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

Last modified by Saxer Lin on 2025/04/15 17:24

From version < 109.2 >

edited by Xiaoling
on 2022/11/21 11:37

To version < 102.2 >

edited by Xiaoling
on 2022/10/29 09:42

Change comment: There is no comment for this version

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@@ -64,7 +64,7 @@
  )))
  * (((
--STM32L072xxxx MCU
++STM32L072CZT6 MCU
  )))
  * (((
  SX1276/78 Wireless Chip
@@ -188,6 +188,7 @@
++
  == 1.4  Applications ==
@@ -200,6 +200,7 @@
++
  == 1.5 Hardware Variants ==
@@ -216,6 +216,7 @@
++
  = 2. Power ON Device =
@@ -232,8 +232,10 @@
  [[image:1653297104069-180.png]]
++
  = 3. Operation Mode =
++
  == 3.1 How it works? ==
@@ -246,6 +246,7 @@
  )))
++
  == 3.2 Example to join LoRaWAN network ==
@@ -312,6 +312,7 @@
++
  === 3.3.1 AT+MOD~=1, 2ACI+2AVI ===
@@ -370,6 +370,7 @@
++
  === 3.3.2 AT+MOD~=2, (Double DI Counting) ===
@@ -443,6 +443,7 @@
  )))
++
  === 3.3.3 AT+MOD~=3, Single DI Counting + 2 x ACI ===
@@ -489,6 +489,7 @@
  )))
++
  === 3.3.4 AT+MOD~=4, Single DI Counting + 1 x Voltage Counting ===
@@ -557,6 +557,7 @@
  )))
++
  === 3.3.5 AT+MOD~=5, Single DI Counting + 2 x AVI + 1 x ACI ===
@@ -604,6 +604,7 @@
  )))
++
  === 3.3.6 AT+ADDMOD~=6. (Trigger Mode, Optional) ===
@@ -743,6 +743,7 @@
  When device got this command, it will send the MOD6 payload.
++
  === 3.3.7 Payload Decoder ===
  (((
@@ -752,6 +752,7 @@
  )))
++
  == 3.4 Configure LT via AT or Downlink ==
@@ -779,8 +779,10 @@
  )))
++
  === 3.4.2 Sensor related commands ===
++
  ==== 3.4.2.1 Set Transmit Interval ====
@@ -788,7 +788,7 @@
  * (% style="color:#037691" %)**AT Command:**
--(% style="color:blue" %)**AT+TDC=N **
++**(% style="color:blue" %)AT+TDC=N **
  **Example: **AT+TDC=30000. Means set interval to 30 seconds
@@ -796,10 +796,11 @@
  * (% style="color:#037691" %)**Downlink Payload (prefix 0x01):**
--(% style="color:blue" %)**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) ====
@@ -807,7 +807,7 @@
  * (% style="color:#037691" %)**AT Command:**
--(% style="color:blue" %)**AT+MOD=N  **
++**(% style="color:blue" %)AT+MOD=N  **
  **Example**: AT+MOD=2. Set work mode to Double DI counting mode
@@ -815,10 +815,11 @@
  * (% style="color:#037691" %)**Downlink Payload (prefix 0x0A):**
--(% style="color:blue" %)**0x0A aa  **(%%)**  ** ~/~/ Same as AT+MOD=aa
++**(% style="color:blue" %)0x0A aa  (%%)  ** ~/~/ Same as AT+MOD=aa
++
  ==== 3.4.2.3 Poll an uplink ====
@@ -829,7 +829,7 @@
  * (% style="color:#037691" %)**Downlink Payload (prefix 0x08):**
--(% style="color:blue" %)**0x08 FF  **(%%)**   **~/~/ Poll an uplink
++**(% style="color:blue" %)0x08 FF  (%%)   **~/~/ Poll an uplink
  **Example**: 0x08FF, ask device to send an Uplink
@@ -836,6 +836,7 @@
++
  ==== 3.4.2.4 Enable Trigger Mode ====
@@ -843,16 +843,16 @@
  * (% style="color:#037691" %)**AT Command:**
--(% style="color:blue" %)**AT+ADDMOD6=1 or 0**
++**(% style="color:blue" %)AT+ADDMOD6=1 or 0**
--(% style="color:red" %)**1:** (%%)Enable Trigger Mode
++**(% style="color:red" %)1:** Enable Trigger Mode
--(% style="color:red" %)**0: **(%%)Disable Trigger Mode
++**(% style="color:red" %)0: **Disable Trigger Mode
  * (% style="color:#037691" %)**Downlink Payload (prefix 0x0A 06):**
--(% style="color:blue" %)**0x0A 06 aa    **(%%)    ~/~/ Same as AT+ADDMOD6=aa
++**(% style="color:blue" %)0x0A 06 aa    **(%%)    ~/~/ Same as AT+ADDMOD6=aa
@@ -869,10 +869,11 @@
  * (% style="color:#037691" %)**Downlink Payload (prefix 0x AB 06):**
--(% style="color:blue" %)**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 ====
@@ -880,7 +880,7 @@
  * (% 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:**
@@ -889,10 +889,11 @@
  * (% style="color:#037691" %)**Downlink Payload (prefix 0xAA 02):**
--(% style="color:blue" %)**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 ====
@@ -900,11 +900,11 @@
  * (% style="color:#037691" %)**AT Command:**
--(% style="color:blue" %)**AT+TRIG1=a,b**
++**(% style="color:blue" %)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:**
@@ -913,11 +913,8 @@
  * (% 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 ====
@@ -925,13 +925,14 @@
  * (% 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).
++b : delay timing.
++
  **Example:**
  AT+TRIG2=0,100(set DI1 port to trigger on low level, valid signal is 100ms )
@@ -939,10 +939,11 @@
  * (% style="color:#037691" %)**Downlink Payload (prefix 0x09 02 ):**
--(% style="color:blue" %)**0x09 02 aa bb cc   **  (%%)~/~/ same as AT+TRIG1=aa,0x(bb cc)
++**0x09 02 aa bb cc           **~/~/ same as AT+TRIG1=aa,0x(bb cc)
++
  ==== 3.4.2.9 Trigger – Set AC (current) as trigger ====
@@ -950,15 +950,16 @@
  * (% style="color:#037691" %)**AT Command**
--(% style="color:blue" %)**AT+ACLIM**
++**AT+ACLIM**
  * (% style="color:#037691" %)**Downlink Payload (prefix 0xAA 01 )**
--(% 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"]]
++**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 ====
@@ -966,15 +966,16 @@
  * (% 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 )**
--(% 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"]]
++**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 ====
@@ -982,12 +982,12 @@
  * (% 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 )**
--(% style="color:blue" %)**0x AC aa bb   **(%%) ~/~/ same as AT+ATDC=0x(aa bb)   . Unit (min)
++**0x AC aa bb   ** ~/~/ same as AT+ATDC=0x(aa bb)   . Unit (min)
  (((
@@ -997,6 +997,7 @@
++
  ==== 3.4.2.12 DO ~-~- Control Digital Output DO1/DO2/DO3 ====
@@ -1006,7 +1006,7 @@
  * (% style="color:#037691" %)**Downlink Payload (prefix 0x02)**
--* (% style="color:blue" %)**0x02 aa bb cc     ** (%%)~/~/ Set DO1/DO2/DO3 output
++* **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.
@@ -1028,6 +1028,7 @@
++
  ==== 3.4.2.13 DO ~-~- Control Digital Output DO1/DO2/DO3 with time control ====
@@ -1038,7 +1038,7 @@
  * (% style="color:#037691" %)**Downlink Payload (prefix 0xA9)**
--(% style="color:blue" %)**0xA9 aa bb cc     **(%%) ~/~/ Set DO1/DO2/DO3 output with time control
++**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:
@@ -1071,13 +1071,6 @@
           Latching time. Unit: ms
--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.**
@@ -1101,6 +1101,7 @@
++
  ==== 3.4.2.14 Relay ~-~- Control Relay Output RO1/RO2 ====
@@ -1111,7 +1111,7 @@
  * (% style="color:#037691" %)**Downlink Payload (prefix 0x03):**
--(% style="color:blue" %)**0x03 aa bb     ** (%%)~/~/ Set RO1/RO2 output
++**0x03 aa bb     **~/~/ Set RO1/RO2 output
  (((
@@ -1141,7 +1141,7 @@
  * (% style="color:#037691" %)**Downlink Payload (prefix 0x05):**
--(% style="color:blue" %)**0x05 aa bb cc dd     ** (%%)~/~/ Set RO1/RO2 relay with time control
++**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:
@@ -1162,13 +1162,6 @@
  (% style="color:#4f81bd" %)**Fourth/Fifth/Sixth/Seventh Bytes(cc)**(%%): Latching time. Unit: ms
--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.**
@@ -1199,33 +1199,39 @@
  * (% 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):**
--(% style="color:blue" %)**0xA5 aa bb cc   ** (%%)~/~/ Same as AT+VOLMAX=(aa bb),cc
++**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: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):**
--(% style="color:blue" %)**0x A8 aa bb cc dd ee     ** (%%)~/~/ same as AT+SETCNT=aa,(bb cc dd ee)
++**0x A8 aa bb cc dd ee     **~/~/ same as AT+SETCNT=aa,(bb cc dd ee)
++
  ==== 3.4.2.18 Counting ~-~- Clear Counting ====
@@ -1233,79 +1233,87 @@
  * (% 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):**
--(% style="color:blue" %)**0x A6 01    ** (%%)~/~/ clear all counting
++**0x A6 01    ** ~/~/ clear all counting
++
  ==== 3.4.2.19 Counting ~-~- Change counting mode save time ====
  * (% style="color:#037691" %)**AT Command:**
--(% 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)
++**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):**
--(% style="color:blue" %)**0x A7 aa bb cc     ** (%%)~/~/ same as AT+COUTIME =aa bb cc,
++**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:**
--(% style="color:blue" %)**AT+RODORESET=1    **(%%)~/~/ RODO will close when the device joining the network. (default)
++**AT+RODORET=1  **~/~/ RODO will close when the device joining the network. (default)
--(% 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.
++**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:#037691" %)**Downlink Payload (prefix 0xAD):**
--(% style="color:blue" %)**0x AD aa      ** (%%)~/~/ same as AT+RODORET =aa
++**0x AD aa      **~/~/ same as AT+RODORET =aa
++(((
++
++
  ==== 3.4.2.21 Encrypted payload ====
  * (% style="color:#037691" %)**AT Command:**
--(% style="color:blue" %)**AT+DECRYPT=1  **   (%%)~/~/ The payload is uploaded without encryption
++**AT+DECRYPT=1  **~/~/ The payload is uploaded without encryption
--(% style="color:blue" %)**AT+DECRYPT=0    **(%%)~/~/  Encrypt when uploading payload (default)
++**AT+DECRYPT=0  **~/~/Encrypt when uploading payload (default)
++
  ==== 3.4.2.22 Get sensor value ====
  * (% style="color:#037691" %)**AT Command:**
--(% style="color:blue" %)**AT+GETSENSORVALUE=0    **(%%)~/~/ The serial port gets the reading of the current sensor
++**AT+GETSENSORVALUE=0  **~/~/ The serial port gets the reading of the current sensor
--(% style="color:blue" %)**AT+GETSENSORVALUE=1    **(%%)~/~/ The serial port gets the current sensor reading and uploads it.
++**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:**
--(% 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=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=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.
++**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.
@@ -1315,14 +1315,14 @@
  * (% style="color:#037691" %)**AT Command:**
--(% 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=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=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.
++       **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 **(%%)**:**
--(% style="color:blue" %)**0x21 00 01 **   (%%)      ~/~/ Set  the DISMACANS=1
++**0x21 00 01 **         ~/~/ Set  the DISMACANS=1
@@ -1332,7 +1332,7 @@
  * (% style="color:#037691" %)**AT Command**(%%)**:**
--(% 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.
++       **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.
@@ -1355,7 +1355,7 @@
  * (((
  (% style="color:#037691" %)**Downlink Payload**(%%)**:**
--(% style="color:blue" %)**26 01  ** (%%)  ~/~/  Downlink 26 01 can query device upload frequency, frequency band, software version number, TDC time.
++**26 01  **   ~/~/  Downlink 26 01 can query device upload frequency, frequency band, software version number, TDC time.
  )))
@@ -1365,6 +1365,9 @@
  [[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 Integrate with Mydevice ==
@@ -1414,8 +1414,10 @@
  [[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 ) ===
@@ -1424,6 +1424,7 @@
  [[image:1653356991268-289.png]]
++
  === 3.6.2 Digital Input Port: DI1/DI2 ( For LT-22222-L) ===
@@ -1545,16 +1545,16 @@
  )))
++
  === 3.6.3 Digital Output Port: DO1/DO2 /DO3 ===
--**NPN output**: GND or Float. Max voltage can apply to output pin is 36v.
++NPN output: GND or Float. Max voltage can apply to output pin is 36v.
--Note: DO pins go to float when device is power off.
--
  [[image:1653357531600-905.png]]
++
  === 3.6.4 Analog Input Interface ===
@@ -1586,13 +1586,12 @@
  [[image:1653357648330-671.png||height="155" width="733"]]
++
  === 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:
--
--**Note**: RO pins go to Open(NO) when device is power off.
++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:
  )))
  [[image:image-20220524100215-9.png]]
@@ -1601,6 +1601,7 @@
  [[image:image-20220524100215-10.png||height="382" width="723"]]
++
  == 3.7 LEDs Indicators ==
@@ -1610,6 +1610,7 @@
  = 4. Use AT Command =
++
  == 4.1 Access AT Command ==
@@ -1820,8 +1820,10 @@
  )))
++
  == 4.2 Common AT Command Sequence ==
++
  === 4.2.1 Multi-channel ABP mode (Use with SX1301/LG308) ===
  (((
@@ -1866,6 +1866,7 @@
  )))
++
  === 4.2.2 Single-channel ABP mode (Use with LG01/LG02) ===
  (((
@@ -1956,7 +1956,7 @@
  (((
--(% style="color:blue" %)**If sensor JOINED:**
++(% style="color:blue" %)If sensor JOINED:
  (% style="background-color:#dcdcdc" %)**AT+CLASS=A
  ATZ**
@@ -1963,8 +1963,10 @@
  )))
++
  = 5. FAQ =
++
  == 5.1 How to upgrade the image? ==
@@ -2008,6 +2008,8 @@
  (((
  (((
++
++
  == 5.2 How to change the LoRa Frequency Bands/Region? ==
@@ -2021,6 +2021,7 @@
  (((
++
  == 5.3 How to set up LT to work with Single Channel Gateway such as LG01/LG02? ==
@@ -2036,6 +2036,7 @@
  (((
  Assume we have a LG02 working in the frequency 868400000 now , below is the step.
++
  )))
  )))
@@ -2084,6 +2084,7 @@
  [[image:1653360498588-932.png||height="485" width="726"]]
++
  == 5.4 Can I see counting event in Serial? ==
@@ -2091,11 +2091,13 @@
  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.
++
  == 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]]  ，this is [[firmware>>https://github.com/dragino/LT-22222-L/releases]].
++Yes, please refer [[Point to Point Communication>>doc:Main. Point to Point Communication of LT-22222-L.WebHome]]  ，this is [[firmware>>https://www.dropbox.com/sh/g99v0fxcltn9r1y/AADKXQ2v5ZT-S3sxdmbvE7UAa/LT-22222-L/image?dl=0&subfolder_nav_tracking=1]].
++
  )))
@@ -2112,6 +2112,7 @@
  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? ==
@@ -2121,13 +2121,10 @@
  [[image:image-20221006170630-1.png||height="610" width="945"]]
--== 5.8 Can LT22222-L save RO state? ==
--
--Firmware version needs to be no less than 1.6.0.
--
--
  = 6. Trouble Shooting =
++
++
  )))
  (((
@@ -2145,6 +2145,7 @@
  (((
++
  == 6.2 Have trouble to upload image. ==
@@ -2157,6 +2157,7 @@
  (((
++
  == 6.3 Why I can't join TTN in US915 /AU915 bands? ==
@@ -2167,6 +2167,7 @@
  )))
++
  = 7. Order Info =
@@ -2184,8 +2184,6 @@
  * (% style="color:red" %)**IN865**(%%):   LT with frequency bands IN865
  * (% style="color:red" %)**CN779**(%%):  LT with frequency bands CN779
--
--
  = 8. Packing Info =
@@ -2203,8 +2203,6 @@
  * Package Size / pcs : 14.5 x 8 x 5 cm
  * Weight / pcs : 170g
--
--
  = 9. Support =
@@ -2215,6 +2215,7 @@
  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]]
++
  )))

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