SN50v3-LB LoRaWAN Sensor Node User Manual

(% style="color:blue" %)**SN50V3-LB **(%%)LoRaWAN Sensor Node is a Long Range LoRa Sensor Node. It is designed for outdoor use and powered by (% style="color:blue" %)** 8500mA Li/SOCl2 battery**(%%) for long term use.SN50V3-LB is designed to facilitate developers to quickly deploy industrial level LoRa and IoT solutions. It help users to turn the idea into a practical application and make the Internet of Things a reality. It is easy to program, create and connect your things everywhere.

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(% style="color:blue" %)**SN50V3-LB wireless part**(%%) is based on SX1262 allows the user to send data and reach extremely long ranges at low data-rates.It provides ultra-long range spread spectrum communication and high interference immunity whilst minimising current consumption.It targets professional wireless sensor network applications such as irrigation systems, smart metering, smart cities, smartphone detection, building automation, and so on.

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(% style="color:blue" %)**SN50V3-LB **(%%)has a powerful 48Mhz ARM microcontroller with 256KB flash and 64KB RAM. It has multiplex I/O pins to connect to different sensors.

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(% style="color:blue" %)**SN50V3-LB**(%%) has a built-in BLE module, user can configure the sensor remotely via Mobile Phone. It also support OTA upgrade via private LoRa protocol for easy maintaining.

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SN50V3-LB is the 3^^rd^^ generation of LSN50 series generic sensor node from Dragino. It is an (% style="color:blue" %)**open source project**(%%) and has a mature LoRaWAN stack and application software. User can use the pre-load software for their IoT projects or easily customize the software for different requirements.

== 1.2 Features ==

* LoRaWAN 1.0.3 Class A

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* Ultra-low power consumption

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* Open-Source hardware/software

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* Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915/IN865

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* Support Bluetooth v5.1 and LoRaWAN remote configure

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* Support wireless OTA update firmware

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* Uplink on periodically

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* Downlink to change configure

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* 8500mAh Battery for long term use

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== 1.3 Specification ==

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(% style="color:#037691" %)**Common DC Characteristics:**

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* Supply Voltage: built in 8500mAh Li-SOCI2 battery , 2.5v ~~ 3.6v

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* Operating Temperature: -40 ~~ 85°C

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(% style="color:#037691" %)**I/O Interface:**

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* Battery output (2.6v ~~ 3.6v depends on battery)

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* +5v controllable output

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* 3 x Interrupt or Digital IN/OUT pins

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* 3 x one-wire interfaces

* 1 x UART Interface

* 1 x I2C Interface

(% style="color:#037691" %)**LoRa Spec:**

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* Frequency Range, Band 1 (HF): 862 ~~ 1020 Mhz

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* Max +22 dBm constant RF output vs.

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* RX sensitivity: down to -139 dBm.

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* Excellent blocking immunity

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(% style="color:#037691" %)**Battery:**

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* Li/SOCI2 un-chargeable battery

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* Capacity: 8500mAh

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* Self-Discharge: <1% / Year @ 25°C

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* Max continuously current: 130mA

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* Max boost current: 2A, 1 second

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(% style="color:#037691" %)**Power Consumption**

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* Sleep Mode: 5uA @ 3.3v

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* LoRa Transmit Mode: 125mA @ 20dBm, 82mA @ 14dBm

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== 1.4 Sleep mode and working mode ==

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(% style="color:blue" %)**Deep Sleep Mode: **(%%)Sensor doesn't have any LoRaWAN activate. This mode is used for storage and shipping to save battery life.

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(% style="color:blue" %)**Working Mode:** (%%)In this mode, Sensor will work as LoRaWAN Sensor to Join LoRaWAN network and send out sensor data to server. Between each sampling/tx/rx periodically, sensor will be in IDLE mode), in IDLE mode, sensor has the same power consumption as Deep Sleep mode.

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== 1.5 Button & LEDs ==

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[[image:Main.User Manual for LoRaWAN End Nodes.D20-LBD22-LBD23-LB_LoRaWAN_Temperature_Sensor_User_Manual.WebHome@1675071855856-879.png]]

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(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)

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|=(% style="width: 167px;background-color:#D9E2F3;color:#0070C0" %)**Behavior on ACT**|=(% style="width: 117px;background-color:#D9E2F3;color:#0070C0" %)**Function**|=(% style="width: 225px;background-color:#D9E2F3;color:#0070C0" %)**Action**

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|(% style="width:167px" %)Pressing ACT between 1s < time < 3s|(% style="width:117px" %)Send an uplink|(% style="width:225px" %)(((

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If sensor is already Joined to LoRaWAN network, sensor will send an uplink packet, (% style="color:blue" %)**blue led** (%%)will blink once.

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Meanwhile, BLE module will be active and user can connect via BLE to configure device.

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)))

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|(% style="width:167px" %)Pressing ACT for more than 3s|(% style="width:117px" %)Active Device|(% style="width:225px" %)(((

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(% style="color:green" %)**Green led**(%%) will fast blink 5 times, device will enter (% style="color:#037691" %)**OTA mode**(%%) for 3 seconds. And then start to JOIN LoRaWAN network.

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(% style="color:green" %)**Green led**(%%) will solidly turn on for 5 seconds after joined in network.

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Once sensor is active, BLE module will be active and user can connect via BLE to configure device, no matter if device join or not join LoRaWAN network.

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)))

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|(% style="width:167px" %)Fast press ACT 5 times.|(% style="width:117px" %)Deactivate Device|(% style="width:225px" %)(% style="color:red" %)**Red led**(%%) will solid on for 5 seconds. Means device is in Deep Sleep Mode.

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== 1.6 BLE connection ==

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SN50v3-LB supports BLE remote configure.

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BLE can be used to configure the parameter of sensor or see the console output from sensor. BLE will be only activate on below case:

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* Press button to send an uplink

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* Press button to active device.

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* Device Power on or reset.

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If there is no activity connection on BLE in 60 seconds, sensor will shut down BLE module to enter low power mode.

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== 1.7 Pin Definitions ==

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[[image:image-20230513102034-2.png]]

== 1.8 Mechanical ==

[[image:Main.User Manual for LoRaWAN End Nodes.D20-LBD22-LBD23-LB_LoRaWAN_Temperature_Sensor_User_Manual.WebHome@1675143884058-338.png]]

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[[image:Main.User Manual for LoRaWAN End Nodes.D20-LBD22-LBD23-LB_LoRaWAN_Temperature_Sensor_User_Manual.WebHome@1675143899218-599.png]]

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[[image:Main.User Manual for LoRaWAN End Nodes.D20-LBD22-LBD23-LB_LoRaWAN_Temperature_Sensor_User_Manual.WebHome@1675143909447-639.png]]

== Hole Option ==

SN50v3-LB has different hole size options for different size sensor cable. The options provided are M12, M16 and M20. The definition is as below:

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[[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-20220627104757-1.png?rev=1.1||alt="image-20220627104757-1.png"]]

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[[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/1656298089706-973.png?rev=1.1||alt="1656298089706-973.png"]]

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= 2. Configure SN50v3-LB to connect to LoRaWAN network =

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== 2.1 How it works ==

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The SN50v3-LB is configured as (% style="color:#037691" %)**LoRaWAN OTAA Class A**(%%) mode by default. It has OTAA keys to join LoRaWAN network. To connect a local LoRaWAN network, you need to input the OTAA keys in the LoRaWAN IoT server and press the button to activate the S31x-LB. It will automatically join the network via OTAA and start to send the sensor value. The default uplink interval is 20 minutes.

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== 2.2 Quick guide to connect to LoRaWAN server (OTAA) ==

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Following is an example for how to join the [[TTN v3 LoRaWAN Network>>url:https://console.cloud.thethings.network/]]. Below is the network structure; we use the [[LPS8v2>>url:https://www.dragino.com/products/lora-lorawan-gateway/item/228-lps8v2.html]] as a LoRaWAN gateway in this example.

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The LPS8V2 is already set to connected to [[TTN network >>url:https://console.cloud.thethings.network/]], so what we need to now is configure the TTN server.

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(% style="color:blue" %)**Step 1:**(%%) Create a device in TTN with the OTAA keys from SN50v3-LB.

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Each SN50v3-LB is shipped with a sticker with the default device EUI as below:

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[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/S31-LB_S31B-LB/WebHome/image-20230426084152-1.png?width=502&height=233&rev=1.1||alt="图片-20230426084152-1.png" height="233" width="502"]]

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You can enter this key in the LoRaWAN Server portal. Below is TTN screen shot:

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(% style="color:blue" %)**Register the device**

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[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LSN50v2-S31-S31B%20LoRaWAN%20Temperature%20%26%20Humidity%20Sensor%20User%20Manual/WebHome/1654935135620-998.png?rev=1.1||alt="1654935135620-998.png"]]

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(% style="color:blue" %)**Add APP EUI and DEV EUI**

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[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LSN50v2-S31-S31B%20LoRaWAN%20Temperature%20%26%20Humidity%20Sensor%20User%20Manual/WebHome/image-20220611161308-4.png?width=753&height=551&rev=1.1||alt="图片-20220611161308-4.png"]]

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(% style="color:blue" %)**Add APP EUI in the application**

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[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LSN50v2-S31-S31B%20LoRaWAN%20Temperature%20%26%20Humidity%20Sensor%20User%20Manual/WebHome/image-20220611161308-5.png?width=742&height=601&rev=1.1||alt="图片-20220611161308-5.png"]]

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(% style="color:blue" %)**Add APP KEY**

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[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LSN50v2-S31-S31B%20LoRaWAN%20Temperature%20%26%20Humidity%20Sensor%20User%20Manual/WebHome/image-20220611161308-6.png?width=744&height=485&rev=1.1||alt="图片-20220611161308-6.png"]]

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(% style="color:blue" %)**Step 2:**(%%) Activate SN50v3-LB

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Press the button for 5 seconds to activate the SN50v3-LB.

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(% style="color:green" %)**Green led**(%%) will fast blink 5 times, device will enter (% style="color:blue" %)**OTA mode**(%%) for 3 seconds. And then start to JOIN LoRaWAN network. (% style="color:green" %)**Green led**(%%) will solidly turn on for 5 seconds after joined in network.

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After join success, it will start to upload messages to TTN and you can see the messages in the panel.

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== 2.3 Uplink Payload ==

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=== 2.3.1 Device Status, FPORT~=5 ===

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Users can use the downlink command(**0x26 01**) to ask SN50v3 to send device configure detail, include device configure status. SN50v3 will uplink a payload via FPort=5 to server.

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The Payload format is as below.

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(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)

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|(% colspan="6" style="background-color:#d9e2f3; color:#0070c0" %)**Device Status (FPORT=5)**

Example parse in TTNv3

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(% style="color:#037691" %)**Sensor Model**(%%): For SN50v3, this value is 0x1C

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(% style="color:#037691" %)**Firmware Version**(%%): 0x0100, Means: v1.0.0 version

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(% style="color:#037691" %)**Frequency Band**:

*0x01: EU868

*0x02: US915

*0x03: IN865

*0x04: AU915

*0x05: KZ865

*0x06: RU864

*0x07: AS923

*0x08: AS923-1

*0x09: AS923-2

*0x0a: AS923-3

*0x0b: CN470

*0x0c: EU433

*0x0d: KR920

*0x0e: MA869

(% style="color:#037691" %)**Sub-Band**:

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AU915 and US915:value 0x00 ~~ 0x08

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CN470: value 0x0B ~~ 0x0C

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Other Bands: Always 0x00

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(% style="color:#037691" %)**Battery Info**:

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Check the battery voltage.

Ex1: 0x0B45 = 2885mV

Ex2: 0x0B49 = 2889mV

=== 2.3.2 Working Modes & Sensor Data. Uplink via FPORT~=2 ===

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SN50v3 has different working mode for the connections of different type of sensors. This section describes these modes. Use can use the AT Command AT+MOD to set SN50v3 to different working modes.

For example:

**AT+MOD=2 ** ~/~/ will set the SN50v3 to work in MOD=2 distance mode which target to measure distance via Ultrasonic Sensor.

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(% style="color:red" %) **Important Notice:**

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1. Some working modes has payload more than 12 bytes, The US915/AU915/AS923 frequency bands' definition has maximum 11 bytes in **DR0**. Server sides will see NULL payload while SN50v3 transmit in DR0 with 12 bytes payload.

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1. All modes share the same Payload Explanation from HERE.

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1. By default, the device will send an uplink message every 20 minutes.

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==== 2.3.2.1 MOD~=1 (Default Mode) ====

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In this mode, uplink payload includes in total 11 bytes. Uplink packets use FPORT=2.

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(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %)

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|(% style="background-color:#D9E2F3;color:#0070C0" %)**Size(bytes)**|(% style="background-color:#D9E2F3;color:#0070C0" %)**2**|(% style="width:191px;background-color:#D9E2F3;color:#0070C0" %)**2**|(% style="width:78px;background-color:#D9E2F3;color:#0070C0" %)**2**|(% style="width:216px;background-color:#D9E2F3;color:#0070C0" %)**1**|(% style="width:308px;background-color:#D9E2F3;color:#0070C0" %)**2**|(% style="width:154px;background-color:#D9E2F3;color:#0070C0" %)**2**

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|**Value**|Bat|(% style="width:191px" %)(((

Temperature(DS18B20)

(PC13)

)))|(% style="width:78px" %)(((

ADC

(PA4)

)))|(% style="width:216px" %)(((

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Digital in(PB15) &

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Digital Interrupt(PA8)

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)))|(% style="width:308px" %)(((

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Temperature

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(SHT20 or SHT31 or BH1750 Illumination Sensor)

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)))|(% style="width:154px" %)(((

Humidity

(SHT20 or SHT31)

)))

[[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"]]

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==== 2.3.2.2 MOD~=2 (Distance Mode) ====

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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.

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(% style="width:1011px" %)

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|**Value**|BAT|(% style="width:196px" %)(((

Temperature(DS18B20)

(PC13)

)))|(% style="width:87px" %)(((

ADC

(PA4)

)))|(% style="width:189px" %)(((

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Digital in(PB15) &

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Digital Interrupt(PA8)

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)))|(% style="width:208px" %)(((

Distance measure by:

1) LIDAR-Lite V3HP

Or

2) Ultrasonic Sensor

)))|(% style="width:117px" %)Reserved

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[[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"]]

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**Connection of LIDAR-Lite V3HP:**

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[[image:image-20230512173758-5.png||height="563" width="712"]]

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**Connection to Ultrasonic Sensor:**

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Need to remove R1 and R2 resistors to get low power,otherwise there will be 240uA standby current.

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[[image:image-20230512173903-6.png||height="596" width="715"]]

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For the connection to TF-Mini or TF-Luna , MOD2 payload is as below:

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(% style="width:1113px" %)

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|**Value**|BAT|(% style="width:183px" %)(((

Temperature(DS18B20)

(PC13)

)))|(% style="width:173px" %)(((

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Digital in(PB15) &

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Digital Interrupt(PA8)

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)))|(% style="width:84px" %)(((

ADC

(PA4)

)))|(% style="width:323px" %)(((

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Distance measure by:1)TF-Mini plus LiDAR

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Or

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2) TF-Luna LiDAR

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)))|(% style="width:188px" %)Distance signal strength

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[[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"]]

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**Connection to [[TF-Mini plus>>url:http://en.benewake.com/product/detail/5c345cd0e5b3a844c472329b.html]] LiDAR(UART version):**

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Need to remove R3 and R4 resistors to get low power,otherwise there will be 400uA standby current.

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[[image:image-20230512180609-7.png||height="555" width="802"]]

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**Connection to [[TF-Luna>>url:http://en.benewake.com/product/detail/5e1c1fd04d839408076b6255.html]] LiDAR (UART version):**

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Need to remove R3 and R4 resistors to get low power,otherwise there will be 400uA standby current.

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[[image:image-20230513105207-4.png||height="469" width="802"]]

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==== 2.3.2.3 MOD~=3 (3 ADC + I2C) ====

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This mode has total 12 bytes. Include 3 x ADC + 1x I2C

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(% style="width:1031px" %)

|=(((

**Size(bytes)**

|**Value**|(% style="width:68px" %)(((

ADC1

(PA4)

)))|(% style="width:75px" %)(((

ADC2

(PA5)

)))|(((

ADC3

(PA8)

)))|(((

Digital Interrupt(PB15)

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)))|(% style="width:304px" %)(((

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Temperature

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(SHT20 or SHT31 or BH1750 Illumination Sensor)

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)))|(% style="width:163px" %)(((

Humidity

(SHT20 or SHT31)

)))|(% style="width:53px" %)Bat

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[[image:image-20230513110214-6.png]]

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==== 2.3.2.4 MOD~=4 (3 x DS18B20) ====

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This mode has total 11 bytes. As shown below:

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(% style="width:1017px" %)

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|**Value**|BAT|(% style="width:186px" %)(((

443

Temperature1(DS18B20)

444

(PC13)

445

)))|(% style="width:82px" %)(((

ADC

(PA4)

)))|(% style="width:210px" %)(((

450

Digital in(PB15) &

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452

Digital Interrupt(PA8)

453

)))|(% style="width:191px" %)Temperature2(DS18B20)

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(PB9)|(% style="width:183px" %)Temperature3(DS18B20)

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(PB8)

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[[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/1656377606181-607.png?rev=1.1||alt="1656377606181-607.png"]]

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[[image:image-20230513134006-1.png||height="559" width="736"]]

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==== 2.3.2.5 MOD~=5(Weight Measurement by HX711) ====

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[[image:image-20230512164658-2.png||height="532" width="729"]]

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Each HX711 need to be calibrated before used. User need to do below two steps:

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1. Zero calibration. Don't put anything on load cell and run **AT+WEIGRE** to calibrate to Zero gram.

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1. Adjust calibration factor (default value 400): Put a known weight thing on load cell and run **AT+WEIGAP** to adjust the Calibration Factor.

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1. (((

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Weight has 4 bytes, the unit is g.

)))

For example:

**AT+GETSENSORVALUE =0**

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Response: Weight is 401 g

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Check the response of this command and adjust the value to match the real value for thing.

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(% style="width:767px" %)

|=(((

**Size(bytes)**

|**Value**|BAT|(% style="width:193px" %)(((

Temperature(DS18B20)

(PC13)

)))|(% style="width:85px" %)(((

ADC

(PA4)

)))|(% style="width:186px" %)(((

497

Digital in(PB15) &

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499

Digital Interrupt(PA8)

500

)))|(% style="width:100px" %)Weight

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[[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"]]

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==== 2.3.2.6 MOD~=6 (Counting Mode) ====

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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.

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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.

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[[image:image-20230512181814-9.png||height="543" width="697"]]

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**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.

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(% style="width:961px" %)

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|**Value**|BAT|(% style="width:256px" %)(((

Temperature(DS18B20)

(PC13)

)))|(% style="width:108px" %)(((

ADC

(PA4)

)))|(% style="width:126px" %)(((

Digital in

(PB15)

)))|(% style="width:145px" %)(((

Count

(PA8)

)))

[[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"]]

536

537

538

==== 2.3.2.7 MOD~=7 (Three interrupt contact modes) ====

539

540

(% style="width:1108px" %)

|=(((

**Size(bytes)**

|**Value**|BAT|(% style="width:188px" %)(((

Temperature(DS18B20)

(PC13)

)))|(% style="width:83px" %)(((

ADC

(PA5)

)))|(% style="width:184px" %)(((

553

Digital Interrupt1(PA8)

554

)))|(% style="width:186px" %)Digital Interrupt2(PA4)|(% style="width:197px" %)Digital Interrupt3(PB15)|(% style="width:100px" %)Reserved

555

556

[[image:image-20230513111203-7.png||height="324" width="975"]]

557

558

==== 2.3.2.8 MOD~=8 （3ADC+1DS18B20） ====

559

560

(% style="width:922px" %)

|=(((

**Size(bytes)**

|**Value**|BAT|(% style="width:207px" %)(((

Temperature(DS18B20)

(PC13)

)))|(% style="width:94px" %)(((

ADC1

(PA4)

)))|(% style="width:198px" %)(((

573

Digital Interrupt(PB15)

574

)))|(% style="width:84px" %)(((

ADC2

(PA5)

)))|(% style="width:82px" %)(((

ADC3

(PA8)

)))

[[image:image-20230513111231-8.png||height="335" width="900"]]

585

586

587

==== 2.3.2.9 MOD~=9 (3DS18B20+ two Interrupt count mode) ====

588

589

(% style="width:1010px" %)

590

|=(((

591

**Size(bytes)**

592

)))|=**2**|=**2**|=**2**|=**1**|=(% style="width: 193px;" %)**2**|=(% style="width: 78px;" %)4|=(% style="width: 78px;" %)4

593

|**Value**|BAT|(((

594

Temperature1(DS18B20)

(PC13)

)))|(((

Temperature2(DS18B20)

(PB9)

)))|(((

Digital Interrupt

(PB15)

)))|(% style="width:193px" %)(((

606

Temperature3(DS18B20)

607

608

(PB8)

609

)))|(% style="width:78px" %)(((

Count1

(PA8)

)))|(% style="width:78px" %)(((

Count2

(PA4)

)))

[[image:image-20230513111255-9.png||height="341" width="899"]]

620

621

**The newly added AT command is issued correspondingly:**

622

623

**~ AT+INTMOD1** ** PA8** pin： Corresponding downlink: **06 00 00 xx**

624

625

**~ AT+INTMOD2** **PA4** pin： Corresponding downlink:** 06 00 01 xx**

626

627

**~ AT+INTMOD3** **PB15** pin： Corresponding downlink: ** 06 00 02 xx**

**AT+SETCNT=aa,bb**

When AA is 1, set the count of PA8 pin to BB Corresponding downlink：09 01 bb bb bb bb

632

633

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 ===

638

639

While using TTN V3 network, you can add the payload format to decode the payload.

640

641

[[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"]]

642

643

The payload decoder function for TTN V3 are here:

644

645

SN50v3 TTN V3 Payload Decoder: [[https:~~/~~/github.com/dragino/dragino-end-node-decoder>>url:https://github.com/dragino/dragino-end-node-decoder]]

646

647

648

==== 2.3.3.1 Battery Info ====

649

650

Check the battery voltage for SN50v3.

Ex1: 0x0B45 = 2885mV

Ex2: 0x0B49 = 2889mV

==== 2.3.3.2 Temperature (DS18B20) ====

658

659

If there is a DS18B20 connected to PC13 pin. The temperature will be uploaded in the payload.

660

661

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]]

**Connection:**

[[image:image-20230512180718-8.png||height="538" width="647"]]

**Example**:

If payload is: 0105H: (0105 & 8000 == 0), temp = 0105H /10 = 26.1 degree

670

671

If payload is: FF3FH : (FF3F & 8000 == 1) , temp = (FF3FH - 65536)/10 = -19.3 degrees.

672

673

（FF3F & 8000：Judge whether the highest bit is 1, when the highest bit is 1, it is negative）

674

675

676

==== 2.3.3.3 Digital Input ====

677

678

The digital input for pin PB15,

679

680

* When PB15 is high, the bit 1 of payload byte 6 is 1.

681

* When PB15 is low, the bit 1 of payload byte 6 is 0.

682

683

(% class="wikigeneratedid" id="H2.3.3.4A0AnalogueDigitalConverter28ADC29" %)

684

(((

685

When the digital interrupt pin is set to AT+INTMODx=0, this pin is used as a digital input pin.

686

687

**Note:**The maximum voltage input supports 3.6V.

)))

==== 2.3.3.4 Analogue Digital Converter (ADC) ====

693

694

The measuring range of the ADC is only about 0V to 1.1V The voltage resolution is about 0.24mv.

695

696

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.

697

698

[[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"]]

699

700

**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.

701

702

703

==== 2.3.3.5 Digital Interrupt ====

704

705

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.

706

707

**~ Interrupt connection method:**

708

709

[[image:image-20230513105351-5.png||height="147" width="485"]]

710

711

**Example to use with door sensor :**

712

713

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.

714

715

[[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/1656379210849-860.png?rev=1.1||alt="1656379210849-860.png"]]

716

717

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.

718

719

**~ Below is the installation example:**

720

721

Fix one piece of the magnetic sensor to the door and connect the two pins to SN50_v3 as follows:

722

723

* (((

724

One pin to SN50_v3's PA8 pin

725

)))

726

* (((

727

The other pin to SN50_v3's VDD pin

728

)))

729

730

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.

731

732

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.

733

734

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.

735

736

[[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/1656379283019-229.png?rev=1.1||alt="1656379283019-229.png"]]

737

738

The above photos shows the two parts of the magnetic switch fitted to a door.

739

740

The software by default uses the falling edge on the signal line as an interrupt. We need to modify it to accept both the rising edge (0v ~-~-> VCC , door close) and the falling edge (VCC ~-~-> 0v , door open) as the interrupt.

The command is:

**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]]**. **)

745

746

Below shows some screen captures in TTN V3:

747

748

[[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"]]

749

750

In MOD=1, user can use byte 6 to see the status for door open or close. TTN V3 decoder is as below:

751

752

door= (bytes[6] & 0x80)? "CLOSE":"OPEN";

753

754

755

==== 2.3.3.6 I2C Interface (SHT20 & SHT31) ====

756

757

The SDA and SCK are I2C interface lines. You can use these to connect to an I2C device and get the sensor data.

758

759

We have made an example to show how to use the I2C interface to connect to the SHT20/ SHT31 Temperature and Humidity Sensor.

760

761

Notice: Different I2C sensors have different I2C commands set and initiate process, if user want to use other I2C sensors, User need to re-write the source code to support those sensors. SHT20/ SHT31 code in SN50_v3 will be a good reference.

762

763

Below is the connection to SHT20/ SHT31. The connection is as below:

764

765

766

[[image:image-20230513103633-3.png||height="448" width="716"]]

767

768

The device will be able to get the I2C sensor data now and upload to IoT Server.

769

770

[[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/1656379664142-345.png?rev=1.1||alt="1656379664142-345.png"]]

771

772

Convert the read byte to decimal and divide it by ten.

**Example:**

Temperature: Read:0116(H) = 278(D) Value: 278 /10=27.8℃;

777

778

Humidity: Read:0248(H)=584(D) Value: 584 / 10=58.4, So 58.4%

779

780

If you want to use other I2C device, please refer the SHT20 part source code as reference.

781

782

783

==== 2.3.3.7 Distance Reading ====

784

785

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]].

786

787

788

==== 2.3.3.8 Ultrasonic Sensor ====

789

790

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]]

791

792

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.

793

794

The working principle of this sensor is similar to the **HC-SR04** ultrasonic sensor.

795

796

The picture below shows the connection:

797

798

[[image:image-20230512173903-6.png||height="596" width="715"]]

799

800

Connect to the SN50_v3 and run **AT+MOD=2** to switch to ultrasonic mode (ULT).

801

802

The ultrasonic sensor uses the 8^^th^^ and 9^^th^^ byte for the measurement value.

**Example:**

Distance: Read: 0C2D(Hex) = 3117(D) Value: 3117 mm=311.7 cm

==== 2.3.3.9 Battery Output - BAT pin ====

811

812

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.

813

814

815

==== 2.3.3.10 +5V Output ====

816

817

SN50v3 will enable +5V output before all sampling and disable the +5v after all sampling.

818

819

The 5V output time can be controlled by AT Command.

**AT+5VT=1000**

Means set 5V valid time to have 1000ms. So the real 5V output will actually have 1000ms + sampling time for other sensors.

824

825

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 ====

830

831

MOD=1 support this sensor. The sensor value is in the 8^^th^^ and 9^^th^^ bytes.

832

833

[[image:image-20230512172447-4.png||height="416" width="712"]]

834

835

[[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"]]

836

837

838

==== 2.3.3.12 Working MOD ====

839

840

The working MOD info is contained in the Digital in & Digital Interrupt byte (7^^th^^ Byte).

841

842

User can use the 3^^rd^^ ~~ 7^^th^^ bit of this byte to see the working mod:

843

844

Case 7^^th^^ Byte >> 2 & 0x1f:

* 0: MOD1

* 1: MOD2

* 2: MOD3

* 3: MOD4

* 4: MOD5

* 5: MOD6

* 6: MOD7

* 7: MOD8

* 8: MOD9

== ==

== 2.4 Payload Decoder file ==

859

860

861

In TTN, use can add a custom payload so it shows friendly reading

862

863

In the page (% style="color:#037691" %)**Applications ~-~-> Payload Formats ~-~-> Custom ~-~-> decoder**(%%) to add the decoder from:

864

865

[[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 ==

870

871

872

The SN50v3-LB uses OTAA mode and below frequency plans by default. If user want to use it with different frequency plan, please refer the AT command sets.

873

874

[[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/End%20Device%20Frequency%20Band/>>http://wiki.dragino.com/xwiki/bin/view/Main/End%20Device%20Frequency%20Band/]]

875

876

877

= 3. Configure SN50v3-LB =

878

879

== 3.1 Configure Methods ==

880

881

882

SN50v3-LB supports below configure method:

883

884

* AT Command via Bluetooth Connection (**Recommended**): [[BLE Configure Instruction>>http://wiki.dragino.com/xwiki/bin/view/Main/BLE%20Bluetooth%20Remote%20Configure/]].

885

* 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]].

886

* LoRaWAN Downlink. Instruction for different platforms: See [[IoT LoRaWAN Server>>http://wiki.dragino.com/xwiki/bin/view/Main/]] section.

887

888

== 3.2 General Commands ==

889

890

891

These commands are to configure:

892

893

* General system settings like: uplink interval.

894

* LoRaWAN protocol & radio related command.

895

896

They are same for all Dragino Devices which support DLWS-005 LoRaWAN Stack. These commands can be found on the wiki:

897

898

[[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/End%20Device%20AT%20Commands%20and%20Downlink%20Command/>>http://wiki.dragino.com/xwiki/bin/view/Main/End%20Device%20AT%20Commands%20and%20Downlink%20Command/]]

899

900

901

== 3.3 Commands special design for SN50v3-LB ==

902

903

904

These commands only valid for S31x-LB, as below:

905

906

907

=== 3.3.1 Set Transmit Interval Time ===

908

909

Feature: Change LoRaWAN End Node Transmit Interval.

910

911

(% style="color:blue" %)**AT Command: AT+TDC**

912

913

(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)

914

|=(% style="width: 156px;background-color:#D9E2F3" %)**Command Example**|=(% style="width: 137px;background-color:#D9E2F3" %)**Function**|=(% style="background-color:#D9E2F3" %)**Response**

915

|(% style="width:156px" %)AT+TDC=?|(% style="width:137px" %)Show current transmit Interval|(((

916

30000

917

OK

918

the interval is 30000ms = 30s

919

)))

920

|(% style="width:156px" %)AT+TDC=60000|(% style="width:137px" %)Set Transmit Interval|(((

921

OK

922

Set transmit interval to 60000ms = 60 seconds

923

)))

924

925

(% style="color:blue" %)**Downlink Command: 0x01**

926

927

Format: Command Code (0x01) followed by 3 bytes time value.

928

929

If the downlink payload=0100003C, it means set the END Node's Transmit Interval to 0x00003C=60(S), while type code is 01.

930

931

* Example 1: Downlink Payload: 0100001E ~/~/ Set Transmit Interval (TDC) = 30 seconds

932

* Example 2: Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds

=== ===

=== 3.3.2 Get Device Status ===

937

938

Send a LoRaWAN downlink to ask the device to send its status.

939

940

(% style="color:blue" %)**Downlink Payload: **(%%)0x26 01

941

942

Sensor will upload Device Status via FPORT=5. See payload section for detail.

943

944

945

=== 3.3.3 Set Interrupt Mode ===

946

947

Feature, Set Interrupt mode for GPIO_EXIT.

948

949

(% style="color:blue" %)**AT Command: AT+INTMOD1，AT+INTMOD2，AT+INTMOD3**

950

951

(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)

952

|=(% style="width: 154px;background-color:#D9E2F3" %)**Command Example**|=(% style="width: 196px;background-color:#D9E2F3" %)**Function**|=(% style="width: 157px;background-color:#D9E2F3" %)**Response**

953

|(% style="width:154px" %)AT+INTMOD1=?|(% style="width:196px" %)Show current interrupt mode|(% style="width:157px" %)(((

954

0

955

OK

956

the mode is 0 =Disable Interrupt

957

)))

958

|(% style="width:154px" %)AT+INTMOD1=2|(% style="width:196px" %)(((

959

Set Transmit Interval

960

0. (Disable Interrupt),

961

~1. (Trigger by rising and falling edge)

962

2. (Trigger by falling edge)

963

3. (Trigger by rising edge)

964

)))|(% style="width:157px" %)OK

965

|(% style="width:154px" %)AT+INTMOD2=3|(% style="width:196px" %)(((

966

Set Transmit Interval

967

968

trigger by rising edge.

969

)))|(% style="width:157px" %)OK

970

|(% style="width:154px" %)AT+INTMOD3=0|(% style="width:196px" %)Disable Interrupt|(% style="width:157px" %)OK

971

972

(% style="color:blue" %)**Downlink Command: 0x06**

973

974

Format: Command Code (0x06) followed by 3 bytes.

975

976

This means that the interrupt mode of the end node is set to 0x000003=3 (rising edge trigger), and the type code is 06.

977

978

* Example 1: Downlink Payload: 06000000 **~-~-->** AT+INTMOD1=0

979

* Example 2: Downlink Payload: 06000003 **~-~-->** AT+INTMOD1=3

980

* Example 3: Downlink Payload: 06000102 **~-~-->** AT+INTMOD2=2

981

* Example 4: Downlink Payload: 06000201 **~-~-->** AT+INTMOD3=1

=== ===

=== 3.3.4 Set Power Output Duration ===

986

987

Control the output duration 5V . Before each sampling, device will

988

989

~1. first enable the power output to external sensor,

990

991

2. keep it on as per duration, read sensor value and construct uplink payload

992

993

3. final, close the power output.

994

995

(% style="color:blue" %)**AT Command: AT+5VT**

996

997

(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)

998

|=(% style="width: 154px;background-color:#D9E2F3" %)**Command Example**|=(% style="width: 196px;background-color:#D9E2F3" %)**Function**|=(% style="width: 157px;background-color:#D9E2F3" %)**Response**

999

|(% style="width:154px" %)AT+5VT=?|(% style="width:196px" %)Show 5V open time.|(% style="width:157px" %)(((

500(default)

OK

)))

|(% style="width:154px" %)AT+5VT=1000|(% style="width:196px" %)(((

1005

Close after a delay of 1000 milliseconds.

1006

)))|(% style="width:157px" %)OK

1007

1008

(% style="color:blue" %)**Downlink Command: 0x07**

1009

1010

Format: Command Code (0x07) followed by 2 bytes.

1011

1012

The first and second bytes are the time to turn on.

1013

1014

* Example 1: Downlink Payload: 070000 **~-~-->** AT+5VT=0

1015

* Example 2: Downlink Payload: 0701F4 **~-~-->** AT+5VT=500

=== ===

=== 3.3.5 Set Weighing parameters ===

1020

1021

Feature: Working mode 5 is effective, weight initialization and weight factor setting of HX711.

1022

1023

(% style="color:blue" %)**AT Command: AT+WEIGRE,AT+WEIGAP**

1024

1025

(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)

1026

|=(% style="width: 154px;background-color:#D9E2F3" %)**Command Example**|=(% style="width: 196px;background-color:#D9E2F3" %)**Function**|=(% style="width: 157px;background-color:#D9E2F3" %)**Response**

1027

|(% style="width:154px" %)AT+WEIGRE|(% style="width:196px" %)Weight is initialized to 0.|(% style="width:157px" %)OK

1028

|(% style="width:154px" %)AT+WEIGAP=？|(% style="width:196px" %)400.0|(% style="width:157px" %)OK(default)

1029

|(% style="width:154px" %)AT+WEIGAP=400.3|(% style="width:196px" %)Set the factor to 400.3.|(% style="width:157px" %)OK

1030

1031

(% style="color:blue" %)**Downlink Command: 0x08**

1032

1033

Format: Command Code (0x08) followed by 2 bytes or 4 bytes.

1034

1035

Use AT+WEIGRE when the first byte is 1, only 1 byte. When it is 2, use AT+WEIGAP, there are 3 bytes.

1036

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The second and third bytes are multiplied by 10 times to be the AT+WEIGAP value.

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* Example 1: Downlink Payload: 0801 **~-~-->** AT+WEIGRE

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* Example 2: Downlink Payload: 08020FA3 **~-~-->** AT+WEIGAP=400.3

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* Example 3: Downlink Payload: 08020FA0 **~-~-->** AT+WEIGAP=400.0

=== ===

=== 3.3.6 Set Digital pulse count value ===

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Feature: Set the pulse count value.

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Count 1 is PA8 pin of mode 6 and mode 9. Count 2 is PA4 pin of mode 9.

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(% style="color:blue" %)**AT Command: AT+SETCNT**

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(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)

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|=(% style="width: 154px;background-color:#D9E2F3" %)**Command Example**|=(% style="width: 196px;background-color:#D9E2F3" %)**Function**|=(% style="width: 157px;background-color:#D9E2F3" %)**Response**

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|(% style="width:154px" %)AT+SETCNT=1,100|(% style="width:196px" %)Initialize the count value 1 to 100.|(% style="width:157px" %)OK

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|(% style="width:154px" %)AT+SETCNT=2,0|(% style="width:196px" %)Initialize the count value 2 to 0.|(% style="width:157px" %)OK

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(% style="color:blue" %)**Downlink Command: 0x09**

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Format: Command Code (0x09) followed by 5 bytes.

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The first byte is to select which count value to initialize, and the next four bytes are the count value to be initialized.

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* Example 1: Downlink Payload: 090100000000 **~-~-->** AT+SETCNT=1,0

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* Example 2: Downlink Payload: 0902000003E8 **~-~-->** AT+SETCNT=2,1000

=== ===

=== 3.3.7 Set Workmode ===

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Feature: Switch working mode.

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(% style="color:blue" %)**AT Command: AT+MOD**

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(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)

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|=(% style="width: 154px;background-color:#D9E2F3" %)**Command Example**|=(% style="width: 196px;background-color:#D9E2F3" %)**Function**|=(% style="width: 157px;background-color:#D9E2F3" %)**Response**

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|(% style="width:154px" %)AT+MOD=?|(% style="width:196px" %)Get the current working mode.|(% style="width:157px" %)(((

1078

OK

1079

)))

1080

|(% style="width:154px" %)AT+MOD=4|(% style="width:196px" %)Set the working mode to 3DS18B20s.|(% style="width:157px" %)(((

1081

OK

1082

1083

Attention:Take effect after ATZ

1084

)))

1085

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(% style="color:blue" %)**Downlink Command: 0x0A**

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Format: Command Code (0x0A) followed by 1 bytes.

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* Example 1: Downlink Payload: 0A01 **~-~-->** AT+MOD=1

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* Example 2: Downlink Payload: 0A04 **~-~-->** AT+MOD=4

= =

= 4. Battery & Power Consumption =

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SN50v3-LB use ER26500 + SPC1520 battery pack. See below link for detail information about the battery info and how to replace.

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[[**Battery Info & Power Consumption Analyze**>>http://wiki.dragino.com/xwiki/bin/view/Main/How%20to%20calculate%20the%20battery%20life%20of%20Dragino%20sensors%3F/]] .

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1103

= 5. OTA Firmware update =

1104

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(% class="wikigeneratedid" %)

1107

User can change firmware SN50v3-LB to:

1108

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* Change Frequency band/ region.

1110

* Update with new features.

1111

* Fix bugs.

1112

1113

Firmware and changelog can be downloaded from : **[[Firmware download link>>url:https://www.dropbox.com/sh/kwqv57tp6pejias/AAAopYMATh1GM6fZ-VRCLrpDa?dl=0]]**

1114

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Methods to Update Firmware:

1117

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* (Recommanded way) OTA firmware update via wireless: [[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/Firmware%20OTA%20Update%20for%20Sensors/>>url:http://wiki.dragino.com/xwiki/bin/view/Main/Firmware%20OTA%20Update%20for%20Sensors/]]

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* Update through UART TTL interface.**[[Instruction>>url:http://wiki.dragino.com/xwiki/bin/view/Main/UART%20Access%20for%20LoRa%20ST%20v4%20base%20model/#H1.LoRaSTv4baseHardware]]**.

= 6. FAQ =

== 6.1 Where can i find source code of SN50v3-LB? ==

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* **[[Hardware Source Files>>https://github.com/dragino/Lora/tree/master/LSN50/v3.0]].**

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* **[[Software Source Code & Compile instruction>>https://github.com/dragino/SN50v3]].**

= 7. Order Info =

Part Number: (% style="color:blue" %)**SN50v3-LB-XX-YY**

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(% style="color:red" %)**XX**(%%): The default frequency band

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* (% style="color:red" %)**AS923**(%%): LoRaWAN AS923 band

1136

* (% style="color:red" %)**AU915**(%%): LoRaWAN AU915 band

1137

* (% style="color:red" %)**EU433**(%%): LoRaWAN EU433 band

1138

* (% style="color:red" %)**EU868**(%%): LoRaWAN EU868 band

1139

* (% style="color:red" %)**KR920**(%%): LoRaWAN KR920 band

1140

* (% style="color:red" %)**US915**(%%): LoRaWAN US915 band

1141

* (% style="color:red" %)**IN865**(%%): LoRaWAN IN865 band

1142

* (% style="color:red" %)**CN470**(%%): LoRaWAN CN470 band

1143

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(% style="color:red" %)**YY: ** (%%)Hole Option

1145

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* (% style="color:red" %)**12**(%%): With M12 waterproof cable hole

1147

* (% style="color:red" %)**16**(%%): With M16 waterproof cable hole

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* (% style="color:red" %)**20**(%%): With M20 waterproof cable hole

1149

* (% style="color:red" %)**NH**(%%): No Hole

= 8. Packing Info =

(% style="color:#037691" %)**Package Includes**:

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* SN50v3-LB LoRaWAN Generic Node

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(% style="color:#037691" %)**Dimension and weight**:

* Device Size: cm

* Device Weight: g

* Package Size / pcs : cm

* Weight / pcs : g

= 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.

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* 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.cc>>url:http://../../../../../../D:%5C%E5%B8%82%E5%9C%BA%E8%B5%84%E6%96%99%5C%E8%AF%B4%E6%98%8E%E4%B9%A6%5CLoRa%5CLT%E7%B3%BB%E5%88%97%5Csupport@dragino.cc]]

Wiki source code of SN50v3-LB LoRaWAN Sensor Node User Manual

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