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LSN50v2-D20-D22-D23 LoRaWAN Temperature Sensor Manual
Document Version: 2.0.a
Image Version: v1.7.2
Version
Description
1.0
Release
1.1
Add power on info and jumper info.
2.0
Add LSN50v2-D22, D23 models
2.0.a
Modify Temperature sensor decription
LSN50V2-D2x LoRaWAN Waterproof, Outdoor Temperature Sensor
www.dragino.com
Date
2020-Nov-10
2021-Feb-5
2021-Aug-22
2022-Mar-15
1 / 23
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Summary of Contents for Dragino LSN50v2-D20
- Page 1 LSN50v2-D20-D22-D23 LoRaWAN Temperature Sensor Manual Document Version: 2.0.a Image Version: v1.7.2 Version Description Date Release 2020-Nov-10 Add power on info and jumper info. 2021-Feb-5 Add LSN50v2-D22, D23 models 2021-Aug-22 2.0.a Modify Temperature sensor decription 2022-Mar-15 LSN50V2-D2x LoRaWAN Waterproof, Outdoor Temperature Sensor...
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Page 2: Table Of Contents
Battery Info ....................错误!未定义书签。 Use AT Command ........................21 Access AT Command ......................... 21 FAQ ............................22 What is the frequency range of LSN50v2-D20? ................ 22 What is the Frequency Plan? ....................22 LSN50V2-D2x LoRaWAN Waterproof, Outdoor Temperature Sensor 2 / 23... - Page 3 How to update the firmware? ....................22 Order Info ..........................23 Packing Info ..........................23 Support ........................... 23 LSN50V2-D2x LoRaWAN Waterproof, Outdoor Temperature Sensor 3 / 23...
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Page 4: Introduction
1. Introduction What is LSN50V2-D2x LoRaWAN Temperature Sensor The Dragino LSN50v2-D2x is a LoRaWAN Temperature Sensor for Internet of Things solution. It can be used to measure the temperature of air, liquid or object, and then upload to IoT server via LoRaWAN wireless protocol. -
Page 5: Specifications
Specifications Common DC Characteristics: ➢ Supply Voltage: built in 8500mAh Li-SOCI2 battery ➢ Operating Temperature: -40 ~ 85°C Temperature Sensor: ➢ Range: -55 to + 125°C ➢ Accuracy ±0.5°C (max ±2.0 °C). LoRa Spec: ➢ Frequency Range, ✓ Band 1 (HF): 862 ~ 1020 Mhz ➢... - Page 6 ✓ Wireless Alarm and Security Systems ✓ Home and Building Automation ✓ Industrial Monitoring and Control ✓ Long range Irrigation Systems. Hardware Variant Model Photo Probe Info LSN50v2 D20 1 x DS28B20 Probe Cable Length : 2 meters sensor cable is made by Silica Gel for higher temperature tolerance.
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Page 7: Pin Definitions And Switch
1.6 Pin Definitions and Switch 1.6.1 Pin Definition The device is pre-configured to connect to temperature sensor. The other pins are not used. If user want to know more about other pins, please refer the user manual of LSn50v2 at: http://www.dragino.com/downloads/index.php?dir=LSN50-LoRaST/... -
Page 8: Hardware Change Log
2) Send an uplink packet Hardware Change log LSN50v2-D20 v1.0: Release. LSN50V2-D2x LoRaWAN Waterproof, Outdoor Temperature Sensor 8 / 23... -
Page 9: How To Use Lsn50V2-D20
2. How to use LSN50v2-D20? How it works? The LSN50v2-D20 is working as LoRaWAN OTAA Class A end node. Each LSN50v2-D20 is shipped with a worldwide unique set of OTAA and ABP keys. User needs to input the OTAA or ABP keys in the LoRaWAN network server to register. - Page 10 Input these keys in their LoRaWAN Server portal. Below is TTN screen shot: Add APP EUI in the application Add APP KEY and DEV EUI LSN50V2-D2x LoRaWAN Waterproof, Outdoor Temperature Sensor 10 / 23...
- Page 11 Step 2: Power on LSN50V2-D20 Step 3: LSN50V2-D20 will auto join to TTN network via the LoRaWAN coverage by DLOS8. After join success, LSN50V2-D20 will start to uplink temperature value to server. LSN50V2-D2x LoRaWAN Waterproof, Outdoor Temperature Sensor 11 / 23...
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Page 12: Uplink Payload
Uplink Payload 2.3.1 Payload Analyze Normal Upload Payload: LSN50v2-D2x use the same payload as LSn50v2 mod1, as below. Size(bytes) Value Battery Temp Red Ignore Alarm Flag Temp_White Temp_Black or Temp White 改为 TTNV3 Battery: Check the battery voltage. Ex1: 0x0B45 = 2885mV... -
Page 13: Payload Decoder File
In TTN, use can add a custom payload so it shows friendly. In the page Applications --> Payload Formats --> Custom --> decoder to add the decoder from: http://www.dragino.com/downloads/index.php?dir=LoRa_End_Node/LSN50v2-D20/Decoder/ Temperature Alarm Feature LSN50V2-D20 work flow with Alarm feature. LSN50V2-D2x LoRaWAN Waterproof, Outdoor Temperature Sensor 13 / 23... -
Page 14: Configure Lsn50V2-D20
LSN50v2-D20 will send an Alarm packet base on Confirmed Uplink Mode to server. Below is an example of the Alarm Packet. Configure LSN50v2-D20 LSN50V2-D20 supports configuration via LoRaWAN downlink command or AT Commands. ➢ Downlink command instructions for different platform: http://wiki.dragino.com/index.php?title=Main_Page#Use_Note_for_Server ➢... - Page 15 ➢ AT Command: Set All Probes: AT+18ALARM=min,max When min=0, and max≠0, Alarm trigger when higher than max When min≠0, and max=0, Alarm trigger when lower than min When min≠0 and max≠0, Alarm trigger when higher than max or lower than min...
- Page 16 Example: Explain: ➢ Alarm & MOD bit is 0x7C, 0x7C >> 2 = 0x31: Means this message is the Alarm settings message. LSN50V2-D2x LoRaWAN Waterproof, Outdoor Temperature Sensor 16 / 23...
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Page 17: Led Status
LED Status LSN50-v2-D20 has an internal LED, it will active in below situation: ➢ LED will fast blink 5 times when boot, this means the temperature sensor is detected ➢ After the fast blinks on boot, the LED will flash once which means device is trying to send Join Packet to the network. - Page 18 And make sure the positive and negative pins match. 3.3 Power Consumption Analyze Dragino Battery powered product are all runs in Low Power mode. We have an update battery calculator which base on the measurement of the real device. User can use this calculator to check the battery life and calculate the battery life if want to use different transmit interval.
- Page 19 Instruction to use as below: Step 1: Downlink the up-to-date DRAGINO_Battery_Life_Prediction_Table.xlsx from: https://www.dragino.com/downloads/index.php?dir=LoRa_End_Node/Battery_Analyze/ Step 2: Open it and choose ➢ Product Model ➢ Uplink Interval ➢ Working Mode And the Life expectation in difference case will be shown on the right.
- Page 20 3.3.2 Replace the battery You can change the battery in the LSN50V2-D2X.The type of battery is not limited as long as the output is between 3v to 3.6v. On the main board, there is a diode (D1) between the battery and the main circuit.
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Page 21: Use At Command
4. Use AT Command Access AT Command User can use a USB to TTL adapter to connect to LSN50V2-D20 to use AT command to configure the device. Example is as below: LSN50V2-D2x LoRaWAN Waterproof, Outdoor Temperature Sensor 21 / 23... -
Page 22: Faq
5. FAQ What is the frequency range of LSN50v2-D20? Different LSN50V2-D20 version supports different frequency range, below is the table for the working frequency and recommend bands for each model: Version LoRa IC Working Frequency Best Tune Recommend Bands... - Page 23 6. Order Info Part Number: LSN50V2-D20-XXX (Signal Probe) Or LSN50V2-D22-XXX (Dual Probe) Or LSN50V2-D23-XXX (Triple Probe) XXX: The default frequency band ✓ AS923: LoRaWAN AS923 band ✓ AU915: LoRaWAN AU915 band ✓ EU433: LoRaWAN EU433 band ✓ EU868: LoRaWAN EU868 band ✓...
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