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

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

From 75.4 to 75.5 From 77.31 to 77.32

From version 75.5

edited by Xiaoling
on 2022/05/31 11:40

Change comment: There is no comment for this version

To version 77.31

edited by Xiaoling
on 2022/06/10 08:43

Change comment: There is no comment for this version

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  = 1.Introduction =
  == 1.1 What is LT Series I/O Controller ==
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--The Dragino LT series I/O Modules are Long Range LoRaWAN I/O Controller. It contains different I/O Interfaces such as: analog current Input, analog voltage input, relay output, digital input and digital output etc. The LT I/O Modules are designed to simplify the installation of I/O monitoring.
++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.
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--The LT I/O Controllers is aiming to provide a simple plug and play, low cost installation by using LoRaWAN wireless technology.
++The LT I/O Controllers is aiming to provide an (% style="color:blue" %)**easy and low cost installation** (%%)by using LoRa wireless technology.
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  == 1.2  Specifications ==
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  **Hardware System:**
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  **Interface for Model: LT22222-L:**
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  Power Input 7~~ 24V DC.
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  **LoRa Spec:**
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  == 1.3 Features ==
  * LoRaWAN Class A & Class C protocol
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  * Firmware upgradable via program port
  * Counting
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  == 1.4  Applications ==
  * Smart Buildings & Home Automation
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  * Smart Cities
  * Smart Factory
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  == 1.5 Hardware Variants ==
  (% border="1" style="background-color:#f7faff; width:500px" %)
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  * 1 x Counting Port
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  = 2. Power ON Device =
  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.
@@ -200,6 +200,7 @@
  [[image:1653297104069-180.png]]
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  = 3. Operation Mode =
  == 3.1 How it works? ==
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  == 3.2 Example to join LoRaWAN network ==
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  [[image:1653298044601-602.png||height="405" width="709"]]
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  == 3.3 Uplink Payload ==
  There are five working modes + one interrupt mode on LT for different type application:
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  * **MOD5**: Single DI Counting + 2 x AVI + 1 x ACI + DO + RO
  * **ADDMOD6**: Trigger Mode, Optional, used together with MOD1 ~~ MOD5
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  === 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.
@@ -301,6 +301,7 @@
  * [1] RO1 relay channel is close and the RO1 LED is ON.
  * [0] RO2 relay channel is open and RO2 LED is OFF;
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  **LT22222-L:**
  * [1] DI2 channel is high input and DI2 LED is ON;
@@ -316,6 +316,8 @@
  ** DO1 is high in case there is load between DO1 and V+.
  ** DO1 LED is off in both case
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  === 3.3.2 AT+MOD~=2, (Double DI Counting) ===
  **For LT-22222-L**: this mode the **DI1 and DI2** are used as counting pins.
@@ -409,6 +409,7 @@
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  === 3.3.3 AT+MOD~=3, Single DI Counting + 2 x ACI ===
  **LT22222-L**: This mode the DI1 is used as a counting pin.
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  === 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.
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  === 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.
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  === 3.3.6 AT+ADDMOD~=6. (Trigger Mode, Optional) ===
  (% style="color:#4f81bd" %)**This mode is an optional mode for trigger purpose. It can run together with other mode.**
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  AT+AVLIM=5000,0,0,0   (If AVI1 voltage lower than 5V , trigger uplink, 0 means ignore)
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  (% style="color:#4f81bd" %)**Trigger base on current**:
  Format: AT+ACLIM=<AC1_LIMIT_LOW>,< AC1_LIMIT_HIGH>,<AC2_LIMIT_LOW>,< AC2_LIMIT_HIGH>
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  AT+ACLIM=10000,15000,0,0   (If ACI1 voltage lower than 10mA or higher than 15mA, trigger an uplink)
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  (% style="color:#4f81bd" %)**Trigger base on DI status**:
  DI status trigger Flag.
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  When device got this command, it will send the MOD6 payload.
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  === 3.3.7 Payload Decoder ===
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  == 3.4 Configure LT via AT or Downlink ==
  User can configure LT I/O Controller via AT Commands or LoRaWAN Downlink Commands
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  There are two kinds of Commands:
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--* (% 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: http:~/~/wiki.dragino.com/index.php?title=End_Device_AT_Commands_and_Downlink_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:#4f81bd" %)**Sensor Related Commands**(%%): These commands are special designed for LT-22222-L.  User can see these commands below:
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  === 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]]
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  === 3.4.2 Sensor related commands ===
  ==== 3.4.2.1 Set Transmit Interval ====
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  ==== 3.4.2.2 Set Work Mode (AT+MOD) ====
  Set work mode.
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  ==== 3.4.2.3 Poll an uplink ====
  * AT Command:
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  **Example**: 0x08FF, ask device to send an Uplink
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  ==== 3.4.2.4 Enable Trigger Mode ====
--Use of trigger mode, please check [[ADDMOD6>>path:http://8.211.40.43:8080/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/#H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29]]
++Use of trigger mode, please check [[ADDMOD6>>||anchor="H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29"]]
  * AT Command:
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  ==== 3.4.2.5 Poll trigger settings ====
  Poll trigger settings,
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  ==== 3.4.2.6 Enable / Disable DI1/DI2/DI3 as trigger ====
  Enable Disable DI1/DI2/DI2 as trigger,
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  ==== 3.4.2.7 Trigger1 – Set DI1 or DI3 as trigger ====
  Set DI1 or DI3(for LT-33222-L) trigger.
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  ==== 3.4.2.8 Trigger2 – Set DI2 as trigger ====
  Set DI2 trigger.
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  ==== 3.4.2.9 Trigger – Set AC (current) as trigger ====
--Set current trigger , base on AC port. See [[trigger mode>>path:http://8.211.40.43:8080/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/#H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29]]
++Set current trigger , base on AC port. See [[trigger mode>>||anchor="H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29"]]
  * AT Command:
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  (% class="box infomessage" %)
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--**0x AA 01 aa bb cc dd ee ff gg hh ~/~/ same as AT+ACLIM See [[trigger mode>>url:http://8.211.40.43:8080/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/#H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29]]**
++**0x AA 01 aa bb cc dd ee ff gg hh ~/~/ same as AT+ACLIM See [[trigger mode>>||anchor="H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29"]]**
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  ==== 3.4.2.10 Trigger – Set AV (voltage) as trigger ====
--Set current trigger , base on AV port. See [[trigger mode>>url:http://8.211.40.43:8080/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/#H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29]]
++Set current trigger , base on AV port. See [[trigger mode>>||anchor="H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29"]]
  * AT Command:
  (% class="box infomessage" %)
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--**AT+AVLIM. See [[trigger mode>>url:http://8.211.40.43:8080/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/#H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29]]**
++**AT+AVLIM. See [[trigger mode>>||anchor="H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29"]]**
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  * Downlink Payload (prefix 0xAA 00 ):
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  (% class="box infomessage" %)
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--**0x AA 00 aa bb cc dd ee ff gg hh ~/~/ same as AT+AVLIM See [[trigger mode>>url:http://8.211.40.43:8080/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/#H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29]] **
++**0x AA 00 aa bb cc dd ee ff gg hh ~/~/ same as AT+AVLIM See [[trigger mode>>||anchor="H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29"]] **
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  ==== 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.
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  ==== 3.4.2.12 DO ~-~- Control Digital Output DO1/DO2/DO3 ====
  * AT Command:
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  ==== 3.4.2.13 DO ~-~- Control Digital Output DO1/DO2/DO3 with time control ====
  * AT Command:
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  DO1 pin no action, DO2 pin set low, DO3 pin set high, last 2 seconds, then DO1 pin no action, DO2 pin set high, DO3 pin set low
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  === 3.4.2.14 Relay ~-~- Control Relay Output RO1/RO2 ===
  * AT Command:
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  Device will upload a packet if downlink code executes successfully.
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  ==== 3.4.2.15 Relay ~-~- Control Relay Output RO1/RO2 with time control ====
  * AT Command:
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  Relay 1 & relay2 will change to NC, last 2 seconds, then both change to NO.
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  ==== 3.4.2.16 Counting ~-~- Voltage threshold counting ====
--When voltage exceed the threshold, count. Feature see [[MOD4>>path:http://8.211.40.43:8080/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/#H3.3.4AT2BMOD3D42CSingleDICounting2B1xVoltageCounting]]
++When voltage exceed the threshold, count. Feature see [[MOD4>>||anchor="H3.3.4AT2BMOD3D42CSingleDICounting2B1xVoltageCounting"]]
  * AT Command:
  (% class="box infomessage" %)
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--**AT+VOLMAX    ~/~/ See [[MOD4>>path:http://8.211.40.43:8080/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/#H3.3.4AT2BMOD3D42CSingleDICounting2B1xVoltageCounting]]**
++**AT+VOLMAX    ~/~/ See [[MOD4>>||anchor="H3.3.4AT2BMOD3D42CSingleDICounting2B1xVoltageCounting"]]**
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  * Downlink Payload (prefix 0xA5):
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  ==== 3.4.2.17 Counting ~-~- Pre-configure the Count Number ====
  * AT Command:
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  ==== 3.4.2.18 Counting ~-~- Clear Counting ====
  Clear counting for counting mode
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  ==== 3.4.2.19 Counting ~-~- Change counting mode save time ====
  * AT Command:
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  == 3.5 Integrate with Mydevice ==
  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:
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  [[image:image-20220524094641-12.png||height="402" width="718"]]
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  **Step 3**: Create an account or log in Mydevices.
  **Step 4**: Search LT-22222-L(for both LT-22222-L / LT-33222-L) and add DevEUI.(% style="display:none" %)
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  [[image:image-20220524094909-5.png||height="341" width="734"]]
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  == 3.6 Interface Detail ==
  === 3.6.1 Digital Input Port: DI1/DI2 /DI3 ( For LT-33222-L, low active ) ===
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  [[image:1653356991268-289.png]]
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  === 3.6.2 Digital Input Port: DI1/DI2 ( For LT-22222-L) ===
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  === 3.6.3 Digital Output Port: DO1/DO2 /DO3 ===
  NPN output: GND or Float. Max voltage can apply to output pin is 36v.
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  [[image:1653357531600-905.png]]
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  === 3.6.4 Analog Input Interface ===
  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:
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  [[image:1653357648330-671.png||height="155" width="733"]]
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  === 3.6.5 Relay Output ===
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  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.
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++== 5.5 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]]
++
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