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 < 83.13 >

edited by Xiaoling
on 2022/06/29 17:56

To version < 82.13 >

edited by Xiaoling
on 2022/06/20 11:46

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@@ -1,6 +1,7 @@
  (% style="text-align:center" %)
  [[image:image-20220523163353-1.jpeg||height="604" width="500"]]
++**LT-22222-L LoRa IO Controller User Manual **
  **Table of Contents:**
@@ -166,6 +166,7 @@
  Packet engine up to 256 bytes with CRC.
++
  )))
@@ -179,6 +179,8 @@
  * Firmware upgradable via program port
  * Counting
++
++
  == 1.4  Applications ==
  * Smart Buildings & Home Automation
@@ -188,6 +188,8 @@
  * Smart Cities
  * Smart Factory
++
++
  == 1.5 Hardware Variants ==
  (% border="1" style="background-color:#f7faff; width:500px" %)
@@ -201,6 +201,7 @@
  * 1 x Counting Port
  )))
++
  = 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.
@@ -218,11 +218,11 @@
  == 3.1 How it works? ==
  (((
--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.
++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 **TX LED** will fast blink 5 times, LT-22222-L will enter working mode and start to JOIN LoRaWAN network. **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.
++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.
  )))
@@ -274,14 +274,15 @@
  There are five working modes + one interrupt mode on LT for different type application:
--* (% 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
++* **MOD1**: (default setting): 2 x ACI + 2AVI + DI + DO + RO
++* **MOD2**: Double DI Counting + DO + RO
++* **MOD3**: Single DI Counting + 2 x ACI + DO + RO
++* **MOD4**: Single DI Counting + 1 x Voltage Counting + DO + RO
++* **MOD5**: Single DI Counting + 2 x AVI + 1 x ACI + DO + RO
++* **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.
@@ -320,7 +320,6 @@
  * [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;
@@ -337,6 +337,7 @@
  ** DO1 LED is off in both case
++
  === 3.3.2 AT+MOD~=2, (Double DI Counting) ===
@@ -386,20 +386,24 @@
  (((
  **For LT22222-L:**
++)))
++(% class="box infomessage" %)
++(((
++(((
++**AT+TRIG1=0,100 (set DI1 port to trigger on low level, valid signal is 100ms) **
--(% style="color:blue" %)**AT+TRIG1=0,100**(%%)**    (set DI1 port to trigger on low level, valid signal is 100ms) **
++**AT+TRIG1=1,100(set DI1 port to trigger on high level, valid signal is 100ms ) **
--(% style="color:blue" %)**AT+TRIG1=1,100**(%%)**    (set DI1 port to trigger on high level, valid signal is 100ms ) **
++**AT+TRIG2=0,100 (set DI2 port to trigger on low level, valid signal is 100ms) **
--(% style="color:blue" %)**AT+TRIG2=0,100**(%%)**    (set DI2 port to trigger on low level, valid signal is 100ms) **
++**AT+TRIG2=1,100 (set DI2 port to trigger on high level, valid signal is 100ms ) **
--(% style="color:blue" %)**AT+TRIG2=1,100**(%%)**    (set DI2 port to trigger on high level, valid signal is 100ms ) **
++**AT+SETCNT=1,60   (Set 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)**
++**AT+SETCNT=2,60   (Set COUNT2 value to 60)**
  )))
++)))
@@ -410,8 +410,6 @@
  [[image:image-20220523181246-5.png]]
  (((
--
--
  (% style="color:#4f81bd" %)**DIDORO**(%%) is a combination for RO1, RO2, DI3, DI2, DI1, DO3, DO2 and DO1. Totally 1bytes as below
  )))
@@ -425,7 +425,6 @@
  (% style="color:red" %)Note: DO3 is not valid for LT-22222-L.
  )))
--
  (((
  **To use counting mode, please run:**
  )))
@@ -494,19 +494,22 @@
  **Plus below command for AVI1 Counting:**
++)))
++(% class="box infomessage" %)
++(((
++(((
++(% 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**(%%)**       (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)**
--(% style="color:blue" %)**AT+VOLMAX=20000,0**(%%)**    (If AVI1 voltage lower 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)**
++(% 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 ===
@@ -558,8 +558,8 @@
  For example, if user has configured below commands:
--* **AT+MOD=1 **            **~-~->**   The normal working mode
--* **AT+ADDMOD6=1**   **~-~->**   Enable trigger
++* **AT+MOD=1 **  **~-~->** The normal working mode
++* **AT+ADDMOD6=1**   **~-~->** Enable trigger
  LT will keep monitoring AV1/AV2/AC1/AC2 every 5 seconds; LT will send uplink packets in two cases:
@@ -568,7 +568,6 @@
  (% style="color:#037691" %)**AT Command to set Trigger Condition**:
--
  (% style="color:#4f81bd" %)**Trigger base on voltage**:
  Format: AT+AVLIM=<AV1_LIMIT_LOW>,< AV1_LIMIT_HIGH>,<AV2_LIMIT_LOW>,< AV2_LIMIT_HIGH>
@@ -709,6 +709,7 @@
  * (% style="color:#4f81bd" %)**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]]
@@ -717,7 +717,6 @@
  === 3.4.2 Sensor related commands ===
--
  ==== 3.4.2.1 Set Transmit Interval ====
  Set device uplink interval.
@@ -724,19 +724,23 @@
  * (% style="color:#037691" %)**AT Command:**
++(% class="box infomessage" %)
++(((
  **AT+TDC=N **
++)))
--
  **Example: **AT+TDC=30000. Means set interval to 30 seconds
  * (% style="color:#037691" %)**Downlink Payload (prefix 0x01):**
++(% class="box infomessage" %)
++(((
  **0x01 aa bb cc     ~/~/ Same as AT+TDC=0x(aa bb cc)**
++)))
--
  ==== 3.4.2.2 Set Work Mode (AT+MOD) ====
  Set work mode.
@@ -743,42 +743,51 @@
  * (% style="color:#037691" %)**AT Command:**
++(% class="box infomessage" %)
++(((
  **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
++(% class="box infomessage" %)
++(((
++**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
--* (% style="color:#037691" %)**Downlink Payload (prefix 0x08):**
++* (% style="color:#037691" %)Downlink Payload (prefix 0x08):
--**0x08 FF     **~/~/ Poll an uplink
++(% class="box infomessage" %)
++(((
++**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:
++(% class="box infomessage" %)
++(((
  **AT+ADDMOD6=1 or 0**
++)))
 : Enable Trigger Mode
@@ -785,36 +785,43 @@
 : Disable Trigger Mode
--* (% style="color:#037691" %)**Downlink Payload (prefix 0x0A 06):**
++* (% style="color:#037691" %)Downlink Payload (prefix 0x0A 06):
--**0x0A 06 aa    ** ~/~/ Same as AT+ADDMOD6=aa
++(% class="box infomessage" %)
++(((
++**0x0A 06 aa     ~/~/ Same as AT+ADDMOD6=aa,**
++)))
--
  ==== 3.4.2.5 Poll trigger settings ====
  Poll trigger settings,
--* (% style="color:#037691" %)**AT Command:**
++* (% style="color:#037691" %)AT Command:
  There is no AT Command for this feature.
--* (% style="color:#037691" %)**Downlink Payload (prefix 0x AB 06):**
++* (% style="color:#037691" %)Downlink Payload (prefix 0x AB 06):
--**0xAB 06         **~/~/ Poll trigger settings, device will uplink trigger settings once receive this command
++(% class="box infomessage" %)
++(((
++**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:
++(% class="box infomessage" %)
++(((
  **Format: AT+DTRI=<DI1_TIRGGER_FlAG>,< DI2_TIRGGER_FlAG >**
++)))
  **Example:**
@@ -821,20 +821,25 @@
  AT+ DTRI =1,0   (Enable DI1 trigger / disable DI2 trigger)
--* (% style="color:#037691" %)**Downlink Payload (prefix 0xAA 02):**
++* (% style="color:#037691" %)Downlink Payload (prefix 0xAA 02):
--**0xAA 02 aa bb        **~/~/ Same as AT+DTRI=aa,bb
++(% class="box infomessage" %)
++(((
++**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:
++(% class="box infomessage" %)
++(((
  **AT+TRIG1=a,b**
++)))
  a : Interrupt mode. 0: falling edge; 1: rising edge, 2: falling and raising edge(for MOD=1).
@@ -846,18 +846,26 @@
  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:#037691" %)Downlink Payload (prefix 0x09 01 ):
++(% class="box infomessage" %)
++(((
++**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:
++(% class="box infomessage" %)
++(((
  **AT+TRIG2=a,b**
++)))
--
  a : Interrupt mode. 0: falling edge; 1: rising edge, 2: falling and raising edge(for MOD=1).
  b : delay timing.
@@ -868,78 +868,93 @@
  AT+TRIG2=0,100(set DI1 port to trigger on low level, valid signal is 100ms )
--* (% style="color:#037691" %)**Downlink Payload (prefix 0x09 02 ):**
++* (% style="color:#037691" %)Downlink Payload (prefix 0x09 02 ):
--**0x09 02 aa bb cc           **~/~/ same as AT+TRIG1=aa,0x(bb cc)
++(% class="box infomessage" %)
++(((
++**0x09 02 aa bb cc ~/~/ same as AT+TRIG1=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:
--**AT+ACLIM**
++(% class="box infomessage" %)
++(((
++**AT+ACLIM. **
++)))
--* (% style="color:#037691" %)**Downlink Payload (prefix 0xAA 01 )**
++* (% 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"]]
++(% 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"]]**
++)))
--
  ==== 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:
--**AT+AVLIM            See [[trigger mode>>||anchor="H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29"]]**
++(% class="box infomessage" %)
++(((
++**AT+AVLIM. See [[trigger mode>>||anchor="H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29"]]**
++)))
--* (% style="color:#037691" %)**Downlink Payload (prefix 0xAA 00 )**
++* (% 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"]]
++(% 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"]] **
++)))
--
  ==== 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.
++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:
--**AT+ATDC=5        ** Device won't response the second trigger within 5 minute after the first trigger.
++(% class="box infomessage" %)
++(((
++**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:#037691" %)Downlink Payload (prefix 0xAC ):
--**0x AC aa bb   ** ~/~/ same as AT+ATDC=0x(aa bb)   . Unit (min)
--
++(% class="box infomessage" %)
  (((
--
--
--(% style="color:red" %)Note: ATDC setting must be more than 5min
++**0x AC aa bb ~/~/ same as AT+ATDC=0x(aa bb)   . Unit (min)**
  )))
--
  ==== 3.4.2.12 DO ~-~- Control Digital Output DO1/DO2/DO3 ====
--* (% style="color:#037691" %)**AT Command**
++* (% style="color:#037691" %)AT Command:
  There is no AT Command to control Digital Output
--* (% style="color:#037691" %)**Downlink Payload (prefix 0x02)**
--* **0x02 aa bb cc     **~/~/ Set DO1/DO2/DO3 output
++* (% style="color:#037691" %)Downlink Payload (prefix 0x02):
++(% class="box infomessage" %)
  (((
++**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.
  )))
@@ -959,19 +959,22 @@
--
  ==== 3.4.2.13 DO ~-~- Control Digital Output DO1/DO2/DO3 with time control ====
--* (% style="color:#037691" %)**AT Command**
++* (% style="color:#037691" %)AT Command:
  There is no AT Command to control Digital Output
--* (% style="color:#037691" %)**Downlink Payload (prefix 0xA9)**
++* (% style="color:#037691" %)Downlink Payload (prefix 0xA9):
--**0xA9 aa bb cc     **~/~/ Set DO1/DO2/DO3 output with time control
++(% class="box infomessage" %)
++(((
++(((
++**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:
  (% style="color:#4f81bd" %)**First Byte**(%%)**:** Type code (0xA9)
@@ -1025,19 +1025,20 @@
--
  ==== 3.4.2.14 Relay ~-~- Control Relay Output RO1/RO2 ====
--* (% style="color:#037691" %)**AT Command:**
++* (% style="color:#037691" %)AT Command:
  There is no AT Command to control Relay Output
--* (% style="color:#037691" %)**Downlink Payload (prefix 0x03):**
++* (% style="color:#037691" %)Downlink Payload (prefix 0x03):
--**0x03 aa bb     **~/~/ Set RO1/RO2 output
++(% class="box infomessage" %)
++(((
++**0x03 aa bb     ~/~/ Set RO1/RO2 output**
++)))
--
  (((
  If payload = 0x030100, it means set RO1 to close and RO2 to open.
  )))
@@ -1054,19 +1054,20 @@
--
  ==== 3.4.2.15 Relay ~-~- Control Relay Output RO1/RO2 with time control ====
--* (% style="color:#037691" %)**AT Command:**
++* (% style="color:#037691" %)AT Command:
  There is no AT Command to control Relay Output
--* (% style="color:#037691" %)**Downlink Payload (prefix 0x05):**
++* (% style="color:#037691" %)Downlink Payload (prefix 0x05):
--**0x05 aa bb cc dd     **~/~/ Set RO1/RO2 relay with time control
++(% class="box infomessage" %)
++(((
++**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:
  (% style="color:#4f81bd" %)**First Byte **(%%)**:** Type code (0x05)
@@ -1108,7 +1108,6 @@
--
  ==== 3.4.2.16 Counting ~-~- Voltage threshold counting ====
  When voltage exceed the threshold, count. Feature see [[MOD4>>||anchor="H3.3.4AT2BMOD3D42CSingleDICounting2B1xVoltageCounting"]]
@@ -1115,7 +1115,7 @@
  * (% style="color:#037691" %)**AT Command:**
--**AT+VOLMAX   ** ~/~/ See [[MOD4>>||anchor="H3.3.4AT2BMOD3D42CSingleDICounting2B1xVoltageCounting"]]
++(% style="color:#037691" %)****(%%)**AT+VOLMAX   ** ~/~/ See [[MOD4>>||anchor="H3.3.4AT2BMOD3D42CSingleDICounting2B1xVoltageCounting"]]
  * (% style="color:#037691" %)**Downlink Payload (prefix 0xA5):**
@@ -1124,12 +1124,11 @@
--
  ==== 3.4.2.17 Counting ~-~- Pre-configure the Count Number ====
  * (% style="color:#037691" %)**AT Command:**
--**AT+SETCNT=aa,(bb cc dd ee) **
++(% style="color:#037691" %)****(%%)**AT+SETCNT=aa,(bb cc dd ee) **
  aa: 1: Set count1,
@@ -1146,7 +1146,6 @@
--
  ==== 3.4.2.18 Counting ~-~- Clear Counting ====
  Clear counting for counting mode
@@ -1153,7 +1153,7 @@
  * (% style="color:#037691" %)**AT Command:**
--**AT+CLRCOUNT ** ~/~/ clear all counting
++(% style="color:#037691" %)(%%)**AT+CLRCOUNT ** ~/~/ clear all counting
  * (% style="color:#037691" %)**Downlink Payload (prefix 0xA6):**
@@ -1162,7 +1162,6 @@
--
  ==== 3.4.2.19 Counting ~-~- Change counting mode save time ====
  * (% style="color:#037691" %)**AT Command:**
@@ -1181,7 +1181,6 @@
  )))
--
  == 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:
@@ -1411,7 +1411,6 @@
  [[image:image-20220524100748-11.png]]
--
  = 4. Use AT Command =
  == 4.1 Access AT Command ==
@@ -1614,6 +1614,8 @@
  (((
  AT+CFG: Print all settings
++
++
  )))
@@ -1659,6 +1659,8 @@
  (((
  (% style="background-color:#dcdcdc" %)ATZ
++
++
  )))
@@ -1771,7 +1771,7 @@
  (% 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.
++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.
  )))
    [[image:image-20220524103407-12.png]]
@@ -1865,8 +1865,6 @@
  == 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]]
--
--
  )))
  (((
@@ -1880,13 +1880,12 @@
  After restart, the status before power failure will be read from flash.
--
  = 6. Trouble Shooting =
  )))
  (((
  (((
--== 6.1 Downlink doesn't work, how to solve it? ==
++== 6.1 Downlink doesn’t work, how to solve it? ==
  )))
  )))
@@ -1907,7 +1907,7 @@
  (((
--== 6.3 Why I can't join TTN in US915 /AU915 bands? ==
++== 6.3 Why I can’t join TTN in US915 /AU915 bands? ==
  )))
  (((
@@ -1915,28 +1915,25 @@
  )))
++
  = 7. Order Info =
  (% style="color:#4f81bd" %)**LT-22222-L-XXX:**
++
  (% style="color:#4f81bd" %)**XXX:**
--* (% style="color:red" %)**EU433**(%%): LT with frequency bands EU433
--* (% style="color:red" %)**EU868**(%%): LT with frequency bands EU868
--* (% style="color:red" %)**KR920**(%%): LT with frequency bands KR920
--* (% style="color:red" %)**CN470**(%%): LT with frequency bands CN470
--* (% style="color:red" %)**AS923**(%%): LT with frequency bands AS923
--* (% style="color:red" %)**AU915**(%%): LT with frequency bands AU915
--* (% style="color:red" %)**US915**(%%): LT with frequency bands US915
--* (% style="color:red" %)**IN865**(%%): LT with frequency bands IN865
--* (% style="color:red" %)**CN779**(%%): LT with frequency bands CN779
++* (% 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
--
--
--
--
--
  = 8. Packing Info =
@@ -1954,11 +1954,6 @@
  * Package Size / pcs : 14.5 x 8 x 5 cm
  * Weight / pcs : 170g
--
--
--
--
--
  = 9. Support =
  * (((
@@ -1968,11 +1968,6 @@
  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]]
  )))
--
--
--
--
--
  = 10. 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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