
++AT+CFS:  Get confirmation status of the last AT+SEND (0-1)
  )))
  (((
@@ -1810,107 +1810,108 @@
  )))
--
  == 4.2 Common AT Command Sequence ==
--
  === 4.2.1 Multi-channel ABP mode (Use with SX1301/LG308) ===
  (((
--**If device has not joined network yet:**
++(((
++(% style="color:blue" %)**If device has not joined network yet:**
  )))
++)))
  (((
--(% style="background-color:#dcdcdc" %)123456
++(% style="background-color:#dcdcdc" %)**123456**
  )))
  (((
--(% style="background-color:#dcdcdc" %)AT+FDR
++(% style="background-color:#dcdcdc" %)**AT+FDR**
  )))
  (((
--(% style="background-color:#dcdcdc" %)123456
++(% style="background-color:#dcdcdc" %)**123456**
  )))
  (((
--(% style="background-color:#dcdcdc" %)AT+NJM=0
++(% style="background-color:#dcdcdc" %)**AT+NJM=0**
  )))
  (((
--(% style="background-color:#dcdcdc" %)ATZ
++(% style="background-color:#dcdcdc" %)**ATZ**
  )))
  (((
--**If device already joined network:**
++(% style="color:blue" %)**If device already joined network:**
  )))
  (((
--(% style="background-color:#dcdcdc" %)AT+NJM=0
++(% style="background-color:#dcdcdc" %)**AT+NJM=0**
  )))
  (((
--(% style="background-color:#dcdcdc" %)ATZ
++(% style="background-color:#dcdcdc" %)**ATZ**
  )))
--
  === 4.2.2 Single-channel ABP mode (Use with LG01/LG02) ===
  (((
--(% style="background-color:#dcdcdc" %)123456(%%)     Enter Password to have AT access.
++(((
++(% style="background-color:#dcdcdc" %)**123456**(%%)        ~/~/ Enter Password to have AT access.
  )))
++)))
  (((
--(% style="background-color:#dcdcdc" %) AT+FDR(%%)   Reset Parameters to Factory Default, Keys Reserve
++(% style="background-color:#dcdcdc" %)** AT+FDR**(%%)     ~/~/ Reset Parameters to Factory Default, Keys Reserve
  )))
  (((
--(% style="background-color:#dcdcdc" %) 123456(%%)     Enter Password to have AT access.
++(% style="background-color:#dcdcdc" %)** 123456**(%%)       ~/~/ Enter Password to have AT access.
  )))
  (((
--(% style="background-color:#dcdcdc" %) AT+CLASS=C(%%) Set to work in CLASS C
++(% style="background-color:#dcdcdc" %)** AT+CLASS=C**(%%)   ~/~/ Set to work in CLASS C
  )))
  (((
--(% style="background-color:#dcdcdc" %) AT+NJM=0(%%)    Set to ABP mode
++(% style="background-color:#dcdcdc" %)** AT+NJM=0**(%%)     ~/~/ Set to ABP mode
  )))
  (((
--(% style="background-color:#dcdcdc" %) AT+ADR=0(%%)    Set the Adaptive Data Rate Off
++(% style="background-color:#dcdcdc" %) **AT+ADR=0**(%%)     ~/~/ Set the Adaptive Data Rate Off
  )))
  (((
--(% style="background-color:#dcdcdc" %) AT+DR=5(%%)       Set Data Rate
++(% style="background-color:#dcdcdc" %)** AT+DR=5**(%%)       ~/~/ Set Data Rate
  )))
  (((
--(% style="background-color:#dcdcdc" %) AT+TDC=60000(%%)              Set transmit interval to 60 seconds
++(% style="background-color:#dcdcdc" %)** AT+TDC=60000**(%%)              ~/~/ Set transmit interval to 60 seconds
  )))
  (((
--(% style="background-color:#dcdcdc" %) AT+CHS=868400000(%%)      Set transmit frequency to 868.4Mhz
++(% style="background-color:#dcdcdc" %)** AT+CHS=868400000**(%%)     ~/~/ Set transmit frequency to 868.4Mhz
  )))
  (((
--(% style="background-color:#dcdcdc" %) AT+RX2FQ=868400000(%%)  Set RX2Frequency to 868.4Mhz (according to the result from server)
++(% style="background-color:#dcdcdc" %)** AT+RX2FQ=868400000**(%%)    ~/~/ Set RX2Frequency to 868.4Mhz (according to the result from server)
  )))
  (((
--(% style="background-color:#dcdcdc" %) AT+RX2DR=5(%%)                  Set RX2DR to match the downlink DR from server. see below
++(% style="background-color:#dcdcdc" %)** AT+RX2DR=5**(%%)** **                   ~/~/ Set RX2DR to match the downlink DR from server. see below
  )))
  (((
--(% style="background-color:#dcdcdc" %) AT+DADDR=26 01 1A F1 (%%)  Set Device Address to 26 01 1A F1, this ID can be found in the LoRa Server portal.
++(% style="background-color:#dcdcdc" %)** AT+DADDR=26 01 1A F1** (%%)     ~/~/ Set Device Address to 26 01 1A F1, this ID can be found in the LoRa Server portal.
  )))
  (((
--(% style="background-color:#dcdcdc" %) ATZ         (%%)                             Reset MCU
++(% style="background-color:#dcdcdc" %)** ATZ**         (%%)                                 ~/~/ Reset MCU
  )))
@@ -1920,12 +1920,14 @@
  )))
  (((
--(% style="color:red" %)1. Make sure the device is set to ABP mode in the IoT Server.
--2. Make sure the LG01/02 gateway RX frequency is exactly the same as AT+CHS setting.
--3. Make sure SF / bandwidth setting in LG01/LG02 match the settings of AT+DR. refer [[this link>>url:http://www.dragino.com/downloads/index.php?dir=LoRa_Gateway/&file=LoRaWAN%201.0.3%20Regional%20Parameters.xlsx]] to see what DR means.
--4. The command AT+RX2FQ and AT+RX2DR is to let downlink work. to set the correct parameters, user can check the actually downlink parameters to be used. As below. Which shows the RX2FQ should use 868400000 and RX2DR should be 5
++**~1. Make sure the device is set to ABP mode in the IoT Server.**
--
++**2. Make sure the LG01/02 gateway RX frequency is exactly the same as AT+CHS setting.**
++
++**3. Make sure SF / bandwidth setting in LG01/LG02 match the settings of AT+DR. refer [[this link>>url:http://www.dragino.com/downloads/index.php?
++dir=LoRa_Gateway/&file=LoRaWAN%201.0.3%20Regional%20Parameters.xlsx]] to see what DR means.**
++
++**4. The command AT+RX2FQ and AT+RX2DR is to let downlink work. to set the correct parameters, user can check the actually downlink parameters to be used. As below. Which shows the RX2FQ should use 868400000 and RX2DR should be 5.**
  )))
  (((
@@ -1932,26 +1932,32 @@
  [[image:1653359097980-169.png||height="188" width="729"]]
  )))
++
++=== 4.2.3 Change to Class A ===
++
++
  (((
--
--)))
++(% style="color:blue" %)**If sensor JOINED:**
++(% style="background-color:#dcdcdc" %)**AT+CLASS=A**
--=== 4.2.3 Change to Class A ===
++(% style="background-color:#dcdcdc" %)**ATZ**
++)))
--If sensor JOINED
--(% style="background-color:#dcdcdc" %)AT+CLASS=A
--ATZ
++= 5. Case Study =
++== 5.1 Counting how many objects pass in Flow Line ==
--= 5. FAQ =
++Reference Link: [[How to set up to count objects pass in flow line>>How to set up to count objects pass in flow line]]?
--== 5.1 How to upgrade the image? ==
++= 6. FAQ =
++== 6.1 How to upgrade the image? ==
++
  The LT LoRaWAN Controller is shipped with a 3.5mm cable, the cable is used to upload image to LT to:
  * Support new features
@@ -1965,12 +1965,14 @@
  (((
  (% style="color:blue" %)**Step1**(%%)**:** Download [[flash loader>>url:https://www.st.com/content/st_com/en/products/development-tools/software-development-tools/stm32-software-development-tools/stm32-programmers/flasher-stm32.html]].
--(% style="color:blue" %)**Step2**(%%)**:** Download the [[LT Image files>>url:https://www.dropbox.com/sh/g99v0fxcltn9r1y/AADKXQ2v5ZT-S3sxdmbvE7UAa/LT-22222-L/image?dl=0&subfolder_nav_tracking=1]].
++(% style="color:blue" %)**Step2**(%%)**:** Download the [[LT Image files>>https://www.dropbox.com/sh/g99v0fxcltn9r1y/AACrbrDN0AqLHbBat0ViWx5Da/LT-22222-L/Firmware?dl=0&subfolder_nav_tracking=1]].
  (% style="color:blue" %)**Step3**(%%)**:** Open flashloader; choose the correct COM port to update.
++(((
  (% style="color:blue" %)**For LT-22222-L**(%%):
  Hold down the PRO button and then momentarily press the RST reset button and the (% style="color:red" %)**DO1 led**(%%) will change from OFF to ON. When (% style="color:red" %)**DO1 LED**(%%) is on, it means the device is in download mode.
++)))
  )))
@@ -1977,23 +1977,22 @@
    [[image:image-20220524103407-12.png]]
++
  [[image:image-20220524103429-13.png]]
++
  [[image:image-20220524104033-15.png]]
  (% style="color:red" %)**Notice**(%%): In case user has lost the program cable. User can hand made one from a 3.5mm cable. The pin mapping is:
--
  [[image:1653360054704-518.png||height="186" width="745"]]
  (((
  (((
--
++== 6.2 How to change the LoRa Frequency Bands/Region? ==
--== 5.2 How to change the LoRa Frequency Bands/Region? ==
--
  )))
  )))
@@ -2005,9 +2005,8 @@
  (((
++== 6.3 How to set up LT to work with Single Channel Gateway such as LG01/LG02? ==
--== 5.3 How to set up LT to work with Single Channel Gateway such as LG01/LG02? ==
--
  )))
@@ -2021,7 +2021,6 @@
  (((
  Assume we have a LG02 working in the frequency 868400000 now , below is the step.
--
  )))
  )))
@@ -2051,16 +2051,23 @@
  )))
  (((
--(% style="background-color:#dcdcdc" %)123456 (%%)     Enter Password to have AT access.
--(% style="background-color:#dcdcdc" %)AT+FDR(%%)     Reset Parameters to Factory Default, Keys Reserve
--(% style="background-color:#dcdcdc" %)123456 (%%)     Enter Password to have AT access.
--(% style="background-color:#dcdcdc" %)AT+NJM=0 (%%)    Set to ABP mode
--(% style="background-color:#dcdcdc" %)AT+ADR=0 (%%)    Set the Adaptive Data Rate Off
--(% style="background-color:#dcdcdc" %)AT+DR=5 (%%)      Set Data Rate (Set AT+DR=3 for 915 band)
--(% style="background-color:#dcdcdc" %)AT+TDC=60000 (%%)         Set transmit interval to 60 seconds
--(% style="background-color:#dcdcdc" %)AT+CHS=868400000(%%)  Set transmit frequency to 868.4Mhz
--(% style="background-color:#dcdcdc" %)AT+DADDR=26 01 1A F1(%%)    Set Device Address to 26 01 1A F1
--(% style="background-color:#dcdcdc" %)ATZ        (%%)                              Reset MCU
++(% style="background-color:#dcdcdc" %)**123456** (%%)   :   Enter Password to have AT access.
++
++(% style="background-color:#dcdcdc" %)**AT+FDR**(%%)   :   Reset Parameters to Factory Default, Keys Reserve
++
++(% style="background-color:#dcdcdc" %)**AT+NJM=0** (%%) :   Set to ABP mode
++
++(% style="background-color:#dcdcdc" %)**AT+ADR=0** (%%)  :  Set the Adaptive Data Rate Off
++
++(% style="background-color:#dcdcdc" %)**AT+DR=5** (%%)    :   Set Data Rate (Set AT+DR=3 for 915 band)
++
++(% style="background-color:#dcdcdc" %)**AT+TDC=60000 **(%%)   :      Set transmit interval to 60 seconds
++
++(% style="background-color:#dcdcdc" %)**AT+CHS=868400000**(%%) : Set transmit frequency to 868.4Mhz
++
++(% style="background-color:#dcdcdc" %)**AT+DADDR=26 01 1A F1**(%%)  :  Set Device Address to 26 01 1A F1
++
++(% style="background-color:#dcdcdc" %)**ATZ**        (%%)                              :  Reset MCU
  )))
@@ -2071,26 +2071,29 @@
  [[image:1653360498588-932.png||height="485" width="726"]]
++== 6.4 How to change the uplink interval? ==
--== 5.4 Can I see counting event in Serial? ==
++Please see this link: [[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/How%20to%20set%20the%20transmit%20time%20interval/>>url:http://wiki.dragino.com/xwiki/bin/view/Main/How%20to%20set%20the%20transmit%20time%20interval/]]
--(((
--User can run AT+DEBUG command to see the counting event in serial. If firmware too old and doesn't support AT+DEBUG. User can update to latest firmware first.
++== 6.5 Can I see counting event in Serial? ==
--== 5.5 Can i use point to point communication for LT-22222-L? ==
++(((
++User can run AT+DEBUG command to see the counting event in serial. If firmware too old and doesn't support AT+DEBUG. User can update to latest firmware first.
--Yes, please refer [[Point to Point Communication>>doc:Main. Point to Point Communication of LT-22222-L.WebHome]]
++== 6.6 Can i use point to point communication for LT-22222-L? ==
++Yes, please refer [[Point to Point Communication>>doc:Main. Point to Point Communication of LT-22222-L.WebHome]]  ，this is [[firmware>>https://github.com/dragino/LT-22222-L/releases]].
++
  )))
  (((
--== 5.6 Why does the relay output become the default and open relay after the lt22222 is powered off? ==
++== 6.7 Why does the relay output become the default and open relay after the lt22222 is powered off? ==
  If the device is not shut down, but directly powered off.
@@ -2102,22 +2102,33 @@
  After restart, the status before power failure will be read from flash.
--== 5.7 Can i set up LT-22222-L as a NC(Normal Close) Relay? ==
++== 6.8 Can i set up LT-22222-L as a NC(Normal Close) Relay? ==
++
  LT-22222-L built-in relay is NO (Normal Open). User can use an external relay to achieve Normal Close purpose. Diagram as below:
++
  [[image:image-20221006170630-1.png||height="610" width="945"]]
++== 6.9 Can LT22222-L save RO state? ==
--= 6. Trouble Shooting =
--
++Firmware version needs to be no less than 1.6.0.
++
++
++== 6.10 Why does the LT22222 always report 15.585V when measuring AVI? ==
++
++
++It is likely that the GND is not connected during the measurement, or the wire connected to the GND is loose.
++
++
++= 7. Trouble Shooting =
  )))
  (((
  (((
--== 6.1 Downlink doesn't work, how to solve it? ==
++== 7.1 Downlink doesn't work, how to solve it? ==
  )))
@@ -2130,9 +2130,8 @@
  (((
++== 7.2 Have trouble to upload image. ==
--== 6.2 Have trouble to upload image. ==
--
  )))
@@ -2143,9 +2143,8 @@
  (((
++== 7.3 Why I can't join TTN in US915 /AU915 bands? ==
--== 6.3 Why I can't join TTN in US915 /AU915 bands? ==
--
  )))
@@ -2154,10 +2154,16 @@
  )))
++== 7.4 Why can LT22222 perform Uplink normally, but cannot receive Downlink? ==
--= 7. Order Info =
++The FCD count of the gateway is inconsistent with the FCD count of the node, causing the downlink to remain in the queue state.
++Use this command to bring their counts back together: [[Resets the downlink packet count>>||anchor="H3.4.2.23Resetsthedownlinkpacketcount"]]
++
++= 8. Order Info =
++
++
  (% style="color:#4f81bd" %)**LT-22222-L-XXX:**
  (% style="color:#4f81bd" %)**XXX:**
@@ -2172,11 +2172,9 @@
  * (% style="color:red" %)**IN865**(%%):   LT with frequency bands IN865
  * (% style="color:red" %)**CN779**(%%):  LT with frequency bands CN779
++= 9. Packing Info =
--= 8. Packing Info =
--
--
  **Package Includes**:
  * LT-22222-L I/O Controller x 1
@@ -2191,23 +2191,20 @@
  * Package Size / pcs : 14.5 x 8 x 5 cm
  * Weight / pcs : 170g
++= 10. Support =
--= 9. Support =
--
--
  * (((
  Support is provided Monday to Friday, from 09:00 to 18:00 GMT+8. Due to different timezones we cannot offer live support. However, your questions will be answered as soon as possible in the before-mentioned schedule.
  )))
  * (((
--Provide as much information as possible regarding your enquiry (product models, accurately describe your problem and steps to replicate it etc) and send a mail to [[support@dragino.com>>url:file:///D:/市场资料/说明书/LoRa/LT系列/support@dragino.com]]
++Provide as much information as possible regarding your enquiry (product models, accurately describe your problem and steps to replicate it etc) and send a mail to [[Support@dragino.cc>>mailto:Support@dragino.cc]]
--
  )))
--= 10. Reference =
++= 11. Reference =
  * LT-22222-L: [[http:~~/~~/www.dragino.com/products/lora-lorawan-end-node/item/156-lt-22222-l.html>>url:http://www.dragino.com/products/lora-lorawan-end-node/item/156-lt-22222-l.html]]

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