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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|(% 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-20230610163213-1.png||height="404" width="699"]]

== 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]]

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== 1.9 Hole Option ==

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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 SN50v3-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-LB to send device configure detail, include device configure status. SN50v3-LB 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-LB, 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-LB has different working mode for the connections of different type of sensors. This section describes these modes. Use can use the AT Command (% style="color:blue" %)**AT+MOD**(%%) to set SN50v3-LB to different working modes.

For example:

(% style="color:blue" %)**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 (% style="color:blue" %)**DR0**(%%). Server sides will see NULL payload while SN50v3-LB transmit in DR0 with 12 bytes payload.

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

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3. 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; 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:90px" %)**1**|(% style="background-color:#d9e2f3; color:#0070c0; width:130px" %)**2**|(% style="background-color:#d9e2f3; color:#0070c0; width:80px" %)**2**

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

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Temperature(DS18B20)(PC13)

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

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ADC(PA4)

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

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Digital in(PB15)&Digital Interrupt(PA8)

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

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Temperature(SHT20 or SHT31 or BH1750 Illumination Sensor)

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

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Humidity(SHT20 or SHT31)

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)))

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

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|(% style="background-color:#d9e2f3; color:#0070c0; width:50px" %)**Size(bytes)**|(% style="background-color:#d9e2f3; color:#0070c0; width:30px" %)**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**

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

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Temperature(DS18B20)(PC13)

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

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ADC(PA4)

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

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Digital in(PB15) & Digital Interrupt(PA8)

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

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Distance measure by: 1) LIDAR-Lite V3HP

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Or 2) Ultrasonic Sensor

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)))|(% 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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(% style="color:blue" %)**Connection of LIDAR-Lite V3HP:**

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

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(% style="color:blue" %)**Connection to Ultrasonic Sensor:**

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

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|(% 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**

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

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Temperature(DS18B20)(PC13)

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

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Digital in(PB15) & Digital Interrupt(PA8)

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

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ADC(PA4)

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

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Distance measure by:1)TF-Mini plus LiDAR

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Or 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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(% style="color:red" %)**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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(% style="color:red" %)**Need to remove R3 and R4 resistors to get low power,otherwise there will be 400uA standby current.**

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[[image:image-20230610170047-1.png||height="452" width="799"]]

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

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|=(% style="width: 50px;background-color:#D9E2F3;color:#0070C0" %)(((

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**Size(bytes)**

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)))|=(% style="width: 50px;background-color:#D9E2F3;color:#0070C0" %)**2**|=(% style="width: 50px;background-color:#D9E2F3;color:#0070C0" %)**2**|=(% style="width: 50px;background-color:#D9E2F3;color:#0070C0" %)**2**|=(% style="width: 90px;background-color:#D9E2F3;color:#0070C0" %)**1**|=(% style="width: 110px;background-color:#D9E2F3;color:#0070C0" %)2|=(% style="width: 100px;background-color:#D9E2F3;color:#0070C0" %)2|=(% style="width: 20px;background-color:#D9E2F3;color:#0070C0" %)1

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

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ADC1(PA4)

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

ADC2(PA5)

)))|(((

ADC3(PA8)

)))|(((

Digital Interrupt(PB15)

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

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Temperature(SHT20 or SHT31 or BH1750 Illumination Sensor)

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

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Humidity(SHT20 or SHT31)

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

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|(% 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**

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

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Temperature1(DS18B20)(PC13)

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

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ADC(PA4)

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

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Digital in(PB15) & Digital Interrupt(PA8)

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

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

429

430

431

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

432

433

434

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

435

436

437

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

438

439

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

440

441

1. Zero calibration. Don't put anything on load cell and run (% style="color:blue" %)**AT+WEIGRE**(%%) to calibrate to Zero gram.

442

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

443

1. (((

444

Weight has 4 bytes, the unit is g.

)))

For example:

(% style="color:blue" %)**AT+GETSENSORVALUE =0**

453

454

Response: Weight is 401 g

455

456

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

457

458

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

459

|=(% style="width: 50px;background-color:#D9E2F3;color:#0070C0" %)(((

460

**Size(bytes)**

461

)))|=(% style="width: 20px;background-color:#D9E2F3;color:#0070C0" %)**2**|=(% style="width: 150px;background-color:#D9E2F3;color:#0070C0" %)**2**|=(% style="width: 50px;background-color:#D9E2F3;color:#0070C0" %)**2**|=(% style="width: 200px;background-color:#D9E2F3;color:#0070C0" %)**1**|=(% style="width: 50px;background-color:#D9E2F3;color:#0070C0" %)**4**

462

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

463

Temperature(DS18B20)(PC13)

464

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

465

ADC(PA4)

466

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

467

Digital in(PB15) & Digital Interrupt(PA8)

468

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

469

470

[[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) ====

475

476

477

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.

478

479

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.

480

481

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

482

483

484

(% 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.**

485

486

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

487

|=(% style="width: 60px;background-color:#D9E2F3;color:#0070C0" %)**Size(bytes)**|=(% style="width: 40px;background-color:#D9E2F3;color:#0070C0" %)**2**|=(% style="width: 180px;background-color:#D9E2F3;color:#0070C0" %)**2**|=(% style="width: 60px;background-color:#D9E2F3;color:#0070C0" %)**2**|=(% style="width: 100px;background-color:#D9E2F3;color:#0070C0" %)**1**|=(% style="width: 80px;background-color:#D9E2F3;color:#0070C0" %)**4**

488

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

489

Temperature(DS18B20)(PC13)

490

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

491

ADC(PA4)

492

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

493

Digital in(PB15)

494

)))|(% 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"]]

499

500

501

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

502

503

504

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

505

|=(% style="width: 50px;background-color:#D9E2F3;color:#0070C0" %)(((

506

**Size(bytes)**

507

)))|=(% style="width: 20px;background-color:#D9E2F3;color:#0070C0" %)**2**|=(% style="width: 90px;background-color:#D9E2F3;color:#0070C0" %)**2**|=(% style="width: 50px;background-color:#D9E2F3;color:#0070C0" %)**2**|=(% style="width: 90px;background-color:#D9E2F3;color:#0070C0" %)**1**|=(% style="width: 90px;background-color:#D9E2F3;color:#0070C0" %)**1**|=(% style="width: 90px;background-color:#D9E2F3;color:#0070C0" %)1|=(% style="width: 40px;background-color:#D9E2F3;color:#0070C0" %)2

508

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

509

Temperature(DS18B20)

510

(PC13)

511

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

512

ADC(PA5)

513

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

514

Digital Interrupt1(PA8)

515

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

516

517

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

518

519

520

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

521

522

523

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

524

|=(% style="width: 50px;background-color:#D9E2F3;color:#0070C0" %)(((

525

**Size(bytes)**

526

)))|=(% style="width: 30px;background-color:#D9E2F3;color:#0070C0" %)**2**|=(% style="width: 110px;background-color:#D9E2F3;color:#0070C0" %)**2**|=(% style="width: 70px;background-color:#D9E2F3;color:#0070C0" %)**2**|=(% style="width: 120px;background-color:#D9E2F3;color:#0070C0" %)**1**|=(% style="width: 70px;background-color:#D9E2F3;color:#0070C0" %)**2**|=(% style="width: 70px;background-color:#D9E2F3;color:#0070C0" %)2

527

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

528

Temperature(DS18B20)

529

(PC13)

530

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

531

ADC1(PA4)

532

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

533

Digital Interrupt(PB15)

534

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

535

ADC2(PA5)

536

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

ADC3(PA8)

)))

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

541

542

543

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

544

545

546

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

547

|=(% style="width: 50px;background-color:#D9E2F3;color:#0070C0" %)(((

548

**Size(bytes)**

549

)))|=(% style="width: 20px;background-color:#D9E2F3;color:#0070C0" %)**2**|=(% style="width: 90px;background-color:#D9E2F3;color:#0070C0" %)**2**|=(% style="width: 90px;background-color:#D9E2F3;color:#0070C0" %)**2**|=(% style="width: 60px;background-color:#D9E2F3;color:#0070C0" %)**1**|=(% style="width: 90px;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|(((

Temperature

(DS18B20)(PC13)

)))|(((

Temperature2

(DS18B20)(PB9)

)))|(((

Digital Interrupt

(PB15)

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

560

Temperature3

561

(DS18B20)(PB8)

562

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

563

Count1(PA8)

564

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

Count2(PA4)

)))

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

569

570

(% style="color:blue" %)**The newly added AT command is issued correspondingly:**

571

572

(% style="color:#037691" %)** AT+INTMOD1 PA8**(%%) pin： Corresponding downlink: (% style="color:#037691" %)**06 00 00 xx**

573

574

(% style="color:#037691" %)** AT+INTMOD2 PA4**(%%) pin： Corresponding downlink: (% style="color:#037691" %)**06 00 01 xx**

575

576

(% style="color:#037691" %)** AT+INTMOD3 PB15**(%%) pin： Corresponding downlink: (% style="color:#037691" %)** 06 00 02 xx**

577

578

579

(% style="color:blue" %)**AT+SETCNT=aa,bb**

580

581

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

582

583

When AA is 2, set the count of PA4 pin to BB Corresponding downlink：09 02 bb bb bb bb

584

585

586

=== 2.3.3 Decode payload ===

587

588

589

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

590

591

[[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"]]

592

593

The payload decoder function for TTN V3 are here:

594

595

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

596

597

598

==== 2.3.3.1 Battery Info ====

599

600

601

Check the battery voltage for SN50v3-LB.

Ex1: 0x0B45 = 2885mV

Ex2: 0x0B49 = 2889mV

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

609

610

611

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

612

613

More DS18B20 can check the [[3 DS18B20 mode>>||anchor="H2.3.2.4MOD3D4283xDS18B2029"]]

614

615

(% style="color:blue" %)**Connection:**

616

617

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

618

619

620

(% style="color:blue" %)**Example**:

621

622

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

623

624

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

625

626

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

627

628

629

==== 2.3.3.3 Digital Input ====

630

631

632

The digital input for pin PB15,

633

634

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

635

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

636

637

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

638

(((

639

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

640

641

(% style="color:red" %)**Note: The maximum voltage input supports 3.6V.**

)))

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

647

648

649

The measuring range of the ADC is only about 0.1V to 1.1V The voltage resolution is about 0.24mv.

650

651

When the measured output voltage of the sensor is not within the range of 0.1V 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.

652

653

[[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"]]

654

655

656

(% 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.**

657

658

659

The position of PA5 on the hardware after **LSN50 v3.3** is changed to the position shown in the figure below, and the collected voltage becomes one-sixth of the original.

660

661

[[image:image-20230811113449-1.png||height="370" width="608"]]

662

663

==== 2.3.3.5 Digital Interrupt ====

664

665

666

Digital Interrupt refers to pin PA8, and there are different trigger methods. When there is a trigger, the SN50v3-LB will send a packet to the server.

667

668

(% style="color:blue" %)** Interrupt connection method:**

669

670

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

671

672

673

(% style="color:blue" %)**Example to use with door sensor :**

674

675

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.

676

677

[[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"]]

678

679

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 SN50v3-LB interrupt interface to detect the status for the door or window.

680

681

682

(% style="color:blue" %)**Below is the installation example:**

683

684

Fix one piece of the magnetic sensor to the door and connect the two pins to SN50v3-LB as follows:

685

686

* (((

687

One pin to SN50v3-LB's PA8 pin

688

)))

689

* (((

690

The other pin to SN50v3-LB's VDD pin

691

)))

692

693

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.

694

695

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.

696

697

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.

698

699

[[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"]]

700

701

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

702

703

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:

(% 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]]**. **)

708

709

Below shows some screen captures in TTN V3:

710

711

[[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"]]

712

713

714

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

715

716

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

717

718

719

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

720

721

722

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

723

724

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

725

726

(% style="color:red" %)**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 SN50v3-LB will be a good reference.**

727

728

729

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

730

731

[[image:image-20230610170152-2.png||height="501" width="846"]]

732

733

734

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

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

737

738

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

**Example:**

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

743

744

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

745

746

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

747

748

749

==== 2.3.3.7 Distance Reading ====

750

751

752

Refer [[Ultrasonic Sensor section>>||anchor="H2.3.3.8UltrasonicSensor"]].

753

754

755

==== 2.3.3.8 Ultrasonic Sensor ====

756

757

758

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]]

759

760

The SN50v3-LB 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.

761

762

The working principle of this sensor is similar to the (% style="color:blue" %)**HC-SR04**(%%) ultrasonic sensor.

763

764

The picture below shows the connection:

765

766

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

767

768

769

Connect to the SN50v3-LB and run (% style="color:blue" %)**AT+MOD=2**(%%) to switch to ultrasonic mode (ULT).

770

771

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

776

777

778

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

779

780

781

The BAT pin of SN50v3-LB 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.

782

783

784

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

785

786

787

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

788

789

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

790

791

(% style="color:blue" %)**AT+5VT=1000**

792

793

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

794

795

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.

796

797

798

==== 2.3.3.11 BH1750 Illumination Sensor ====

799

800

801

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

802

803

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

804

805

806

[[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"]]

807

808

809

==== 2.3.3.12 Working MOD ====

810

811

812

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

813

814

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

815

816

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 ==

830

831

832

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

833

834

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

835

836

[[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]]

837

838

839

== 2.5 Frequency Plans ==

840

841

842

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.

843

844

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

845

846

847

= 3. Configure SN50v3-LB =

848

849

== 3.1 Configure Methods ==

850

851

852

SN50v3-LB supports below configure method:

853

854

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

855

* 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]].

856

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

857

858

859

== 3.2 General Commands ==

860

861

862

These commands are to configure:

863

864

* General system settings like: uplink interval.

865

* LoRaWAN protocol & radio related command.

866

867

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

868

869

[[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/]]

870

871

872

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

873

874

875

These commands only valid for SN50v3-LB, as below:

876

877

878

=== 3.3.1 Set Transmit Interval Time ===

879

880

881

Feature: Change LoRaWAN End Node Transmit Interval.

882

883

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

884

885

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

886

|=(% style="width: 156px;background-color:#D9E2F3;color:#0070C0" %)**Command Example**|=(% style="width: 137px;background-color:#D9E2F3;color:#0070C0" %)**Function**|=(% style="background-color:#D9E2F3;color:#0070C0" %)**Response**

887

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

888

30000

889

OK

890

the interval is 30000ms = 30s

891

)))

892

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

893

OK

894

Set transmit interval to 60000ms = 60 seconds

895

)))

896

897

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

898

899

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

900

901

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

902

903

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

904

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

905

906

907

=== 3.3.2 Get Device Status ===

908

909

910

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

911

912

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

913

914

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

915

916

917

=== 3.3.3 Set Interrupt Mode ===

918

919

920

Feature, Set Interrupt mode for GPIO_EXIT.

921

922

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

923

924

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

925

|=(% style="width: 155px;background-color:#D9E2F3;color:#0070C0" %)**Command Example**|=(% style="width: 197px;background-color:#D9E2F3;color:#0070C0" %)**Function**|=(% style="width: 158px;background-color:#D9E2F3;color:#0070C0" %)**Response**

926

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

927

0

928

OK

929

the mode is 0 =Disable Interrupt

930

)))

931

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

932

Set Transmit Interval

933

0. (Disable Interrupt),

934

~1. (Trigger by rising and falling edge)

935

2. (Trigger by falling edge)

936

3. (Trigger by rising edge)

937

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

938

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

939

Set Transmit Interval

940

trigger by rising edge.

941

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

942

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

943

944

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

945

946

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

947

948

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

949

950

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

951

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

952

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

953

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

954

955

956

=== 3.3.4 Set Power Output Duration ===

957

958

959

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

960

961

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

962

963

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

964

965

3. final, close the power output.

966

967

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

968

969

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

970

|=(% style="width: 155px;background-color:#D9E2F3;color:#0070C0" %)**Command Example**|=(% style="width: 197px;background-color:#D9E2F3;color:#0070C0" %)**Function**|=(% style="width: 158px;background-color:#D9E2F3;color:#0070C0" %)**Response**

971

|(% 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" %)(((

976

Close after a delay of 1000 milliseconds.

977

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

978

979

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

980

981

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

982

983

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

984

985

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

986

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

987

988

989

=== 3.3.5 Set Weighing parameters ===

990

991

992

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

993

994

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

995

996

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

997

|=(% style="width: 155px;background-color:#D9E2F3;color:#0070C0" %)**Command Example**|=(% style="width: 197px;background-color:#D9E2F3;color:#0070C0" %)**Function**|=(% style="width: 158px;background-color:#D9E2F3;color:#0070C0" %)**Response**

998

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

999

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

1000

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

1001

1002

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

1003

1004

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

1005

1006

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

1007

1008

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

1009

1010

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

1011

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

1012

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

1013

1014

1015

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

1016

1017

1018

Feature: Set the pulse count value.

1019

1020

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

1021

1022

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

1023

1024

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

1025

|=(% style="width: 155px;background-color:#D9E2F3;color:#0070C0" %)**Command Example**|=(% style="width: 197px;background-color:#D9E2F3;color:#0070C0" %)**Function**|=(% style="width: 158px;background-color:#D9E2F3;color:#0070C0" %)**Response**

1026

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

1027

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

1028

1029

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

1030

1031

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

1032

1033

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

1034

1035

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

1036

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

1037

1038

1039

=== 3.3.7 Set Workmode ===

1040

1041

1042

Feature: Switch working mode.

1043

1044

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

1045

1046

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

1047

|=(% style="width: 155px;background-color:#D9E2F3;color:#0070C0" %)**Command Example**|=(% style="width: 197px;background-color:#D9E2F3;color:#0070C0" %)**Function**|=(% style="width: 158px;background-color:#D9E2F3;color:#0070C0" %)**Response**

1048

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

1049

OK

1050

)))

1051

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

1052

OK

1053

Attention:Take effect after ATZ

1054

)))

1055

1056

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

1057

1058

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

1059

1060

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

1061

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

1062

1063

1064

= 4. Battery & Power Consumption =

1065

1066

1067

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

1068

1069

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

1070

1071

1072

= 5. OTA Firmware update =

1073

1074

1075

(% class="wikigeneratedid" %)

1076

**User can change firmware SN50v3-LB to:**

1077

1078

* Change Frequency band/ region.

1079

* Update with new features.

1080

* Fix bugs.

1081

1082

**Firmware and changelog can be downloaded from :** **[[Firmware download link>>https://www.dropbox.com/sh/4rov7bcp6u28exp/AACt-wAySd4si5AXi8DBmvSca?dl=0]]**

1083

1084

**Methods to Update Firmware:**

1085

1086

* (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/]]**

1087

* 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? ==

1093

1094

1095

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

1096

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

1097

1098

1099

== 6.2 How to generate PWM Output in SN50v3-LB? ==

1100

1101

1102

See this document: **[[Generate PWM Output on SN50v3>>https://www.dropbox.com/scl/fi/r3trcet2knujg40w0mgyn/Generate-PWM-Output-on-SN50v3.pdf?rlkey=rxsgmrhhrv62iiiwjq9sv10bn&dl=0]]**.

1103

1104

1105

== 6.3 How to put several sensors to a SN50v3-LB? ==

1106

1107

1108

When we want to put several sensors to A SN50v3-LB, the waterproof at the grand connector will become an issue. User can try to exchange the grand connector to below type.

1109

1110

[[Reference Supplier>>https://www.yscableglands.com/cable-glands/nylon-cable-glands/cable-gland-rubber-seal.html]].

1111

1112

[[image:image-20230810121434-1.png||height="242" width="656"]]

= 7. Order Info =

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

1119

1120

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

1121

1122

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

1123

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

1124

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

1125

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

1126

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

1127

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

1128

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

1129

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

1130

1131

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

1132

1133

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

1134

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

1135

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

1136

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

= 8. Packing Info =

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

1143

1144

* SN50v3-LB LoRaWAN Generic Node

1145

1146

(% 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.

1157

1158

* 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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