Version 33.5 by Xiaoling on 2022/06/08 17:19
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1 (% style="text-align:center" %)
2 [[image:1654679359875-169.png]]
3
4
5 **Contents:**
6
7 {{toc/}}
8
9
10
11
12
13 = 1. Introduction =
14
15 == 1.1 What is LDS02 LoRaWAN Door Sensor ==
16
17
18 (((
19 The Dragino LDS02 is a (% style="color:#037691" %)**LoRaWAN Door Sensor**(%%). It detects door open/close status and uplink to IoT server via LoRaWAN network. user can see the door status, open time, open counts in the IoT Server.
20
21 LDS02 is powered by (% style="color:#037691" %)**2 x AAA batteries**(%%) and target for long time use, these two batteries can provide about 16,000 ~~ 70,000 uplink packets. After battery running out, user can easily open the enclosure and replace with 2 common AAA batteries.
22
23 The LDS02 will send periodically data every day as well as for each door open/close action. It also (% style="color:#037691" %)**counts the door open times**(%%) and (% style="color:#037691" %)**calculate last door open duration**(%%). User can also disable the uplink for each open/close event, instead, device can count each open event and uplink periodically.
24
25 LDS02 has the (% style="color:#037691" %)**open alarm feature**(%%), user can set this feature so device will send Alarm if the door has been open for a certain time.
26
27 Each LDS02 is (% style="color:#037691" %)**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.
28 )))
29
30
31
32
33 == 1.2 Features ==
34
35 * LoRaWAN Class A v1.0.3
36 * Frequency Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915/IN865/RU864
37 * SX1262 LoRa Core
38 * Water Leak detect
39 * 2 x AAA LR03 Batteries
40 * AT Commands to change parameters
41 * Uplink on periodically and open/close action
42 * Remote configure parameters via LoRa Downlink
43 * Firmware upgradable via program port
44
45
46 == 1.3 Applications ==
47
48 * Smart Buildings & Home Automation
49 * Logistics and Supply Chain Management
50 * Smart Metering
51 * Smart Agriculture
52 * Smart Cities
53 * Smart Factory
54
55
56 == 1.4 Dimension ==
57
58 [[image:image-20220608143952-2.png]]
59
60 [[image:1654670405145-346.png]]
61
62
63
64 == 1.5 Firmware Change log ==
65
66 (((
67 LWL02 use the same firmware as LDS01.
68 )))
69
70 (((
71 [[LWL02 Image files – Download link>>url:http://www.dragino.com/downloads/index.php?dir=LoRa_End_Node/LDS01/Firmware/]]
72 )))
73
74
75 = 2. Power ON LWL02 =
76
77 When receive the LWL02, please open the enclosure and add 2 x AAA batteries to power it. The [[LED>>||anchor="H4.7LEDs"]] will blink when device is powered.
78
79
80 = 3. How to install LWL02 =
81
82 (((
83 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.
84 )))
85
86 [[image:image-20220608144447-4.png]]
87
88
89
90 = 4. Operation Mode =
91
92 == 4.1 How it works? ==
93
94 (((
95 The LWL02 is configured as LoRaWAN OTAA Class A mode by default. It has OTAA keys to join network. To connect a local LoRaWAN network, user just need to input the OTAA keys in the network server and [[power on>>||anchor="H2.PowerONLWL02"]] the LWL02. It will auto join the network via OTAA.
96 )))
97
98 (((
99 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>>||anchor="H6.UseATCommand"]] to set the keys in the devices.
100 )))
101
102
103 == 4.2 Example to join LoRaWAN network ==
104
105 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. 
106
107 [[image:1654671007127-335.png]]
108
109
110 (((
111 The LWL02 has water leak detect probe as above. When there is water between these two detect probe, they will be short and generate the water leak event. and send the status to LoRaWAN server. The LWL02 will uplink two type of messages to the server.
112 )))
113
114 * (((
115 A keep-alive message which send once per day.
116 )))
117 * (((
118 An emergency event message when detect a water leak. ([[Alarm event can be disabled>>||anchor="H7.3CanIdisableuplinkforeacheventtosavebatterylife3F"]])
119 )))
120 * (((
121 A periodically update at every 10 minutes when in water leak.
122 )))
123 * (((
124 A message when switch from water leak to none water leak. ([[Alarm event can be disabled>>||anchor="H7.3CanIdisableuplinkforeacheventtosavebatterylife3F"]])
125 )))
126
127 (((
128
129
130 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:
131 )))
132
133 (((
134 (% style="color:blue" %)**Step 1**(%%): Create a device in TTN V3 with the OTAA keys from LWL02.
135 )))
136
137 (((
138 Each LWL02 is shipped with a sticker with unique device EUI:
139 )))
140
141 [[image:1654671040430-368.png]]
142
143
144 User can enter this key in their LoRaWAN Server portal. Below is TTN V3 screen shot:
145
146 **Add APP EUI in the application**
147
148 [[image:1654671794691-956.png]]
149
150
151 [[image:1654671809850-574.png]]
152
153 [[image:1654671820156-640.png]]
154
155
156 [[image:1654671832011-696.png]]
157
158
159 **Add APP KEY and DEV EUI**
160
161
162 (% style="color:blue" %)**Step 2**(%%): **[[Power on>>||anchor="H2.PowerONLWL02"]]** LWL02 and it will auto join to the TTN V3 network. After join success, it will start to upload message to TTN V3 and user can see in the panel.
163
164 [[image:1654671889112-678.png]]
165
166
167 == 4.3 Uplink Payload ==
168
169
170 Uplink Payload total 9 bytes.
171
172 [[image:image-20220608150921-5.png]]
173
174
175 **Example:**
176
177 [[image:1654672186477-234.png]]
178
179
180 (((
181 Example Payload Decoder in TTN V3: [[http:~~/~~/www.dragino.com/downloads/index.php?dir=LoRa_End_Node/LDS01/Payload/>>url:http://www.dragino.com/downloads/index.php?dir=LoRa_End_Node/LDS01/Payload/]]
182 )))
183
184
185 == 4.4 Downlink Payload ==
186
187
188 (% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:410px" %)
189 |=(% style="width: 180px;" %)**Downlink Control Type**|=(% style="width: 80px;" %)**Type Code**|=(% style="width: 150px;" %)**Downlink payload size(bytes)**
190 |(% style="width:180px" %)TDC (Transmit Time Interval—Keep Alive Interval)|(% style="width:80px" %)0x01|(% style="width:150px" %)4
191 |(% style="width:180px" %)RESET|(% style="width:80px" %)0x04|(% style="width:224px" %)2
192 |(% style="width:180px" %)[[Set confirmed mode>>||anchor="HTypeCode0x05"]]|(% style="width:80px" %)0x05|(% style="width:150px" %)2
193 |(% style="width:180px" %)[[Clear Counting>>||anchor="HTypeCode0xA6"]]|(% style="width:80px" %)0xA6|(% style="width:150px" %)2
194 |(% style="width:180px" %)[[Enable/Disable Alarm>>||anchor="HTypeCode0xA7"]]|(% style="width:80px" %)0xA7|(% style="width:150px" %)2
195 |(% style="width:180px" %)[[Control ADR/DR>>||anchor="HTypeCode0xA8"]]|(% style="width:80px" %)0xA8|(% style="width:150px" %)3
196 |(% style="width:180px" %)[[Set Alarm Timeout>>||anchor="HTypeCode0xA9"]]|(% style="width:80px" %)0xA9|(% style="width:150px" %)4
197
198 Example Downlink payload setting in TTN V3:
199
200 [[image:1654673412319-976.png]]
201
202
203 === (% style="color:#037691" %)**Type Code 0x01**(%%) ===
204
205 If the payload=0100003C, means to control the LWL02’s Keep Alive interval to 0x00003C=60(S)
206
207
208 === (% style="color:#037691" %)**Type Code 0x04**(%%) ===
209
210 If payload = 0x04FF, it will reset the LWL02.
211
212
213 === (% style="color:#037691" %)**Type Code 0x05**(%%) ===
214
215 0x05 00: Set uplink to LoRaWAN unconfirmed mode
216
217 0x05 01: Set uplink to LoRaWAN confirmed mode
218
219
220 === (% style="color:#037691" %)**Type Code 0xA6**(%%) ===
221
222 Example: 0xA601: Clear Counting
223 For LWL02: reset both count number and time.
224
225
226 === (% style="color:#037691" %)**Type Code 0xA7**(%%) ===
227
228 0xA7 01 : Equal to AT+DISALARM=1
229
230 0xA7 00 : Equal to AT+DISALARM=0
231
232
233 === (% style="color:#037691" %)**Type Code 0xA8**(%%) ===
234
235 Format: 0xA8 aa bb
236
237 aa: 1: Enable ADR; 0: Disable ADR (Same as AT+CADR command)
238
239 bb: set DR (Same as AT+CDATARATE ,only valid after ADR=0)
240
241 Example: 0x A8 00 02 : Set ADR=0 and DR=1
242
243
244 === (% style="color:#037691" %)**Type Code 0xA9**(%%) ===
245
246 See [[Alarm Base Timeout>>||anchor="H4.6AlarmBaseonTimeout"]] for detail.
247
248
249 == 4.5 Integrate with Datacake ==
250
251 (((
252 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:
253 )))
254
255
256 (% style="color:blue" %)**Step 1**(%%): Be sure that your device is programmed and properly connected to the network at this time.
257
258 (% style="color:blue" %)**Step 2**(%%): To configure the Application to forward data to Datacake you will need to add integration. To add the Datacake integration, perform the following steps:
259
260
261 [[image:1654674520913-519.png]]
262
263
264 [[image:1654674530910-914.png]]
265
266
267 [[image:1654674543078-401.png]]
268
269
270 (% style="color:blue" %)**Step 3**(%%): Create an account or log in Datacake.
271
272 (% style="color:blue" %)**Step 4**(%%): Search LWL02 and add DevEUI.
273
274 [[image:1654674556510-911.png]]
275
276
277 == 4.6 Alarm Base on Timeout ==
278
279 (((
280 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.
281 )))
282
283 (((
284 User configure this feature by using:
285 )))
286
287 (((
288
289 )))
290
291 (((
292 (% style="color:blue" %)**AT Command**(%%) to configure:
293 )))
294
295 * (((
296 **AT+TTRIG=1,30 ** **~-~->** When status change from close to open, and device keep in open
297 )))
298
299 (((
300 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.
301 )))
302
303 * (((
304 **AT+TTIG=0,0**  **~-~->**  Default Value, disable timeout Alarm.
305 )))
306
307 (((
308 (% style="color:blue" %)**Downlink Command**(%%) to configure:
309 )))
310
311 (((
312 **Command: 0xA9 aa bb cc**
313 )))
314
315 (((
316 A9: Command Type Code
317 )))
318
319 (((
320 aa: status to be monitor
321 )))
322
323 (((
324 bb cc: timeout.
325 )))
326
327 (((
328
329 )))
330
331 (((
332 If user send 0xA9 01 00 1E: equal to AT+TTRIG=1,30
333 )))
334
335 (((
336 Or
337 )))
338
339 (((
340 0xA9 00 00 00: Equal to AT+TTRIG=0,0. Disable timeout Alarm.
341 )))
342
343
344
345 == 4.7 LEDs ==
346
347
348 (% border="1" cellspacing="10" style="background-color:#ffffcc; width:463px" %)
349 |=(% style="width: 184px;" %)**Action**|=(% style="width: 275px;" %)**LED behavior**
350 |(% style="width:184px" %)Power On|(% style="width:275px" %)(% style="color:green" %)**GREEN on 1s, **(% style="color:red" %)**RED on 1s,**(%%)** (% style="color:blue" %)BLUE on 1s(%%)**
351 |(% style="width:184px" %)Joined successful|(% style="width:275px" %)(% style="color:green" %)**GRENN LED **(%%)on 5s
352 |(% style="width:184px" %)Send an uplink message|(% style="width:275px" %)(% style="color:green" %)**GREEN LED**(%%) blinks once
353 |(% style="width:184px" %)Got a downlink message|(% style="width:275px" %)(% style="color:blue" %)**BLUE LED**(%%) blinks once
354
355 = 5. Battery & How to replace =
356
357 == 5.1 Battery Type and replace ==
358
359 (((
360 LWL02 is equipped with 2 x AAA LR03 batteries. If the batteries running low(see 2.1v in the platform). User can buy generic AAA battery and replace it. Note:
361 )))
362
363 1. (((
364 The LWL02 doesn’t have any screw, use can use nail to open it by the middle.
365 )))
366 1. (((
367 Make sure the direction is correct when install the AAA batteries.
368 )))
369
370 (((
371 (% style="color:red" %)**Important Notice: Make sure use new AAA LR03 battery and the battery doesn’t have broken surface.**
372 )))
373
374 (((
375
376 )))
377
378 (((
379 Example of AAA LR03 batter:
380 )))
381
382 [[image:1654675278044-307.png]]
383
384
385 == 5.2 Power Consumption Analyze ==
386
387 (((
388 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:
389 )))
390
391 (((
392 [[https:~~/~~/www.dragino.com/downloads/downloads/LoRa_End_Node/Battery_Analyze/DRAGINO_Battery_Life_Guide.pdf>>url:https://www.dragino.com/downloads/downloads/LoRa_End_Node/Battery_Analyze/DRAGINO_Battery_Life_Guide.pdf]]
393 )))
394
395
396 = 6. Use AT Command =
397
398 == 6.1 Access AT Command ==
399
400 LWL02 supports AT Command set. User can use a USB to TTL adapter to configure LWL02 via use AT command, as below.
401
402 [[image:image-20220608160336-1.png]]
403
404
405 (% style="background-color:yellow" %)**USB to TTL <- -> LWL02**
406
407 (% style="background-color:yellow" %)**RX <- -> TX**
408
409 (% style="background-color:yellow" %)**TX <- -> RX**
410
411 (% style="background-color:yellow" %)**GND <- -> GND**
412
413
414 (((
415 In PC, User needs to set (% style="color:#037691" %)**serial tool**(%%)(such as [[putty>>url:https://www.chiark.greenend.org.uk/~~sgtatham/putty/latest.html]], SecureCRT) baud rate to (% style="color:green" %)**115200**(%%) to access to access serial console of LWL02. Below is the output for reference:
416 )))
417
418 (((
419 The AT Access password is (% style="color:red" %)**123456**.
420 )))
421
422 [[image:1654675618022-630.png]]
423
424 (((
425 Each AT Command need to (% style="color:red" %)**add an ENTER**(%%) at the end before send.
426 )))
427
428 (((
429 When entering the first command, the (% style="color:red" %)**RED LED**(%%) will on and user can now input AT Commands. After input all needed AT Commands, please input AT+CLPM=1 to set the device to work in Low Power mode and (% style="color:red" %)**RED LED**(%%) will be off.
430 )))
431
432 (((
433 More detail AT Command manual can be found at [[AT Command Manual>>url:http://www.dragino.com/downloads/index.php?dir=LoRa_End_Node/LDS01/]]
434 )))
435
436
437 = 7. FAQ =
438
439 == 7.1 How to upgrade the image? ==
440
441 User can upgrade the of LWL02 for bug fix, new features, or change working region. The upgrade instruction is here: [[Firmware Upgrade Instruction>>doc:Main.Firmware Upgrade Instruction for STM32 base products.WebHome]]
442
443
444 == 7.2 How to change the LoRa Frequency Bands/Region? ==
445
446 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="H7.1Howtoupgradetheimage3F"]]. When download the images, choose the required image file for download.
447
448
449 == 7.3 Can I disable uplink for each event to save battery life? ==
450
451 Yes, User can use below method to disable this:
452
453 (% style="color:#4f81bd" %)**via AT Command**:
454
455 AT+DISALARM=1, End node will only send packet in TDC time.
456
457 AT+DISALARM=0, End node will send packet in TDC time or status change for door sensor. 
458
459 (% style="color:#4f81bd" %)**via LoRaWAN downlink Command**:
460
461 0xA701 : Equal to AT+DISALARM=1
462
463 0xA700 : Equal to AT+DISALARM=0
464
465
466 = 8. Order Info =
467
468 **Part Number: (% style="color:blue" %)LWL02-XXX(%%)**
469
470 (% style="color:blue" %)**XXX:**
471
472 * (% style="color:red" %)**EU433**(%%): frequency  bands EU433
473 * (% style="color:red" %)**EU868**(%%): frequency  bands EU868
474 * (% style="color:red" %)**KR920**(%%): frequency  bands KR920
475 * (% style="color:red" %)**CN470**(%%): frequency bands CN470
476 * (% style="color:red" %)**AS923**(%%): frequency  bands AS923
477 * (% style="color:red" %)**AU915**(%%): frequency bands AU915
478 * (% style="color:red" %)**US915**(%%): frequency bands  US915
479 * (% style="color:red" %)**IN865**(%%):  frequency bands  IN865
480 * (% style="color:red" %)**CN779**(%%): frequency bands CN779
481
482 = 9. Packing Info =
483
484 **Package Includes**:
485
486 * LWL02 x 1
487
488 = 10. Support =
489
490 * 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.
491 * 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]].
492
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