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

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

From 77.20 to 77.21 From 82.10 to 82.11

From version 77.21

edited by Xiaoling
on 2022/06/10 08:40

Change comment: There is no comment for this version

To version 82.10

edited by Xiaoling
on 2022/06/20 11:41

Change comment: There is no comment for this version

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@@ -19,6 +19,8 @@
  == 1.1 What is LT Series I/O Controller ==
  (((
++
++
  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.
  )))
@@ -48,6 +48,7 @@
  )))
++
  == 1.2  Specifications ==
  (((
@@ -75,8 +75,9 @@
  )))
  )))
--
  (((
++
++
  **Interface for Model: LT22222-L:**
  )))
@@ -99,8 +99,9 @@
  Power Input 7~~ 24V DC.
  )))
--
  (((
++
++
  **LoRa Spec:**
  )))
@@ -161,11 +161,11 @@
  * (((
  Packet engine up to 256 bytes with CRC.
++
++
  )))
--
--
  == 1.3 Features ==
  * LoRaWAN Class A & Class C protocol
@@ -203,7 +203,6 @@
  )))
--
  = 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.
@@ -226,12 +226,9 @@
  (((
  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.
--
--
  )))
--
  == 3.2 Example to join LoRaWAN network ==
  (((
@@ -240,12 +240,13 @@
  [[image:image-20220523172350-1.png||height="266" width="864"]]
++
  (((
  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:
  )))
  (((
--**Step 1**: Create a device in TTN with the OTAA keys from LT IO controller.
++(% style="color:blue" %)**Step 1**(%%): Create a device in TTN with the OTAA keys from LT IO controller.
  )))
  (((
@@ -254,6 +254,7 @@
  [[image:1653297924498-393.png]]
++
  Input these keys in the LoRaWAN Server portal. Below is TTN screen shot:
  Add APP EUI in the application.
@@ -267,7 +267,7 @@
  (((
--**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.
++(% 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.
  )))
  [[image:1653298044601-602.png||height="405" width="709"]]
@@ -294,6 +294,8 @@
  [[image:image-20220523174024-3.png]]
  (((
++
++
  (% style="color:#4f81bd" %)**DIDORO**(%%) is a combination for RO1, RO2, DI3, DI2, DI1, DO3, DO2 and DO1. Totally 1bytes as below
  )))
@@ -307,6 +307,7 @@
  For example if payload is: [[image:image-20220523175847-2.png]]
++
  **The value for the interface is:  **
  AVI1 channel voltage is 0x04AB/1000=1195（DEC）/1000=1.195V
@@ -322,7 +322,6 @@
  * [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;
@@ -342,6 +342,7 @@
  === 3.3.2 AT+MOD~=2, (Double DI Counting) ===
++
  **For LT-22222-L**: this mode the **DI1 and DI2** are used as counting pins.
  (((
@@ -350,6 +350,7 @@
  [[image:image-20220523180452-3.png]]
++
  (((
  (% style="color:#4f81bd" %)**DIDORO**(%%) is a combination for RO1, RO2, DO3, DO2 and DO1. Totally 1bytes as below
  )))
@@ -365,6 +365,8 @@
  )))
  (((
++
++
  **To use counting mode, please run:**
  )))
@@ -372,17 +372,14 @@
  (((
  (((
  **AT+MOD=2**
--)))
--)))
--(% class="box infomessage" %)
--(((
--(((
  **ATZ**
  )))
  )))
  (((
++
++
  (% style="color:#4f81bd" %)**AT Commands for counting:**
  )))
@@ -394,40 +394,15 @@
  (((
  (((
  **AT+TRIG1=0,100 (set DI1 port to trigger on low level, valid signal is 100ms) **
--)))
--)))
--(% class="box infomessage" %)
--(((
--(((
  **AT+TRIG1=1,100(set DI1 port to trigger on high level, valid signal is 100ms ) **
--)))
--)))
--(% class="box infomessage" %)
--(((
--(((
  **AT+TRIG2=0,100 (set DI2 port to trigger on low level, valid signal is 100ms) **
--)))
--)))
--(% class="box infomessage" %)
--(((
--(((
  **AT+TRIG2=1,100 (set DI2 port to trigger on high level, valid signal is 100ms ) **
--)))
--)))
--(% class="box infomessage" %)
--(((
--(((
  **AT+SETCNT=1,60   (Set COUNT1 value to 60)**
--)))
--)))
--(% class="box infomessage" %)
--(((
--(((
  **AT+SETCNT=2,60   (Set COUNT2 value to 60)**
  )))
  )))
@@ -462,12 +462,7 @@
  (((
  (((
  **AT+MOD=3**
--)))
--)))
--(% class="box infomessage" %)
--(((
--(((
  **ATZ**
  )))
  )))
@@ -474,8 +474,6 @@
  (((
  Other AT Commands for counting are similar to [[MOD2 Counting Command>>||anchor="H3.3.2AT2BMOD3D22C28DoubleDICounting29"]].
--
--
  )))
@@ -482,6 +482,7 @@
  === 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.
  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.
@@ -488,6 +488,7 @@
  [[image:image-20220523181903-8.png]]
++
  (((
  (% style="color:#4f81bd" %)**DIDORO **(%%)is a combination for RO1, RO2, DI3, DI2, DI1, DO3, DO2 and DO1. Totally 1bytes as below
  )))
@@ -503,6 +503,8 @@
  )))
  (((
++
++
  **To use this mode, please run:**
  )))
@@ -510,25 +510,20 @@
  (((
  (((
  **AT+MOD=4**
--)))
--)))
--(% class="box infomessage" %)
--(((
--(((
  **ATZ**
  )))
  )))
--(((
--
--)))
++
  (((
  Other AT Commands for counting are similar to [[MOD2 Counting Command>>||anchor="H3.3.2AT2BMOD3D22C28DoubleDICounting29"]].
  )))
  (((
++
++
  **Plus below command for AVI1 Counting:**
  )))
@@ -535,40 +535,27 @@
  (% class="box infomessage" %)
  (((
  (((
--**AT+SETCNT=3,60   (set AVI Count to 60)**
--)))
--)))
++(% style="color:blue" %)**AT+SETCNT=3,60**(%%)**   (set AVI Count to 60)**
--(% class="box infomessage" %)
--(((
--(((
--**AT+VOLMAX=20000   (If AVI1 voltage higher than VOLMAX (20000mV =20v), counter increase 1)**
--)))
--)))
++(% style="color:blue" %)**AT+VOLMAX=20000**(%%)**   (If AVI1 voltage higher than VOLMAX (20000mV =20v), counter increase 1)**
--(% class="box infomessage" %)
--(((
--(((
--**AT+VOLMAX=20000,0   (If AVI1 voltage lower 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)**
--(% class="box infomessage" %)
--(((
--(((
--**AT+VOLMAX=20000,1   (If AVI1 voltage higer than VOLMAX (20000mV =20v), counter increase 1)**
++(% style="color:blue" %)**AT+VOLMAX=20000,1**(%%)**   (If AVI1 voltage higer than VOLMAX (20000mV =20v), counter increase 1)**
  )))
  )))
--
  === 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]]
  (((
++
++
  (% style="color:#4f81bd" %)**DIDORO**(%%) is a combination for RO1, RO2, DI3, DI2, DI1, DO3, DO2 and DO1. Totally 1bytes as below
  )))
@@ -583,6 +583,8 @@
  )))
  (((
++
++
  **To use this mode, please run:**
  )))
@@ -590,12 +590,7 @@
  (((
  (((
  **AT+MOD=5**
--)))
--)))
--(% class="box infomessage" %)
--(((
--(((
  **ATZ**
  )))
  )))
@@ -602,8 +602,6 @@
  (((
  Other AT Commands for counting are similar to [[MOD2 Counting Command>>||anchor="H3.3.2AT2BMOD3D22C28DoubleDICounting29"]].
--
--
  )))
@@ -610,6 +610,7 @@
  === 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.**
  For example, if user has configured below commands:
@@ -622,7 +622,7 @@
 . Periodically uplink (Base on TDC time). Payload is same as the normal MOD (MOD 1 for above command). This uplink uses LoRaWAN (% style="color:#4f81bd" %)**unconfirmed**(%%) data type
 . Trigger uplink when meet the trigger condition. LT will sent two packets in this case, the first uplink use payload specify in this mod (mod=6), the second packets use the normal mod payload(MOD=1 for above settings). Both Uplinks use LoRaWAN (% style="color:#4f81bd" %)**CONFIRMED data type.**
--**AT Command to set Trigger Condition**:
++(% style="color:#037691" %)**AT Command to set Trigger Condition**:
  (% style="color:#4f81bd" %)**Trigger base on voltage**:
@@ -635,6 +635,7 @@
  AT+AVLIM=5000,0,0,0   (If AVI1 voltage lower than 5V , trigger uplink, 0 means ignore)
++
  (% style="color:#4f81bd" %)**Trigger base on current**:
  Format: AT+ACLIM=<AC1_LIMIT_LOW>,< AC1_LIMIT_HIGH>,<AC2_LIMIT_LOW>,< AC2_LIMIT_HIGH>
@@ -644,6 +644,7 @@
  AT+ACLIM=10000,15000,0,0   (If ACI1 voltage lower than 10mA or higher than 15mA, trigger an uplink)
++
  (% style="color:#4f81bd" %)**Trigger base on DI status**:
  DI status trigger Flag.
@@ -650,12 +650,13 @@
  Format: AT+DTRI=<DI1_TIRGGER_FlAG>,< DI2_TIRGGER_FlAG >
++
  **Example:**
  AT+ DTRI =1,0   (Enable DI1 trigger / disable DI2 trigger)
--**Downlink Command to set Trigger Condition**
++(% style="color:#037691" %)**Downlink Command to set Trigger Condition:**
  Type Code: 0xAA. Downlink command same as AT Command **AT+AVLIM, AT+ACLIM**
@@ -673,14 +673,18 @@
    Yy4 yy4: AC2 or AV2 high limit.
++
  **Example1**: AA 00 13 88 00 00 00 00 00 00
  Same as AT+AVLIM=5000,0,0,0   (If AVI1 voltage lower than 5V , trigger uplink, 0 means ignore)
++
  **Example2**: AA 02 01 00
  Same as AT+ DTRI =1,0  (Enable DI1 trigger / disable DI2 trigger)
++
++
  (% style="color:#4f81bd" %)**Trigger Settings Payload Explanation:**
  MOD6 Payload : total 11 bytes payload
@@ -687,6 +687,7 @@
  [[image:image-20220524085923-1.png]]
++
  (% 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]]
@@ -735,6 +735,8 @@
  === 3.3.7 Payload Decoder ===
  (((
++
++
  **Decoder for TTN/loraserver/ChirpStack**: [[http:~~/~~/www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/Payload_decoder/>>url:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/Payload_decoder/]]
@@ -741,7 +741,6 @@
  )))
--
  == 3.4 Configure LT via AT or Downlink ==
  User can configure LT I/O Controller via AT Commands or LoRaWAN Downlink Commands
@@ -768,7 +768,7 @@
  Set device uplink interval.
--* AT Command:
++* (% style="color:#037691" %)**AT Command:**
  (% class="box infomessage" %)
  (((
@@ -777,8 +777,9 @@
  **Example: **AT+TDC=30000. Means set interval to 30 seconds
--* Downlink Payload (prefix 0x01):
++* (% style="color:#037691" %)**Downlink Payload (prefix 0x01):**
++
  (% class="box infomessage" %)
  (((
  **0x01 aa bb cc     ~/~/ Same as AT+TDC=0x(aa bb cc)**
@@ -790,7 +790,7 @@
  Set work mode.
--* AT Command:
++* (% style="color:#037691" %)**AT Command:**
  (% class="box infomessage" %)
  (((
@@ -799,8 +799,9 @@
  **Example**: AT+MOD=2. Set work mode to Double DI counting mode
--* Downlink Payload (prefix 0x0A):
++* (% style="color:#037691" %)**Downlink Payload (prefix 0x0A):**
++
  (% class="box infomessage" %)
  (((
  **0x0A aa     ~/~/ Same as AT+MOD=aa**
@@ -810,12 +810,13 @@
  ==== 3.4.2.3 Poll an uplink ====
--* AT Command:
++* (% style="color:#037691" %)AT Command:
  There is no AT Command to poll uplink
--* Downlink Payload (prefix 0x08):
++* (% style="color:#037691" %)Downlink Payload (prefix 0x08):
++
  (% class="box infomessage" %)
  (((
  **0x08 FF     ~/~/ Poll an uplink,**
@@ -829,7 +829,7 @@
  Use of trigger mode, please check [[ADDMOD6>>||anchor="H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29"]]
--* AT Command:
++* (% style="color:#037691" %)AT Command:
  (% class="box infomessage" %)
  (((
@@ -840,8 +840,9 @@
 : Disable Trigger Mode
--* Downlink Payload (prefix 0x0A 06):
++* (% style="color:#037691" %)Downlink Payload (prefix 0x0A 06):
++
  (% class="box infomessage" %)
  (((
  **0x0A 06 aa     ~/~/ Same as AT+ADDMOD6=aa,**
@@ -848,16 +848,18 @@
  )))
++
  ==== 3.4.2.5 Poll trigger settings ====
  Poll trigger settings,
--* AT Command:
++* (% style="color:#037691" %)AT Command:
  There is no AT Command for this feature.
--* Downlink Payload (prefix 0x AB 06):
++* (% style="color:#037691" %)Downlink Payload (prefix 0x AB 06):
++
  (% class="box infomessage" %)
  (((
  **0xAB 06  ~/~/ Poll trigger settings, device will uplink trigger settings once receive this command**
@@ -864,11 +864,12 @@
  )))
++
  ==== 3.4.2.6 Enable / Disable DI1/DI2/DI3 as trigger ====
  Enable Disable DI1/DI2/DI2 as trigger,
--* AT Command:
++* (% style="color:#037691" %)AT Command:
  (% class="box infomessage" %)
  (((
@@ -875,11 +875,12 @@
  **Format: AT+DTRI=<DI1_TIRGGER_FlAG>,< DI2_TIRGGER_FlAG >**
  )))
++
  **Example:**
  AT+ DTRI =1,0   (Enable DI1 trigger / disable DI2 trigger)
--* Downlink Payload (prefix 0xAA 02):
++* (% style="color:#037691" %)Downlink Payload (prefix 0xAA 02):
  (% class="box infomessage" %)
  (((
@@ -887,11 +887,12 @@
  )))
++
  ==== 3.4.2.7 Trigger1 – Set DI1 or DI3 as trigger ====
  Set DI1 or DI3(for LT-33222-L) trigger.
--* AT Command:
++* (% style="color:#037691" %)AT Command:
  (% class="box infomessage" %)
  (((
@@ -902,12 +902,14 @@
  b : delay timing.
++
  **Example:**
  AT+TRIG1=1,100(set DI1 port to trigger on high level, valid signal is 100ms )
--* Downlink Payload (prefix 0x09 01 ):
++* (% style="color:#037691" %)Downlink Payload (prefix 0x09 01 ):
++
  (% class="box infomessage" %)
  (((
  **0x09 01 aa bb cc ~/~/ same as AT+TRIG1=aa,0x(bb cc)**
@@ -914,11 +914,12 @@
  )))
++
  ==== 3.4.2.8 Trigger2 – Set DI2 as trigger ====
  Set DI2 trigger.
--* AT Command:
++* (% style="color:#037691" %)AT Command:
  (% class="box infomessage" %)
  (((
@@ -929,12 +929,14 @@
  b : delay timing.
++
  **Example:**
  AT+TRIG2=0,100(set DI1 port to trigger on low level, valid signal is 100ms )
--* Downlink Payload (prefix 0x09 02 ):
++* (% style="color:#037691" %)Downlink Payload (prefix 0x09 02 ):
++
  (% class="box infomessage" %)
  (((
  **0x09 02 aa bb cc ~/~/ same as AT+TRIG1=aa,0x(bb cc)**
@@ -941,11 +941,12 @@
  )))
++
  ==== 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"]]
--* AT Command:
++* (% style="color:#037691" %)AT Command:
  (% class="box infomessage" %)
  (((
@@ -952,8 +952,9 @@
  **AT+ACLIM. **
  )))
--* Downlink Payload (prefix 0xAA 01 ):
++* (% style="color:#037691" %)Downlink Payload (prefix 0xAA 01 ):
++
  (% class="box infomessage" %)
  (((
  **0x AA 01 aa bb cc dd ee ff gg hh ~/~/ same as AT+ACLIM See [[trigger mode>>||anchor="H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29"]]**
@@ -960,11 +960,12 @@
  )))
++
  ==== 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"]]
--* AT Command:
++* (% style="color:#037691" %)AT Command:
  (% class="box infomessage" %)
  (((
@@ -971,8 +971,9 @@
  **AT+AVLIM. See [[trigger mode>>||anchor="H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29"]]**
  )))
--* Downlink Payload (prefix 0xAA 00 ):
++* (% style="color:#037691" %)Downlink Payload (prefix 0xAA 00 ):
++
  (% class="box infomessage" %)
  (((
  **0x AA 00 aa bb cc dd ee ff gg hh ~/~/ same as AT+AVLIM See [[trigger mode>>||anchor="H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29"]] **
@@ -979,11 +979,12 @@
  )))
++
  ==== 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.
--* AT Command:
++* (% style="color:#037691" %)AT Command:
  (% class="box infomessage" %)
  (((
@@ -990,8 +990,9 @@
  **AT+ATDC=5. Device won’t response the second trigger within 5 minute after the first trigger.**
  )))
--* Downlink Payload (prefix 0xAC ):
++* (% style="color:#037691" %)Downlink Payload (prefix 0xAC ):
++
  (% class="box infomessage" %)
  (((
  **0x AC aa bb ~/~/ same as AT+ATDC=0x(aa bb)   . Unit (min)**
@@ -998,14 +998,16 @@
  )))
++
  ==== 3.4.2.12 DO ~-~- Control Digital Output DO1/DO2/DO3 ====
--* AT Command:
++* (% style="color:#037691" %)AT Command:
  There is no AT Command to control Digital Output
--* Downlink Payload (prefix 0x02):
++* (% style="color:#037691" %)Downlink Payload (prefix 0x02):
++
  (% class="box infomessage" %)
  (((
  **0x02 aa bb cc     ~/~/ Set DO1/DO2/DO3 output**
@@ -1030,14 +1030,16 @@
  )))
++
  ==== 3.4.2.13 DO ~-~- Control Digital Output DO1/DO2/DO3 with time control ====
--* AT Command:
++* (% style="color:#037691" %)AT Command:
  There is no AT Command to control Digital Output
--* Downlink Payload (prefix 0xA9):
++* (% style="color:#037691" %)Downlink Payload (prefix 0xA9):
++
  (% class="box infomessage" %)
  (((
  (((
@@ -1055,18 +1055,22 @@
 : DO pins will change to an inverter state after timeout
++
  (% style="color:#4f81bd" %)**Third Byte**(%%): Control Method and Ports status:
  [[image:image-20220524093238-6.png]]
++
  (% style="color:#4f81bd" %)**Fourth Byte**(%%): Control Method and Ports status:
  [[image:image-20220524093328-7.png]]
++
  (% style="color:#4f81bd" %)**Fifth Byte**(%%): Control Method and Ports status:
  [[image:image-20220524093351-8.png]]
++
  (% style="color:#4f81bd" %)**Sixth and Seventh Byte**:
           Latching time. Unit: ms
@@ -1073,6 +1073,7 @@
  Device will upload a packet if downlink code executes successfully.
++
  **Example payload:**
  **~1. A9 01 01 01 01 07 D0**
@@ -1092,14 +1092,16 @@
  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
--=== 3.4.2.14 Relay ~-~- Control Relay Output RO1/RO2 ===
--* AT Command:
++==== 3.4.2.14 Relay ~-~- Control Relay Output RO1/RO2 ====
++* (% style="color:#037691" %)AT Command:
++
  There is no AT Command to control Relay Output
--* Downlink Payload (prefix 0x03):
++* (% style="color:#037691" %)Downlink Payload (prefix 0x03):
++
  (% class="box infomessage" %)
  (((
  **0x03 aa bb     ~/~/ Set RO1/RO2 output**
@@ -1120,14 +1120,16 @@
  Device will upload a packet if downlink code executes successfully.
++
  ==== 3.4.2.15 Relay ~-~- Control Relay Output RO1/RO2 with time control ====
--* AT Command:
++* (% style="color:#037691" %)AT Command:
  There is no AT Command to control Relay Output
--* Downlink Payload (prefix 0x05):
++* (% style="color:#037691" %)Downlink Payload (prefix 0x05):
++
  (% class="box infomessage" %)
  (((
  **0x05 aa bb cc dd     ~/~/ Set RO1/RO2 relay with time control:**
@@ -1143,14 +1143,17 @@
 : Relays will change to an inverter state after timeout
++
  (% style="color:#4f81bd" %)**Third Byte(bb)**(%%): Control Method and Ports status:
  [[image:image-20220524093831-10.png]]
++
  (% style="color:#4f81bd" %)**Fourth/Fifth Bytes(cc)**(%%): Latching time. Unit: ms
  Device will upload a packet if downlink code executes successfully.
++
  **Example payload:**
  **~1. 05 01 11 07 D0**
@@ -1170,11 +1170,12 @@
  Relay 1 & relay2 will change to NC, last 2 seconds, then both change to NO.
++
  ==== 3.4.2.16 Counting ~-~- Voltage threshold counting ====
  When voltage exceed the threshold, count. Feature see [[MOD4>>||anchor="H3.3.4AT2BMOD3D42CSingleDICounting2B1xVoltageCounting"]]
--* AT Command:
++* (% style="color:#037691" %)AT Command:
  (% class="box infomessage" %)
  (((
@@ -1181,8 +1181,9 @@
  **AT+VOLMAX    ~/~/ See [[MOD4>>||anchor="H3.3.4AT2BMOD3D42CSingleDICounting2B1xVoltageCounting"]]**
  )))
--* Downlink Payload (prefix 0xA5):
++* (% style="color:#037691" %)Downlink Payload (prefix 0xA5):
++
  (% class="box infomessage" %)
  (((
  **0xA5 aa bb cc   ~/~/ Same as AT+VOLMAX=(aa bb),cc**
@@ -1189,9 +1189,10 @@
  )))
++
  ==== 3.4.2.17 Counting ~-~- Pre-configure the Count Number ====
--* AT Command:
++* (% style="color:#037691" %)AT Command:
  (% class="box infomessage" %)
  (((
@@ -1206,8 +1206,9 @@
  Bb cc dd ee: number to be set
--* Downlink Payload (prefix 0xA8):
++* (% style="color:#037691" %)Downlink Payload (prefix 0xA8):
++
  (% class="box infomessage" %)
  (((
  **0x A8 aa bb cc dd ee     ~/~/ same as AT+SETCNT=aa,(bb cc dd ee)**
@@ -1214,11 +1214,12 @@
  )))
++
  ==== 3.4.2.18 Counting ~-~- Clear Counting ====
  Clear counting for counting mode
--* AT Command:
++* (% style="color:#037691" %)AT Command:
  (% class="box infomessage" %)
  (((
@@ -1225,7 +1225,7 @@
  **AT+CLRCOUNT  ~/~/ clear all counting**
  )))
--* Downlink Payload (prefix 0xA6):
++* (% style="color:#037691" %)Downlink Payload (prefix 0xA6):
  (% class="box infomessage" %)
  (((
@@ -1233,9 +1233,10 @@
  )))
++
  ==== 3.4.2.19 Counting ~-~- Change counting mode save time ====
--* AT Command:
++* (% style="color:#037691" %)AT Command:
  (% class="box infomessage" %)
  (((
@@ -1242,7 +1242,7 @@
  **AT+COUTIME=60  ~/~/ Set save time to 60 seconds. Device will save the counting result in internal flash every 60 seconds. (min value: 30)**
  )))
--* Downlink Payload (prefix 0xA7):
++* (% style="color:#037691" %)Downlink Payload (prefix 0xA7):
  (% class="box infomessage" %)
  (((
@@ -1255,16 +1255,17 @@
  )))
++
  == 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:
  (((
--**Step 1**: Be sure that your device is programmed and properly connected to the network at this time.
++(% style="color:blue" %)**Step 1**(%%): Be sure that your device is programmed and properly connected to the network at this time.
  )))
  (((
--**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:
++(% 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:
  )))
  [[image:1653356737703-362.png||height="232" width="732"]]
@@ -1271,12 +1271,13 @@
  [[image:image-20220524094641-11.png||height="390" width="723"]]
++
  [[image:image-20220524094641-12.png||height="402" width="718"]]
--**Step 3**: Create an account or log in Mydevices.
++(% style="color:blue" %)**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" %)
++(% style="color:blue" %)**Step 4**(%%): Search LT-22222-L(for both LT-22222-L / LT-33222-L) and add DevEUI.(% style="display:none" %)
  Search under The things network
@@ -1283,19 +1283,25 @@
  [[image:1653356838789-523.png||height="337" width="740"]]
++
  After added, the sensor data arrive TTN, it will also arrive and show in Mydevices.
  [[image:image-20220524094909-1.png||height="335" width="729"]]
++
  [[image:image-20220524094909-2.png||height="337" width="729"]]
++
  [[image:image-20220524094909-3.png||height="338" width="727"]]
++
  [[image:image-20220524094909-4.png||height="339" width="728"]](% style="display:none" %)
++
  [[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 ) ===
@@ -1305,6 +1305,7 @@
  [[image:1653356991268-289.png]]
++
  === 3.6.2 Digital Input Port: DI1/DI2 ( For LT-22222-L) ===
  (((
@@ -1330,7 +1330,7 @@
  )))
  (((
--**Example1**: Connect to a Low active sensor.
++(% style="color:blue" %)**Example1**(%%): Connect to a Low active sensor.
  )))
  (((
@@ -1361,7 +1361,7 @@
  )))
  (((
--**Example2**: Connect to a High active sensor.
++(% style="color:blue" %)**Example2**(%%): Connect to a High active sensor.
  )))
  (((
@@ -1392,7 +1392,7 @@
  )))
  (((
--**Example3**: Connect to a 220v high active sensor.
++(% style="color:blue" %)**Example3**(%%): Connect to a 220v high active sensor.
  )))
  (((
@@ -1419,6 +1419,7 @@
  )))
++
  === 3.6.3 Digital Output Port: DO1/DO2 /DO3 ===
  NPN output: GND or Float. Max voltage can apply to output pin is 36v.
@@ -1426,12 +1426,14 @@
  [[image:1653357531600-905.png]]
++
  === 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:
--**AC2 = (IN2 voltage )/12**
++(% style="color:blue" %)**AC2 = (IN2 voltage )/12**
++
  [[image:1653357592296-182.png]]
  Example to connect a 4~~20mA sensor
@@ -1438,22 +1438,24 @@
  We take the wind speed sensor as an example for reference only.
--Specifications of the wind speed sensor:
--Red:12~~24v
++**Specifications of the wind speed sensor:**
--Yellow:4~~20mA
++Red:      12~~24v
--Black:GND
++Yellow:  4~~20mA
++Black:   GND
--Connection diagram:
++**Connection diagram:**
++
  [[image:1653357640609-758.png]]
  [[image:1653357648330-671.png||height="155" width="733"]]
++
  === 3.6.5 Relay Output ===
  (((
@@ -1465,6 +1465,7 @@
  [[image:image-20220524100215-10.png||height="382" width="723"]]
++
  == 3.7 LEDs Indicators ==
  [[image:image-20220524100748-11.png]]
@@ -1478,6 +1478,7 @@
  [[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:
  )))
@@ -1484,6 +1484,7 @@
  [[image:1653358355238-883.png]]
++
  (((
  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/]]
  )))
@@ -1674,12 +1674,16 @@
  )))
++
++
  == 4.2 Common AT Command Sequence ==
  === 4.2.1 Multi-channel ABP mode (Use with SX1301/LG308) ===
  (((
--If device has not joined network yet:
++
++
++**If device has not joined network yet:**
  )))
  (((
@@ -1704,7 +1704,7 @@
  (((
--If device already joined network:
++**If device already joined network:**
  )))
  (((
@@ -1717,10 +1717,14 @@
  )))
++
++
  === 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.
  )))
  (((
@@ -1728,7 +1728,7 @@
  )))
  (((
--(% style="background-color:#dcdcdc" %) 123456(%%)   Enter Password to have AT access.
++(% style="background-color:#dcdcdc" %) 123456(%%)     Enter Password to have AT access.
  )))
  (((
@@ -1736,39 +1736,41 @@
  )))
  (((
--(% 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
++
++
  )))
  (((
@@ -1790,6 +1790,7 @@
  )))
++
  === 4.2.3 Change to Class A ===
  If sensor JOINED
@@ -1801,19 +1801,25 @@
  == 5.1 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
  * For bug fix
  * Change LoRaWAN bands.
++
  Below shows the hardware connection for how to upload an image to the LT:
--* [[image:1653359603330-121.png]]
++[[image:1653359603330-121.png]]
++
++
  (((
--**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]].
--**Step2**: Download the [[LT Image files>>url:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/image/]].
--**Step3: **Open flashloader; choose the correct COM port to update.
--**For LT-22222-L**:
++(% 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:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/image/]].
++(% 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 **DO1 led** will change from OFF to ON. When **DO1 LED** is on, it means the device is in download mode.
  )))
@@ -1823,6 +1823,7 @@
  [[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"]]
@@ -1830,6 +1830,8 @@
  (((
  (((
++
++
  == 5.2 How to change the LoRa Frequency Bands/Region? ==
  )))
  )))
@@ -1836,11 +1836,11 @@
  (((
  User can follow the introduction for [[how to upgrade image>>||anchor="H5.1Howtoupgradetheimage3F"]]. When download the images, choose the required image file for download.
--
--
  )))
  (((
++
++
  == 5.3 How to set up LT to work with Single Channel Gateway such as LG01/LG02? ==
  )))
@@ -1853,6 +1853,8 @@
  (((
  (((
  Assume we have a LG02 working in the frequency 868400000 now , below is the step.
++
++
  )))
  )))
@@ -1868,23 +1868,25 @@
  (% style="color:red" %)Note: user just need to make sure above three keys match, User can change either in TTN or Device to make then match. In TTN, NETSKEY and APPSKEY can be configured by user in setting page, but Device Addr is generated by TTN.
  )))
++
  (((
  (% style="color:#4f81bd" %)**Step2**(%%)**: **Run AT Command to make LT work in Single frequency & ABP mode. Below is the AT commands:
  )))
  (((
--(% 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" %)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
  )))
++
  (((
  As shown in below:
  )))
@@ -1901,11 +1901,19 @@
  == 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]]
--
--
  )))
  (((
++== 5.6 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.
++
++It will default that this is a power-off state.
++
++In modes 2 to 5, DO RO status and pulse count are saved in flash.
++
++After restart, the status before power failure will be read from flash.
++
  = 6. Trouble Shooting =
  )))
@@ -1917,11 +1917,11 @@
  (((
  Please see this link for how to debug: [[LoRaWAN Communication Debug>>doc:Main.LoRaWAN Communication Debug.WebHome||anchor="H5.1Howitwork"]]
--
--
  )))
  (((
++
++
  == 6.2 Have trouble to upload image. ==
  )))
@@ -1931,9 +1931,7 @@
  (((
--)))
--(((
  == 6.3 Why I can’t join TTN in US915 /AU915 bands? ==
  )))
@@ -1941,147 +1941,55 @@
  It might be about the channels mapping. [[Please see this link for detail>>doc:Main.LoRaWAN Communication Debug.WebHome||anchor="H2.NoticeofUS9152FCN4702FAU915Frequencyband"]]
  )))
--(((
--
--)))
--(((
++
  = 7. Order Info =
--)))
--(((
--(((
++
  (% style="color:#4f81bd" %)**LT-22222-L-XXX:**
--)))
--)))
--(((
--(((
++
  (% style="color:#4f81bd" %)**XXX:**
--)))
--)))
--(((
--* (((
--(% style="color:#4f81bd" %)**EU433**(%%): LT with frequency bands EU433
--)))
--)))
++* (% style="color:#4f81bd" %)**EU433**(%%): LT with frequency bands EU433
++* (% style="color:#4f81bd" %)**EU868**(%%): LT with frequency bands EU868
++* (% style="color:#4f81bd" %)**KR920**(%%): LT with frequency bands KR920
++* (% style="color:#4f81bd" %)**CN470**(%%): LT with frequency bands CN470
++* (% style="color:#4f81bd" %)**AS923**(%%): LT with frequency bands AS923
++* (% style="color:#4f81bd" %)**AU915**(%%): LT with frequency bands AU915
++* (% style="color:#4f81bd" %)**US915**(%%): LT with frequency bands US915
++* (% style="color:#4f81bd" %)**IN865**(%%): LT with frequency bands IN865
++* (% style="color:#4f81bd" %)**CN779**(%%): LT with frequency bands CN779
--(((
--* (((
--(% style="color:#4f81bd" %)**EU868**(%%): LT with frequency bands EU868
--)))
--)))
--
--(((
--* (((
--(% style="color:#4f81bd" %)**KR920**(%%): LT with frequency bands KR920
--)))
--)))
--
--(((
--* (((
--(% style="color:#4f81bd" %)**CN470**(%%): LT with frequency bands CN470
--)))
--)))
--
--(((
--* (((
--(% style="color:#4f81bd" %)**AS923**(%%): LT with frequency bands AS923
--)))
--)))
--
--(((
--* (((
--(% style="color:#4f81bd" %)**AU915**(%%): LT with frequency bands AU915
--)))
--)))
--
--(((
--* (((
--(% style="color:#4f81bd" %)**US915**(%%): LT with frequency bands US915
--)))
--)))
--
--(((
--* (((
--(% style="color:#4f81bd" %)**IN865**(%%): LT with frequency bands IN865
--)))
--)))
--
--(((
--* (((
--(% style="color:#4f81bd" %)**CN779**(%%): LT with frequency bands CN779
--
--
--)))
--
  = 8. Packing Info =
--)))
--(((
--(((
++
  **Package Includes**:
--)))
--)))
--(((
--(((
  * LT-22222-L I/O Controller x 1
  * Stick Antenna for LoRa RF part x 1
  * Bracket for controller x1
  * Program cable x 1
--)))
--)))
--(((
--(((
  **Dimension and weight**:
--)))
--)))
--(((
--(((
  * Device Size: 13.5 x 7 x 3 cm
  * Device Weight: 105g
  * Package Size / pcs : 14.5 x 8 x 5 cm
  * Weight / pcs : 170g
--
--)))
--)))
--
--(((
  = 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
++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]]
  )))
--)))
--(((
--(((
--         [[support@dragino.com>>url:file:///D:/市场资料/说明书/LoRa/LT系列/support@dragino.com]]
--
--
--)))
--
--(((
  = 10. Reference =
--* Product Page:
--
--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]]
--
++* 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]]
  * [[Image Download>>url:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/image/]]
  * [[AT Command Manual>>url:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/]]
  * [[Hardware Source>>url:https://github.com/dragino/Lora/tree/master/LT/LT-33222-L/v1.0]]
--)))
--)))

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