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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... ... @@ -273,36 +273,69 @@ 273 273 274 274 == 4.6 Alarm Base on Timeout == 275 275 276 +((( 276 276 LWL02 can monitor the timeout for a status change, this feature can be used to monitor some event such as open fridge too long etc. 278 +))) 277 277 278 - 280 +((( 279 279 User configure this feature by using: 282 +))) 280 280 284 +((( 285 + 286 +))) 281 281 288 +((( 282 282 (% style="color:blue" %)**AT Command**(%%) to configure: 290 +))) 283 283 284 -* **AT+TTRIG=1,30 ** **~-~->** When status change from close to open, and device keep in open 292 +* ((( 293 +**AT+TTRIG=1,30 ** **~-~->** When status change from close to open, and device keep in open 294 +))) 285 285 296 +((( 286 286 status for more than 30 seconds. LWL02 will send an uplink packet, the Alarm bit (the lowest bit of 10^^th^^ byte of payload) on this uplink packet is set to 1. 298 +))) 287 287 288 -* **AT+TTIG=0,0** **~-~->** Default Value, disable timeout Alarm. 300 +* ((( 301 +**AT+TTIG=0,0** **~-~->** Default Value, disable timeout Alarm. 302 +))) 289 289 304 +((( 290 290 (% style="color:blue" %)**Downlink Command**(%%) to configure: 306 +))) 291 291 308 +((( 292 292 **Command: 0xA9 aa bb cc** 310 +))) 293 293 312 +((( 294 294 A9: Command Type Code 314 +))) 295 295 316 +((( 296 296 aa: status to be monitor 318 +))) 297 297 320 +((( 298 298 bb cc: timeout. 322 +))) 299 299 324 +((( 325 + 326 +))) 300 300 328 +((( 301 301 If user send 0xA9 01 00 1E: equal to AT+TTRIG=1,30 330 +))) 302 302 332 +((( 303 303 Or 334 +))) 304 304 336 +((( 305 305 0xA9 00 00 00: Equal to AT+TTRIG=0,0. Disable timeout Alarm. 338 +))) 306 306 307 307 308 308 ... ... @@ -316,6 +316,7 @@ 316 316 |(% style="width:184px" %)Got a downlink message|(% style="width:275px" %)(% style="color:blue" %)**BLUE LED**(%%) blinks once 317 317 318 318 352 + 319 319 = 5. Battery & How to replace = 320 320 321 321 == 5.1 Battery Type and replace == ... ... @@ -347,8 +347,6 @@ 347 347 348 348 349 349 350 - 351 - 352 352 == 5.2 Power Consumption Analyze == 353 353 354 354 Dragino battery powered products are all run in Low Power mode. User can check the guideline from this link to calculate the estimate battery life: ... ... @@ -363,17 +363,20 @@ 363 363 364 364 LWL02 supports AT Command set. User can use a USB to TTL adapter to configure LWL02 via use AT command, as below. 365 365 366 -[[image: file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image021.png]]398 +[[image:image-20220608160336-1.png]] 367 367 368 -USB to TTL <- -> LWL02 400 +* 401 +** (% style="background-color:yellow" %)USB to TTL <- -> LWL02 369 369 370 -RX <- -> TX 403 +* 404 +** (% style="background-color:yellow" %)RX <- -> TX 371 371 372 -TX <- -> RX 406 +* 407 +** (% style="background-color:yellow" %)TX <- -> RX 373 373 374 -GND <- -> GND 409 +* 410 +** (% style="background-color:yellow" %)GND <- -> GND 375 375 376 - 377 377 In PC, User needs to set **serial tool**(such as [[putty>>url:https://www.chiark.greenend.org.uk/~~sgtatham/putty/latest.html]], SecureCRT) baud rate to **115200** to access to access serial console of LWL02. Below is the output for reference: 378 378 379 379 The AT Access password is **123456**.