Last modified by Mengting Qiu on 2024/05/29 11:20
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From version < 1.8 >
edited by Xiaoling
on 2022/06/08 14:22
To version < 1.5 >
edited by Xiaoling
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Summary

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Content
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14 14  1. Introduction
15 15  11. What is LWL02 LoRaWAN Water Leak Sensor
16 16  
17 +
17 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.
18 18  
19 19  
... ... @@ -42,6 +42,7 @@
42 42  * Remote configure parameters via LoRa Downlink
43 43  * Firmware upgradable via program port
44 44  
46 +
45 45  *
46 46  *1. Applications
47 47  * Smart Buildings & Home Automation
... ... @@ -51,17 +51,20 @@
51 51  * Smart Cities
52 52  * Smart Factory
53 53  
56 +
54 54  1.
55 55  11. Dimension
56 56  
60 +
57 57  [[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image003.png]]
58 58  
59 59  [[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image004.png]]
60 60  
61 61  
62 -1.
66 +1.
63 63  11. Firmware Change log
64 64  
69 +
65 65  LWL02 use the same firmware as LDS01.
66 66  
67 67  [[LWL02 Image files – Download link>>url:http://www.dragino.com/downloads/index.php?dir=LoRa_End_Node/LDS01/Firmware/]]
... ... @@ -71,6 +71,7 @@
71 71  
72 72  1. Power ON LWL02
73 73  
79 +
74 74  When receive the LWL02, please open the enclosure and add 2 x AAA batteries to power it. The [[LED>>path:#LED]] will blink when device is powered.
75 75  
76 76  
... ... @@ -105,7 +105,7 @@
105 105  1.
106 106  11. Example to join LoRaWAN network
107 107  
108 -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. 
114 +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.
109 109  
110 110  [[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image006.png]]
111 111  
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119 119  * A message when switch from water leak to none water leak. ([[Alarm event can be disabled>>path:#Alarm]])
120 120  
121 121  
128 +
129 +
122 122  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:
123 123  
124 124  **Step 1**: Create a device in TTN V3 with the OTAA keys from LWL02.
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159 159  [[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image013.png]]
160 160  
161 161  
162 -1.
170 +1.
163 163  11. Uplink Payload
164 164  
173 +
165 165  Uplink Payload total 9 bytes.
166 166  
167 167  
... ... @@ -176,6 +176,7 @@
176 176  duration (unit: min)
177 177  )))
178 178  
188 +
179 179  Example:
180 180  
181 181  [[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image014.png]]
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191 191  1.
192 192  11. Downlink Payload
193 193  
204 +
194 194  |**Downlink Control Type**|**Type Code**|**Downlink payload size(bytes)**
195 195  |TDC (Transmit Time Interval—Keep Alive Interval)|0x01|4
196 196  |RESET|0x04|2
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202 202  
203 203  
204 204  
216 +
217 +
205 205  Example Downlink payload setting in TTN V3:
206 206  
207 207  [[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image015.png]]
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257 257  1.
258 258  11. Integrate with Datacake
259 259  
273 +
260 260  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:
261 261  
262 262  
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282 282  [[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image019.png]]
283 283  
284 284  
285 -1.
299 +1.
286 286  11. Alarm Base on Timeout
287 287  
302 +
288 288  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.
289 289  
290 290  
... ... @@ -299,6 +299,7 @@
299 299  
300 300  * AT+TTIG=0,0 à Default Value, disable timeout Alarm.
301 301  
317 +
302 302  **Downlink Command** to configure:
303 303  
304 304  Command: 0xA9 aa bb cc
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322 322  1.
323 323  11. LEDs
324 324  
341 +
325 325  |**Action**|**LED behavior**
326 326  |Power On|**GREEN on 1s, RED on 1s, BLUE on 1s**
327 327  |Joined successful|**GRENN LED **on 5s
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330 330  
331 331  
332 332  
350 +
351 +
333 333  1. Battery & How to replace
334 334  11. Battery Type and replace
335 335  
... ... @@ -338,6 +338,8 @@
338 338  1. The LWL02 doesn’t have any screw, use can use nail to open it by the middle.
339 339  1. Make sure the direction is correct when install the AAA batteries.
340 340  
360 +
361 +
341 341  **Important Notice: Make sure use new AAA LR03 battery and the battery doesn’t have broken surface.**
342 342  
343 343  
... ... @@ -348,7 +348,7 @@
348 348  
349 349  
350 350  
351 -1.
372 +1.
352 352  11. 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:
... ... @@ -394,7 +394,7 @@
394 394  
395 395  == 7.1 How to upgrade the image? ==
396 396  
397 -User can upgrade the of LWL02 for bug fix, new features, or change working region. The upgrade instruction is here:  [[Firmware Upgrade Instruction>>Firmware Upgrade Instruction for STM32 base products]]
418 +User can upgrade the firmware of LWL02 for bug fix, new features, or change working region. The upgrade instruction is here: [[http:~~/~~/wiki.dragino.com/index.php?title=Firmware_Upgrade_Instruction>>url:http://wiki.dragino.com/index.php?title=Firmware_Upgrade_Instruction]]
398 398  
399 399  
400 400  
... ... @@ -401,7 +401,7 @@
401 401  
402 402  == 7.2 How to change the LoRa Frequency Bands/Region? ==
403 403  
404 -If user has for example US915 frequency and want to change it to AS923 frequency. User can follow the introduction for [[how to upgrade image>>||anchor="H7.1Howtoupgradetheimage"]]. When download the images, choose the required image file for download.
425 +If user has for example US915 frequency and want to change it to AS923 frequency. User can follow the introduction for [[how to upgrade image>>path:#upgrade_image]]. When download the images, choose the required image file for download.
405 405  
406 406  
407 407  
... ... @@ -410,13 +410,13 @@
410 410  
411 411  Yes, User can use below method to disable this:
412 412  
413 -(% style="color:#4f81bd" %)**via AT Command**:
434 +**via AT Command**:
414 414  
415 415  AT+DISALARM=1, End node will only send packet in TDC time.
416 416  
417 -AT+DISALARM=0, End node will send packet in TDC time or status change for door sensor. 
438 +AT+DISALARM=0, End node will send packet in TDC time or status change for door sensor.
418 418  
419 -(% style="color:#4f81bd" %)**via LoRaWAN downlink Command**:
440 +**via LoRaWAN downlink Command**:
420 420  
421 421  0xA701 : Equal to AT+DISALARM=1
422 422  
... ... @@ -427,20 +427,22 @@
427 427  
428 428  = 8. Order Info =
429 429  
430 -**Part Number: (% style="color:blue" %)LWL02-XXX(%%)**
451 +**Part Number:(%%) (% style="color:blue" %)LWL02-XXX**
431 431  
432 -(% style="color:blue" %)**XXX:**
453 +**(% style="color:blue" %)XXX:**
433 433  
434 -* (% style="color:red" %)**EU433**(%%): frequency bands EU433
435 -* (% style="color:red" %)**EU868**(%%): frequency bands EU868
436 -* (% style="color:red" %)**KR920**(%%): frequency bands KR920
437 -* (% style="color:red" %)**CN470**(%%): frequency bands CN470
438 -* (% style="color:red" %)**AS923**(%%): frequency bands AS923
439 -* (% style="color:red" %)**AU915**(%%): frequency bands AU915
440 -* (% style="color:red" %)**US915**(%%): frequency bands US915
441 -* (% style="color:red" %)**IN865**(%%): frequency bands IN865
442 -* (% style="color:red" %)**CN779**(%%): frequency bands CN779
455 +* **(% style="color:red" %)EU433**(%%): frequency bands EU433
456 +* **(% style="color:red" %)EU868**(%%): frequency bands EU868
457 +* **(% style="color:red" %)KR920**(%%): frequency bands KR920
458 +* **(% style="color:red" %)CN470**(%%): frequency bands CN470
459 +* **(% style="color:red" %)AS923**(%%): frequency bands AS923
460 +* **(% style="color:red" %)AU915**(%%): frequency bands AU915
461 +* **(% style="color:red" %)US915**(%%): frequency bands US915
462 +* **(% style="color:red" %)IN865**(%%): frequency bands IN865
463 +* **(% style="color:red" %)CN779**(%%): frequency bands CN779
443 443  
465 +
466 +
444 444  = 9. Packing Info =
445 445  
446 446  
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448 448  
449 449  * LWL02 x 1
450 450  
474 +
475 +
451 451  = 10.Support =
452 452  
453 453  * 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.
454 454  * 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.com>>url:file:///D:/市场资料/说明书/LoRa/LT系列/support@dragino.com]].
455 455  
481 +
456 456  

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