Changes for page SN50v3-LB/LS -- LoRaWAN Sensor Node User Manual

Last modified by Bei Jinggeng on 2025/01/10 15:51

From version < 43.38 >

edited by Xiaoling
on 2023/05/16 14:52

To version < 43.51 >

edited by Xiaoling
on 2023/05/16 15:51

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@@ -30,6 +30,7 @@
  == 1.2 Features ==
++
  * LoRaWAN 1.0.3 Class A
  * Ultra-low power consumption
  * Open-Source hardware/software
@@ -295,7 +295,7 @@
  In this mode, uplink payload includes in total 11 bytes. Uplink packets use FPORT=2.
  (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %)
--|(% style="width:50px;background-color:#D9E2F3;color:#0070C0" %)**Size(bytes)**|(% style="width:20px;background-color:#D9E2F3;color:#0070C0" %)**2**|(% style="width:100px;background-color:#D9E2F3;color:#0070C0" %)**2**|(% style="width:40px;background-color:#D9E2F3;color:#0070C0" %)**2**|(% style="width:90px;background-color:#D9E2F3;color:#0070C0" %)**1**|(% style="width:130px;background-color:#D9E2F3;color:#0070C0" %)**2**|(% style="width:90px;background-color:#D9E2F3;color:#0070C0" %)**2**
++|(% style="background-color:#d9e2f3; color:#0070c0; width:50px" %)**Size(bytes)**|(% style="background-color:#d9e2f3; color:#0070c0; width:20px" %)**2**|(% style="background-color:#d9e2f3; color:#0070c0; width:100px" %)**2**|(% style="background-color:#d9e2f3; color:#0070c0; width:40px" %)**2**|(% style="background-color:#d9e2f3; color:#0070c0; width:90px" %)**1**|(% style="background-color:#d9e2f3; color:#0070c0; width:130px" %)**2**|(% style="background-color:#d9e2f3; color:#0070c0; width:90px" %)**2**
  |**Value**|Bat|(% style="width:191px" %)(((
  Temperature(DS18B20)(PC13)
  )))|(% style="width:78px" %)(((
@@ -311,12 +311,14 @@
  [[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-20220627150949-6.png?rev=1.1||alt="image-20220627150949-6.png"]]
++
  ==== 2.3.2.2  MOD~=2 (Distance Mode) ====
++
  This mode is target to measure the distance. The payload of this mode is totally 11 bytes. The 8^^th^^ and 9^^th^^ bytes is for the distance.
  (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %)
--|(% style="width:40px;background-color:#D9E2F3;color:#0070C0" %)**Size(bytes)**|(% style="width:40px;background-color:#D9E2F3;color:#0070C0" %)**2**|(% style="width:110px;background-color:#D9E2F3;color:#0070C0" %)**2**|(% style="width:40px;background-color:#D9E2F3;color:#0070C0" %)**2**|(% style="width:110px;background-color:#D9E2F3;color:#0070C0" %)**1**|(% style="width:140px;background-color:#D9E2F3;color:#0070C0" %)**2**|(% style="width:40px;background-color:#D9E2F3;color:#0070C0" %)**2**
++|(% style="background-color:#d9e2f3; color:#0070c0; width:40px" %)**Size(bytes)**|(% style="background-color:#d9e2f3; color:#0070c0; width:40px" %)**2**|(% style="background-color:#d9e2f3; color:#0070c0; width:110px" %)**2**|(% style="background-color:#d9e2f3; color:#0070c0; width:40px" %)**2**|(% style="background-color:#d9e2f3; color:#0070c0; width:110px" %)**1**|(% style="background-color:#d9e2f3; color:#0070c0; width:140px" %)**2**|(% style="background-color:#d9e2f3; color:#0070c0; width:40px" %)**2**
  |**Value**|BAT|(% style="width:196px" %)(((
  Temperature(DS18B20)(PC13)
  )))|(% style="width:87px" %)(((
@@ -330,10 +330,12 @@
  [[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/1656324539647-568.png?rev=1.1||alt="1656324539647-568.png"]]
++
  (% style="color:blue" %)**Connection of LIDAR-Lite V3HP:**
  [[image:image-20230512173758-5.png||height="563" width="712"]]
++
  (% style="color:blue" %)**Connection to Ultrasonic Sensor:**
  Need to remove R1 and R2 resistors to get low power,otherwise there will be 240uA standby current.
@@ -340,10 +340,11 @@
  [[image:image-20230512173903-6.png||height="596" width="715"]]
++
  For the connection to TF-Mini or TF-Luna , MOD2 payload is as below:
  (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %)
--|(% style="width:50px;background-color:#D9E2F3;color:#0070C0" %)**Size(bytes)**|(% style="width:20px;background-color:#D9E2F3;color:#0070C0" %)**2**|(% style="width:100px;background-color:#D9E2F3;color:#0070C0" %)**2**|(% style="width:100px;background-color:#D9E2F3;color:#0070C0" %)**1**|(% style="width:50px;background-color:#D9E2F3;color:#0070C0" %)**2**|(% style="width:120px;background-color:#D9E2F3;color:#0070C0" %)**2**|(% style="width:80px;background-color:#D9E2F3;color:#0070C0" %)**2**
++|(% style="background-color:#d9e2f3; color:#0070c0; width:50px" %)**Size(bytes)**|(% style="background-color:#d9e2f3; color:#0070c0; width:20px" %)**2**|(% style="background-color:#d9e2f3; color:#0070c0; width:100px" %)**2**|(% style="background-color:#d9e2f3; color:#0070c0; width:100px" %)**1**|(% style="background-color:#d9e2f3; color:#0070c0; width:50px" %)**2**|(% style="background-color:#d9e2f3; color:#0070c0; width:120px" %)**2**|(% style="background-color:#d9e2f3; color:#0070c0; width:80px" %)**2**
  |**Value**|BAT|(% style="width:183px" %)(((
  Temperature(DS18B20)(PC13)
  )))|(% style="width:173px" %)(((
@@ -358,6 +358,7 @@
  [[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/1656376779088-686.png?rev=1.1||alt="1656376779088-686.png"]]
++
  **Connection to [[TF-Mini plus>>url:http://en.benewake.com/product/detail/5c345cd0e5b3a844c472329b.html]] LiDAR(UART version):**
  Need to remove R3 and R4 resistors to get low power,otherwise there will be 400uA standby current.
@@ -364,6 +364,7 @@
  [[image:image-20230512180609-7.png||height="555" width="802"]]
++
  **Connection to [[TF-Luna>>url:http://en.benewake.com/product/detail/5e1c1fd04d839408076b6255.html]] LiDAR (UART version):**
  Need to remove R3 and R4 resistors to get low power,otherwise there will be 400uA standby current.
@@ -373,6 +373,7 @@
  ==== 2.3.2.3  MOD~=3 (3 ADC + I2C) ====
++
  This mode has total 12 bytes. Include 3 x ADC + 1x I2C
  (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %)
@@ -402,7 +402,7 @@
  This mode has total 11 bytes. As shown below:
  (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %)
--|(% style="width: 50px;background-color:#D9E2F3;color:#0070C0" %)**Size(bytes)**|(% style="width: 20px;background-color:#D9E2F3;color:#0070C0" %)**2**|(% style="width: 100px;background-color:#D9E2F3;color:#0070C0" %)**2**|(% style="width: 50px;background-color:#D9E2F3;color:#0070C0" %)**2**|(% style="width: 100px;background-color:#D9E2F3;color:#0070C0" %)**1**|(% style="width: 100px;background-color:#D9E2F3;color:#0070C0" %)**2**|(% style="width: 100px;background-color:#D9E2F3;color:#0070C0" %)**2**
++|(% style="background-color:#d9e2f3; color:#0070c0; width:50px" %)**Size(bytes)**|(% style="background-color:#d9e2f3; color:#0070c0; width:20px" %)**2**|(% style="background-color:#d9e2f3; color:#0070c0; width:100px" %)**2**|(% style="background-color:#d9e2f3; color:#0070c0; width:50px" %)**2**|(% style="background-color:#d9e2f3; color:#0070c0; width:100px" %)**1**|(% style="background-color:#d9e2f3; color:#0070c0; width:100px" %)**2**|(% style="background-color:#d9e2f3; color:#0070c0; width:100px" %)**2**
  |**Value**|BAT|(% style="width:186px" %)(((
  Temperature1(DS18B20)(PC13)
  )))|(% style="width:82px" %)(((
@@ -417,8 +417,10 @@
  [[image:image-20230513134006-1.png||height="559" width="736"]]
++
  ==== 2.3.2.5  MOD~=5(Weight Measurement by HX711) ====
++
  [[image:image-20230512164658-2.png||height="532" width="729"]]
  Each HX711 need to be calibrated before used. User need to do below two steps:
@@ -454,8 +454,10 @@
  [[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-20220820120036-2.png?width=1003&height=469&rev=1.1||alt="image-20220820120036-2.png" height="469" width="1003"]]
++
  ==== 2.3.2.6  MOD~=6 (Counting Mode) ====
++
  In this mode, the device will work in counting mode. It counts the interrupt on the interrupt pins and sends the count on TDC time.
  Connection is as below. The PIR sensor is a count sensor, it will generate interrupt when people come close or go away. User can replace the PIR sensor with other counting sensors.
@@ -462,7 +462,7 @@
  [[image:image-20230512181814-9.png||height="543" width="697"]]
--(% style="color:red" %)**Note:** LoRaWAN wireless transmission will infect the PIR sensor. Which cause the counting value increase +1 for every uplink. User can change PIR sensor or put sensor away of the SN50_v3 to avoid this happen.
++(% style="color:red" %)**Note:** **LoRaWAN wireless transmission will infect the PIR sensor. Which cause the counting value increase +1 for every uplink. User can change PIR sensor or put sensor away of the SN50_v3 to avoid this happen.**
  (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %)
  |=(% style="width: 50px;background-color:#D9E2F3;color:#0070C0" %)**Size(bytes)**|=(% style="width: 20px;background-color:#D9E2F3;color:#0070C0" %)**2**|=(% style="width: 220px;background-color:#D9E2F3;color:#0070C0" %)**2**|=(% style="width: 50px;background-color:#D9E2F3;color:#0070C0" %)**2**|=(% style="width: 100px;background-color:#D9E2F3;color:#0070C0" %)**1**|=(% style="width: 80px;background-color:#D9E2F3;color:#0070C0" %)**4**
@@ -479,8 +479,10 @@
  [[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/1656378441509-171.png?rev=1.1||alt="1656378441509-171.png"]]
++
  ==== 2.3.2.7  MOD~=7 (Three interrupt contact modes) ====
++
  (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %)
  |=(% style="width: 50px;background-color:#D9E2F3;color:#0070C0" %)(((
  **Size(bytes)**
@@ -496,8 +496,10 @@
  [[image:image-20230513111203-7.png||height="324" width="975"]]
++
  ==== 2.3.2.8  MOD~=8 （3ADC+1DS18B20） ====
++
  (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %)
  |=(% style="width: 50px;background-color:#D9E2F3;color:#0070C0" %)(((
  **Size(bytes)**
@@ -520,10 +520,11 @@
  ==== 2.3.2.9  MOD~=9 (3DS18B20+ two Interrupt count mode) ====
++
  (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %)
  |=(% style="width: 50px;background-color:#D9E2F3;color:#0070C0" %)(((
  **Size(bytes)**
--)))|=**2**|=**2**|=**2**|=**1**|=(% style="width: 193px;" %)**2**|=(% style="width: 78px;" %)4|=(% style="width: 78px;" %)4
++)))|=(% style="width: 20px;background-color:#D9E2F3;color:#0070C0" %)**2**|=(% style="width: 100px;background-color:#D9E2F3;color:#0070C0" %)**2**|=(% style="width: 100px;background-color:#D9E2F3;color:#0070C0" %)**2**|=(% style="width: 80px;background-color:#D9E2F3;color:#0070C0" %)**1**|=(% style="width: 100px;background-color:#D9E2F3;color:#0070C0" %)**2**|=(% style="width: 60px;background-color:#D9E2F3;color:#0070C0" %)4|=(% style="width: 60px;background-color:#D9E2F3;color:#0070C0" %)4
  |**Value**|BAT|(((
  Temperature1(DS18B20)
  (PC13)
@@ -537,33 +537,32 @@
  Temperature3(DS18B20)
  (PB8)
  )))|(% style="width:78px" %)(((
--Count1
--(PA8)
++Count1(PA8)
  )))|(% style="width:78px" %)(((
--Count2
--(PA4)
++Count2(PA4)
  )))
  [[image:image-20230513111255-9.png||height="341" width="899"]]
--**The newly added AT command is issued correspondingly:**
++(% style="color:blue" %)**The newly added AT command is issued correspondingly:**
--**~ AT+INTMOD1** ** PA8**   pin：  Corresponding downlink:   **06 00 00 xx**
++(% style="color:#037691" %)** AT+INTMOD1 PA8**(%%)   pin：  Corresponding downlink:   (% style="color:#037691" %)**06 00 00 xx**
--**~ AT+INTMOD2**  **PA4**   pin：  Corresponding downlink:**   06 00 01 xx**
++(% style="color:#037691" %)** AT+INTMOD2 PA4**(%%)   pin：  Corresponding downlink:   (% style="color:#037691" %)**06 00 01 xx**
--**~ AT+INTMOD3**  **PB15**    pin：  Corresponding downlink:  ** 06 00 02 xx**
++(% style="color:#037691" %)** AT+INTMOD3 PB15**(%%)    pin：  Corresponding downlink:  (% style="color:#037691" %)** 06 00 02 xx**
--**AT+SETCNT=aa,bb**
++(% style="color:blue" %)**AT+SETCNT=aa,bb**
++
  When AA is 1, set the count of PA8 pin to BB    Corresponding downlink：09 01 bb bb bb bb
  When AA is 2, set the count of PA4 pin to BB    Corresponding downlink：09 02 bb bb bb bb
--
  === 2.3.3  Decode payload ===
++
  While using TTN V3 network, you can add the payload format to decode the payload.
  [[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/1656378466788-734.png?rev=1.1||alt="1656378466788-734.png"]]
@@ -575,6 +575,7 @@
  ==== 2.3.3.1  Battery Info ====
++
  Check the battery voltage for SN50v3.
  Ex1: 0x0B45 = 2885mV
@@ -584,16 +584,18 @@
  ==== 2.3.3.2  Temperature (DS18B20) ====
++
  If there is a DS18B20 connected to PC13 pin. The temperature will be uploaded in the payload.
--More DS18B20 can check the [[3 DS18B20 mode>>url:http://wiki.dragino.com/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LSN50%20%26%20LSN50-V2%20-%20LoRaWAN%20Sensor%20Node%20User%20Manual/#2.3.4MOD3D4283xDS18B2029]]
++More DS18B20 can check the [[3 DS18B20 mode>>||anchor="H2.3.2.4MOD3D4283xDS18B2029"]]
--**Connection:**
++(% style="color:blue" %)**Connection:**
  [[image:image-20230512180718-8.png||height="538" width="647"]]
--**Example**:
++(% style="color:blue" %)**Example**:
++
  If payload is: 0105H:  (0105 & 8000 == 0), temp = 0105H /10 = 26.1 degree
  If payload is: FF3FH :  (FF3F & 8000 == 1) , temp = (FF3FH - 65536)/10 = -19.3 degrees.
@@ -603,6 +603,7 @@
  ==== 2.3.3.3  Digital Input ====
++
  The digital input for pin PB15,
  * When PB15 is high, the bit 1 of payload byte 6 is 1.
@@ -612,11 +612,14 @@
  (((
  When the digital interrupt pin is set to AT+INTMODx=0, this pin is used as a digital input pin.
--(% style="color:red" %)**Note:**The maximum voltage input supports 3.6V.
++(% style="color:red" %)**Note: The maximum voltage input supports 3.6V.**
++
++
  )))
  ==== 2.3.3.4  Analogue Digital Converter (ADC) ====
++
  The measuring range of the ADC is only about 0V to 1.1V The voltage resolution is about 0.24mv.
  When the measured output voltage of the sensor is not within the range of 0V and 1.1V, the output voltage terminal of the sensor shall be divided The example in the following figure is to reduce the output voltage of the sensor by three times If it is necessary to reduce more times, calculate according to the formula in the figure and connect the corresponding resistance in series.
@@ -623,17 +623,19 @@
  [[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LHT65N%20LoRaWAN%20Temperature%20%26%20Humidity%20Sensor%20Manual/WebHome/image-20220628150112-1.png?width=285&height=241&rev=1.1||alt="image-20220628150112-1.png" height="241" width="285"]]
--(% style="color:red" %)**Note:**If the ADC type sensor needs to be powered by SN50_v3, it is recommended to use +5V to control its switch.Only sensors with low power consumption can be powered with VDD.
++(% style="color:red" %)**Note: If the ADC type sensor needs to be powered by SN50_v3, it is recommended to use +5V to control its switch.Only sensors with low power consumption can be powered with VDD.**
  ==== 2.3.3.5  Digital Interrupt ====
++
  Digital Interrupt refers to pin PA8, and there are different trigger methods. When there is a trigger, the SN50v3 will send a packet to the server.
--(% style="color:blue" %)**~ Interrupt connection method:**
++(% style="color:blue" %)** Interrupt connection method:**
  [[image:image-20230513105351-5.png||height="147" width="485"]]
++
  (% style="color:blue" %)**Example to use with door sensor :**
  The door sensor is shown at right. It is a two wire magnetic contact switch used for detecting the open/close status of doors or windows.
@@ -642,8 +642,9 @@
  When the two pieces are close to each other, the 2 wire output will be short or open (depending on the type), while if the two pieces are away from each other, the 2 wire output will be the opposite status. So we can use SN50_v3 interrupt interface to detect the status for the door or window.
--(% style="color:blue" %)**~ Below is the installation example:**
++(% style="color:blue" %)**Below is the installation example:**
++
  Fix one piece of the magnetic sensor to the door and connect the two pins to SN50_v3 as follows:
  * (((
@@ -655,7 +655,7 @@
  Install the other piece to the door. Find a place where the two pieces will be close to each other when the door is closed. For this particular magnetic sensor, when the door is closed, the output will be short, and PA8 will be at the VCC voltage.
--Door sensors have two types: ** NC (Normal close)** and **NO (normal open)**. The connection for both type sensors are the same. But the decoding for payload are reverse, user need to modify this in the IoT Server decoder.
++Door sensors have two types: (% style="color:blue" %)** NC (Normal close)**(%%) and (% style="color:blue" %)**NO (normal open)**(%%). The connection for both type sensors are the same. But the decoding for payload are reverse, user need to modify this in the IoT Server decoder.
  When door sensor is shorted, there will extra power consumption in the circuit, the extra current is 3v3/R14 = 3v3/1Mohm = 3uA which can be ignored.
@@ -667,12 +667,13 @@
  The command is:
--(% style="color:blue" %)**AT+INTMOD1=1   **   (%%) ~/~/(more info about INMOD please refer** **[[**AT Command Manual**>>url:http://www.dragino.com/downloads/index.php?dir=LSN50-LoRaST/&file=DRAGINO_LSN50_AT_Commands_v1.5.1.pdf]]**. **)
++(% style="color:blue" %)**AT+INTMOD1=1   **   (%%) ~/~/(more info about INMOD please refer** **[[**AT Command Manual**>>url:http://www.dragino.com/downloads/index.php?dir=LSN50-LoRaST/&file=DRAGINO_LSN50_AT_Commands_v1.5.1.pdf]]**. **)
  Below shows some screen captures in TTN V3:
  [[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/1656379339508-835.png?rev=1.1||alt="1656379339508-835.png"]]
++
  In MOD=1, user can use byte 6 to see the status for door open or close. TTN V3 decoder is as below:
  door= (bytes[6] & 0x80)? "CLOSE":"OPEN";
@@ -680,6 +680,7 @@
  ==== 2.3.3.6  I2C Interface (SHT20 & SHT31) ====
++
  The SDA and SCK are I2C interface lines. You can use these to connect to an I2C device and get the sensor data.
  We have made an example to show how to use the I2C interface to connect to the SHT20/ SHT31 Temperature and Humidity Sensor.
@@ -708,23 +708,26 @@
  ==== 2.3.3.7  Distance Reading ====
--Refer [[Ultrasonic Sensor section>>url:http://wiki.dragino.com/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LSN50%20%26%20LSN50-V2%20-%20LoRaWAN%20Sensor%20Node%20User%20Manual/#H2.4.8UltrasonicSensor]].
++Refer [[Ultrasonic Sensor section>>||anchor="H2.3.3.8UltrasonicSensor"]].
++
  ==== 2.3.3.8  Ultrasonic Sensor ====
++
  This Fundamental Principles of this sensor can be found at this link: [[https:~~/~~/wiki.dfrobot.com/Weather_-_proof_Ultrasonic_Sensor_with_Separate_Probe_SKU~~_~~__SEN0208>>url:https://wiki.dfrobot.com/Weather_-_proof_Ultrasonic_Sensor_with_Separate_Probe_SKU___SEN0208]]
  The SN50_v3 detects the pulse width of the sensor and converts it to mm output. The accuracy will be within 1 centimeter. The usable range (the distance between the ultrasonic probe and the measured object) is between 24cm and 600cm.
--The working principle of this sensor is similar to the **HC-SR04** ultrasonic sensor.
++The working principle of this sensor is similar to the (% style="color:blue" %)**HC-SR04**(%%) ultrasonic sensor.
  The picture below shows the connection:
  [[image:image-20230512173903-6.png||height="596" width="715"]]
--Connect to the SN50_v3 and run **AT+MOD=2** to switch to ultrasonic mode (ULT).
++Connect to the SN50_v3 and run (% style="color:blue" %)**AT+MOD=2**(%%) to switch to ultrasonic mode (ULT).
++
  The ultrasonic sensor uses the 8^^th^^ and 9^^th^^ byte for the measurement value.
  **Example:**
@@ -732,14 +732,15 @@
  Distance:  Read: 0C2D(Hex) = 3117(D)  Value:  3117 mm=311.7 cm
--
  ==== 2.3.3.9  Battery Output - BAT pin ====
++
  The BAT pin of SN50v3 is connected to the Battery directly. If users want to use BAT pin to power an external sensor. User need to make sure the external sensor is of low power consumption. Because the BAT pin is always open. If the external sensor is of high power consumption. the battery of SN50v3-LB will run out very soon.
  ==== 2.3.3.10  +5V Output ====
++
  SN50v3 will enable +5V output before all sampling and disable the +5v after all sampling.
  The 5V output time can be controlled by AT Command.
@@ -751,18 +751,20 @@
  By default the AT+5VT=500. If the external sensor which require 5v and require more time to get stable state, user can use this command to increase the power ON duration for this sensor.
--
  ==== 2.3.3.11  BH1750 Illumination Sensor ====
++
  MOD=1 support this sensor. The sensor value is in the 8^^th^^ and 9^^th^^ bytes.
  [[image:image-20230512172447-4.png||height="416" width="712"]]
++
  [[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-20220628110012-12.png?rev=1.1||alt="image-20220628110012-12.png" height="361" width="953"]]
  ==== 2.3.3.12  Working MOD ====
++
  The working MOD info is contained in the Digital in & Digital Interrupt byte (7^^th^^ Byte).
  User can use the 3^^rd^^ ~~ 7^^th^^   bit of this byte to see the working mod:
@@ -791,7 +791,6 @@
  [[https:~~/~~/github.com/dragino/dragino-end-node-decoder/tree/main/SN50_v3-LB>>https://github.com/dragino/dragino-end-node-decoder/tree/main/SN50_v3-LB]]
--
  == 2.5 Frequency Plans ==
@@ -811,6 +811,8 @@
  * AT Command via UART Connection : See [[UART Connection>>http://wiki.dragino.com/xwiki/bin/view/Main/UART%20Access%20for%20LoRa%20ST%20v4%20base%20model/#H2.3UARTConnectionforSN50v3basemotherboard]].
  * LoRaWAN Downlink.  Instruction for different platforms: See [[IoT LoRaWAN Server>>http://wiki.dragino.com/xwiki/bin/view/Main/]] section.
++
++
  == 3.2 General Commands ==
@@ -832,6 +832,7 @@
  === 3.3.1 Set Transmit Interval Time ===
++
  Feature: Change LoRaWAN End Node Transmit Interval.
  (% style="color:blue" %)**AT Command: AT+TDC**
@@ -857,8 +857,6 @@
  * Example 1: Downlink Payload: 0100001E       ~/~/  Set Transmit Interval (TDC) = 30 seconds
  * Example 2: Downlink Payload: 0100003C       ~/~/  Set Transmit Interval (TDC) = 60 seconds
--
--
  === 3.3.2 Get Device Status ===
  Send a LoRaWAN downlink to ask the device to send its status.
@@ -906,8 +906,6 @@
  * Example 3: Downlink Payload: 06000102      **~-~-->**  AT+INTMOD2=2
  * Example 4: Downlink Payload: 06000201      **~-~-->**  AT+INTMOD3=1
--
--
  === 3.3.4 Set Power Output Duration ===
  Control the output duration 5V . Before each sampling, device will
@@ -939,8 +939,6 @@
  * Example 1: Downlink Payload: 070000     **~-~-->**   AT+5VT=0
  * Example 2: Downlink Payload: 0701F4      **~-~-->**  AT+5VT=500
--
--
  === 3.3.5 Set Weighing parameters ===
  Feature: Working mode 5 is effective, weight initialization and weight factor setting of HX711.
@@ -965,8 +965,6 @@
  * Example 2: Downlink Payload: 08020FA3  **~-~-->**   AT+WEIGAP=400.3
  * Example 3: Downlink Payload: 08020FA0  **~-~-->**   AT+WEIGAP=400.0
--
--
  === 3.3.6 Set Digital pulse count value ===
  Feature: Set the pulse count value.
@@ -989,8 +989,6 @@
  * Example 1: Downlink Payload: 090100000000  **~-~-->**   AT+SETCNT=1,0
  * Example 2: Downlink Payload: 0902000003E8  **~-~-->**   AT+SETCNT=2,1000
--
--
  === 3.3.7 Set Workmode ===
  Feature: Switch working mode.
@@ -1014,8 +1014,6 @@
  * Example 1: Downlink Payload: 0A01      **~-~-->**   AT+MOD=1
  * Example 2: Downlink Payload: 0A04      **~-~-->**   AT+MOD=4
--
--
  = 4. Battery & Power Consumption =

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