Changes for page LWL02 -- LoRaWAN Water Leak Sensor User Manual
Last modified by Mengting Qiu on 2024/05/29 11:20
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... ... @@ -1,31 +1,36 @@ 1 -(% style="text-align:center" %) 2 -[[image:1654669760488-506.png||height="510" width="769"]] 1 + 3 3 4 4 5 5 6 6 6 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image001.png]] 7 7 8 8 9 9 10 -= 1. Introduction = 11 11 12 -== 1.1 What is LWL02 LoRaWAN Water Leak Sensor == 13 13 14 14 15 -The Dragino LWL02 is a (% style="color:#4f81bd" %)**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. 16 16 17 -LWL02 is powered by (% style="color:#4f81bd" %)**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. 14 +1. Introduction 15 +11. What is LWL02 LoRaWAN Water Leak Sensor 18 18 19 -The LWL02 willsendperiodicallydataeveryday as well asforeachwater leak event.Italso (% style="color:#4f81bd"%)**countsthewaterleaktimes**(%%) and(% style="color:#4f81bd"%)**calculate lastwaterleakduration**(%%). User can alsodisabletheuplink for eachwater leak event,instead,device cancounteacheventanduplinkperiodically.17 +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. 20 20 21 -Each LWL02 is (% style="color:#4f81bd" %)**pre-load with a set of unique keys**(%%) for LoRaWAN registration, register these keys to 22 22 20 +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. 21 + 22 + 23 +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. 24 + 25 + 26 +Each LWL02 is pre-load with a set of unique keys for LoRaWAN registration, register these keys to 27 + 23 23 LoRaWAN server and it will auto connect after power on. [[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image002.png]] 24 24 25 25 26 26 27 27 28 -* 33 +* 29 29 *1. Features 30 30 * LoRaWAN Class A v1.0.3 31 31 * Frequency Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915/IN865/RU864 ... ... @@ -37,7 +37,7 @@ 37 37 * Remote configure parameters via LoRa Downlink 38 38 * Firmware upgradable via program port 39 39 40 -* 45 +* 41 41 *1. Applications 42 42 * Smart Buildings & Home Automation 43 43 * Logistics and Supply Chain Management ... ... @@ -46,7 +46,7 @@ 46 46 * Smart Cities 47 47 * Smart Factory 48 48 49 -1. 54 +1. 50 50 11. Dimension 51 51 52 52 [[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image003.png]] ... ... @@ -97,7 +97,7 @@ 97 97 In case user can’t set the OTAA keys in the network server and has to use the existing keys from server. User can [[use AT Command>>path:#AT_Command]] to set the keys in the devices. 98 98 99 99 100 -1. 105 +1. 101 101 11. Example to join LoRaWAN network 102 102 103 103 Here shows an example for how to join the [[TTN V3 Network>>url:https://eu1.cloud.thethings.network/]]. Below is the network structure, we use [[LG308>>url:http://www.dragino.com/products/lora-lorawan-gateway/item/140-lg308.html]] as LoRaWAN gateway here. ... ... @@ -113,6 +113,7 @@ 113 113 * A periodically update at every 10 minutes when in water leak. 114 114 * A message when switch from water leak to none water leak. ([[Alarm event can be disabled>>path:#Alarm]]) 115 115 121 + 116 116 The LG308 is already set to connect to [[TTN V3 network >>url:https://eu1.cloud.thethings.network/]]. What we need to now is only configure the TTN V3: 117 117 118 118 **Step 1**: Create a device in TTN V3 with the OTAA keys from LWL02. ... ... @@ -182,7 +182,7 @@ 182 182 183 183 184 184 185 -1. 191 +1. 186 186 11. Downlink Payload 187 187 188 188 |**Downlink Control Type**|**Type Code**|**Downlink payload size(bytes)** ... ... @@ -195,6 +195,7 @@ 195 195 |[[Set Alarm Timeout>>path:#Alarm_Timeout]]|0xA9|4 196 196 197 197 204 + 198 198 Example Downlink payload setting in TTN V3: 199 199 200 200 [[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image015.png]] ... ... @@ -247,7 +247,7 @@ 247 247 248 248 249 249 250 -1. 257 +1. 251 251 11. Integrate with Datacake 252 252 253 253 Datacake provides a human friendly interface to show the sensor data, once we have data in TTN V3, we can use Datacake to connect to TTN V3 and see the data in Datacake. Below are the steps: ... ... @@ -312,7 +312,7 @@ 312 312 313 313 314 314 315 -1. 322 +1. 316 316 11. LEDs 317 317 318 318 |**Action**|**LED behavior** ... ... @@ -322,6 +322,7 @@ 322 322 |Got a downlink message|**BLUE LED** blinks once 323 323 324 324 332 + 325 325 1. Battery & How to replace 326 326 11. Battery Type and replace 327 327
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