DirekTronik LWL02 User manual

LWL02 - LoRaWAN Water Leak Sensor User Manual
last modified by Xiaoling
on 2022/12/27 16:58

User Manual for LoRaWAN End Nodes - LWL02 - LoRaWAN Water Leak Sensor User Manual
Table of Contents
1. Introduction .......................................................................................................................................................................... 4
1.1 What is LWL02 LoRaWAN Water Leak Sensor ....................................................................................................... 4
1.2 Features .......................................................................................................................................................................... 4
1.3 Applications .................................................................................................................................................................... 4
1.4 Dimension ....................................................................................................................................................................... 4
1.5 Firmware Change log ................................................................................................................................................... 5
2. Power ON LWL02 .............................................................................................................................................................. 5
3. How to install LWL02 ........................................................................................................................................................ 5
4. Operation Mode .................................................................................................................................................................. 6
4.1 How it works? ................................................................................................................................................................ 6
4.2 Example to join LoRaWAN network ........................................................................................................................... 7
4.3 Uplink Payload ............................................................................................................................................................. 10
4.4 Downlink Payload ........................................................................................................................................................ 11
Type Code 0x01 .............................................................................................................................................................. 11
Type Code 0x04 .............................................................................................................................................................. 11
Type Code 0x05 .............................................................................................................................................................. 11
Type Code 0xA6 ............................................................................................................................................................. 12
Type Code 0xA7 ............................................................................................................................................................. 12
Type Code 0xA8 ............................................................................................................................................................. 12
Type Code 0xA9 ............................................................................................................................................................. 12
4.5 Integrate with Datacake ............................................................................................................................................. 12
4.6 Alarm Base on Timeout .............................................................................................................................................. 15
4.7 LEDs ............................................................................................................................................................................. 16
5. Battery & How to replace ................................................................................................................................................ 16
5.1 Battery Type and replace ........................................................................................................................................... 16
5.2 Power Consumption Analyze ..................................................................................................................................... 16
6. Use AT Command ........................................................................................................................................................... 16
6.1 Access AT Command ................................................................................................................................................ 16
7. FAQ .................................................................................................................................................................................... 18
7.1 How to upgrade the image? ...................................................................................................................................... 18
7.2 How to change the LoRa Frequency Bands/Region? ............................................................................................ 18
7.3 Can I disable uplink for each event to save battery life? ....................................................................................... 18
7.4 How to change Sub-Band for LWL02? .................................................................................................................... 19
7.5 My sensor works for Helium AU915 before but not it doesn't work, Why? .......................................................... 19
8. Order Info .......................................................................................................................................................................... 19
9. Packing Info ...................................................................................................................................................................... 20
10. Support ............................................................................................................................................................................ 20
Page 2 / 20 - last modified by Xiaoling on 2022/12/27 16:58

User Manual for LoRaWAN End Nodes - LWL02 - LoRaWAN Water Leak Sensor User Manual
Table of Contents:
•1. Introduction
•1.1 What is LWL02 LoRaWAN Water Leak Sensor
•1.2 Features
•1.3 Applications
•1.4 Dimension
•1.5 Firmware Change log
•2. Power ON LWL02
•3. How to install LWL02
•4. Operation Mode
•4.1 How it works?
•4.2 Example to join LoRaWAN network
•4.3 Uplink Payload
•4.4 Downlink Payload
•Type Code 0x01
•Type Code 0x04
•Type Code 0x05
•Type Code 0xA6
•Type Code 0xA7
•Type Code 0xA8
•Type Code 0xA9
•4.5 Integrate with Datacake
•4.6 Alarm Base on Timeout
•4.7 LEDs
•5. Battery & How to replace
•5.1 Battery Type and replace
•5.2 Power Consumption Analyze
•6. Use AT Command
•6.1 Access AT Command
•7. FAQ
•7.1 How to upgrade the image?
•7.2 How to change the LoRa Frequency Bands/Region?
•7.3 Can I disable uplink for each event to save battery life?
•7.4 How to change Sub-Band for LWL02?
•7.5 My sensor works for Helium AU915 before but not it doesn't work, Why?
•8. Order Info
•9. Packing Info
•10. Support
Page 3 / 20 - last modified by Xiaoling on 2022/12/27 16:58

User Manual for LoRaWAN End Nodes - LWL02 - LoRaWAN Water Leak Sensor User Manual
1. Introduction
1.1 What is LWL02 LoRaWAN Water Leak Sensor
The Dragino LWL02 is a LoRaWAN Water Sensor. When there is water between the two metal probes, LWL02
indicates a water leak event and uplink to IoT server via LoRaWAN network.
LWL02 is powered by 2 x AAA batteries and target for long time use, these two batteries can provide about 16,000
~ 70,000 uplink packets, which result in 2 ~ 10 years battery life. After battery running out, user can easily open the
enclosure and replace with 2 common AAA batteries.
The LWL02 will send periodically data every day as well as for each water leak event. It also counts the water
leak times and calculate last water leak duration. User can also disable the uplink for each water leak event,
instead, device can count each event and uplink periodically.
Each LWL02 is pre-load with a set of unique keys for LoRaWAN registration, register these keys to LoRaWAN
server and it will auto connect after power on.
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1.2 Features
• LoRaWAN Class A v1.0.3
• Frequency Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915/IN865/RU864
• SX1262 LoRa Core
• Water Leak detect
• 2 x AAA LR03 Batteries
• AT Commands to change parameters
• Uplink on periodically and open/close action
• Remote configure parameters via LoRa Downlink
• Firmware upgradable via program port
1.3 Applications
• Smart Buildings & Home Automation
• Logistics and Supply Chain Management
• Smart Metering
• Smart Agriculture
• Smart Cities
• Smart Factory
1.4 Dimension
Page 4 / 20 - last modified by Xiaoling on 2022/12/27 16:58

User Manual for LoRaWAN End Nodes - LWL02 - LoRaWAN Water Leak Sensor User Manual
1.5 Firmware Change log
LWL02 use the same firmware as LDS01:https://www.dropbox.com/sh/6ls5i0zsvujvbc8/
AABe3V5aQXdy7zSxEdEA3DHOa?dl=0

2. Power ON LWL02
When receive the LWL02, please open the enclosure and add 2 x AAA batteries to power it. The LED will blink
when device is powered.
3. How to install LWL02
When install the LWL02 on wall. Please install as below so the water leak probe will be soak in water for water
detect purpose. The LWL02 main body is not water proof. Please don't let water go inside the LWL02 main body.
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Page 5 / 20 - last modified by Xiaoling on 2022/12/27 16:58