Version 38.3 by Xiaoling on 2022/06/08 17:32
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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 [[image:image-20220608171947-2.png]]
31
32
33
34 == 1.2 Features ==
35
36 * LoRaWAN Class A v1.0.3
37 * Frequency Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915/IN865/RU864
38 * SX1262 LoRa Core
39 * Water Leak detect
40 * 2 x AAA LR03 Batteries
41 * AT Commands to change parameters
42 * Uplink on periodically and open/close action
43 * Remote configure parameters via LoRa Downlink
44 * Firmware upgradable via program port
45
46
47 == 1.3 Applications ==
48
49 * Smart Buildings & Home Automation
50 * Logistics and Supply Chain Management
51 * Smart Metering
52 * Smart Agriculture
53 * Smart Cities
54 * Smart Factory
55
56
57 == 1.4 Dimension ==
58
59 Unit: mm
60
61 [[image:1654680563545-120.png]]
62
63
64 [[image:1654680510816-654.png]]
65
66
67 == 1.5 Firmware Change log ==
68
69 (((
70 (((
71 LDS02 use the same firmware as LDS01.
72 )))
73
74 (((
75 [[LDS02 Image files – Download link>>url:http://www.dragino.com/downloads/index.php?dir=LoRa_End_Node/LDS01/Firmware/]]
76 )))
77 )))
78
79
80 = 2. Power ON LDS02 =
81
82 When receive the LDS02, please open the enclosure and add 2 x AAA batteries to power it. The [[LED>>||anchor="H4.7LEDs"]] will blink when device is powered.
83
84
85 = 3. How to install LDS02 =
86
87 (((
88 (((
89 When install the LDS02 on wall. Please make sure install as below so the marks will close to each other when close the door.
90 )))
91
92 (((
93 Open/Close threshold range: ~~ 25mm
94 )))
95 )))
96
97 [[image:1654680716522-793.png]]
98
99
100
101 = 4. Operation Mode =
102
103 == 4.1 How it works? ==
104
105 (((
106 The LDS02 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 LDS02. It will auto join the network via OTAA.
107 )))
108
109 (((
110 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.
111 )))
112
113
114 == 4.2 Example to join LoRaWAN network ==
115
116 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. 
117
118 [[image:1654671007127-335.png]]
119
120
121 (((
122 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.
123 )))
124
125 * (((
126 A keep-alive message which send once per day.
127 )))
128 * (((
129 An emergency event message when detect a water leak. ([[Alarm event can be disabled>>||anchor="H7.3CanIdisableuplinkforeacheventtosavebatterylife3F"]])
130 )))
131 * (((
132 A periodically update at every 10 minutes when in water leak.
133 )))
134 * (((
135 A message when switch from water leak to none water leak. ([[Alarm event can be disabled>>||anchor="H7.3CanIdisableuplinkforeacheventtosavebatterylife3F"]])
136 )))
137
138 (((
139
140
141 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:
142 )))
143
144 (((
145 (% style="color:blue" %)**Step 1**(%%): Create a device in TTN V3 with the OTAA keys from LWL02.
146 )))
147
148 (((
149 Each LWL02 is shipped with a sticker with unique device EUI:
150 )))
151
152 [[image:1654671040430-368.png]]
153
154
155 User can enter this key in their LoRaWAN Server portal. Below is TTN V3 screen shot:
156
157 **Add APP EUI in the application**
158
159 [[image:1654671794691-956.png]]
160
161
162 [[image:1654671809850-574.png]]
163
164 [[image:1654671820156-640.png]]
165
166
167 [[image:1654671832011-696.png]]
168
169
170 **Add APP KEY and DEV EUI**
171
172
173 (% 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.
174
175 [[image:1654671889112-678.png]]
176
177
178 == 4.3 Uplink Payload ==
179
180
181 Uplink Payload total 9 bytes.
182
183 [[image:image-20220608150921-5.png]]
184
185
186 **Example:**
187
188 [[image:1654672186477-234.png]]
189
190
191 (((
192 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/]]
193 )))
194
195
196 == 4.4 Downlink Payload ==
197
198
199 (% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:410px" %)
200 |=(% style="width: 180px;" %)**Downlink Control Type**|=(% style="width: 80px;" %)**Type Code**|=(% style="width: 150px;" %)**Downlink payload size(bytes)**
201 |(% style="width:180px" %)TDC (Transmit Time Interval—Keep Alive Interval)|(% style="width:80px" %)0x01|(% style="width:150px" %)4
202 |(% style="width:180px" %)RESET|(% style="width:80px" %)0x04|(% style="width:224px" %)2
203 |(% style="width:180px" %)[[Set confirmed mode>>||anchor="HTypeCode0x05"]]|(% style="width:80px" %)0x05|(% style="width:150px" %)2
204 |(% style="width:180px" %)[[Clear Counting>>||anchor="HTypeCode0xA6"]]|(% style="width:80px" %)0xA6|(% style="width:150px" %)2
205 |(% style="width:180px" %)[[Enable/Disable Alarm>>||anchor="HTypeCode0xA7"]]|(% style="width:80px" %)0xA7|(% style="width:150px" %)2
206 |(% style="width:180px" %)[[Control ADR/DR>>||anchor="HTypeCode0xA8"]]|(% style="width:80px" %)0xA8|(% style="width:150px" %)3
207 |(% style="width:180px" %)[[Set Alarm Timeout>>||anchor="HTypeCode0xA9"]]|(% style="width:80px" %)0xA9|(% style="width:150px" %)4
208
209 Example Downlink payload setting in TTN V3:
210
211 [[image:1654673412319-976.png]]
212
213
214 === (% style="color:#037691" %)**Type Code 0x01**(%%) ===
215
216 If the payload=0100003C, means to control the LWL02’s Keep Alive interval to 0x00003C=60(S)
217
218
219 === (% style="color:#037691" %)**Type Code 0x04**(%%) ===
220
221 If payload = 0x04FF, it will reset the LWL02.
222
223
224 === (% style="color:#037691" %)**Type Code 0x05**(%%) ===
225
226 0x05 00: Set uplink to LoRaWAN unconfirmed mode
227
228 0x05 01: Set uplink to LoRaWAN confirmed mode
229
230
231 === (% style="color:#037691" %)**Type Code 0xA6**(%%) ===
232
233 Example: 0xA601: Clear Counting
234 For LWL02: reset both count number and time.
235
236
237 === (% style="color:#037691" %)**Type Code 0xA7**(%%) ===
238
239 0xA7 01 : Equal to AT+DISALARM=1
240
241 0xA7 00 : Equal to AT+DISALARM=0
242
243
244 === (% style="color:#037691" %)**Type Code 0xA8**(%%) ===
245
246 Format: 0xA8 aa bb
247
248 aa: 1: Enable ADR; 0: Disable ADR (Same as AT+CADR command)
249
250 bb: set DR (Same as AT+CDATARATE ,only valid after ADR=0)
251
252 Example: 0x A8 00 02 : Set ADR=0 and DR=1
253
254
255 === (% style="color:#037691" %)**Type Code 0xA9**(%%) ===
256
257 See [[Alarm Base Timeout>>||anchor="H4.6AlarmBaseonTimeout"]] for detail.
258
259
260 == 4.5 Integrate with Datacake ==
261
262 (((
263 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:
264 )))
265
266
267 (% style="color:blue" %)**Step 1**(%%): Be sure that your device is programmed and properly connected to the network at this time.
268
269 (% 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:
270
271
272 [[image:1654674520913-519.png]]
273
274
275 [[image:1654674530910-914.png]]
276
277
278 [[image:1654674543078-401.png]]
279
280
281 (% style="color:blue" %)**Step 3**(%%): Create an account or log in Datacake.
282
283 (% style="color:blue" %)**Step 4**(%%): Search LWL02 and add DevEUI.
284
285 [[image:1654674556510-911.png]]
286
287
288 == 4.6 Alarm Base on Timeout ==
289
290 (((
291 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.
292 )))
293
294 (((
295 User configure this feature by using:
296 )))
297
298 (((
299
300 )))
301
302 (((
303 (% style="color:blue" %)**AT Command**(%%) to configure:
304 )))
305
306 * (((
307 **AT+TTRIG=1,30 ** **~-~->** When status change from close to open, and device keep in open
308 )))
309
310 (((
311 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.
312 )))
313
314 * (((
315 **AT+TTIG=0,0**  **~-~->**  Default Value, disable timeout Alarm.
316 )))
317
318 (((
319 (% style="color:blue" %)**Downlink Command**(%%) to configure:
320 )))
321
322 (((
323 **Command: 0xA9 aa bb cc**
324 )))
325
326 (((
327 A9: Command Type Code
328 )))
329
330 (((
331 aa: status to be monitor
332 )))
333
334 (((
335 bb cc: timeout.
336 )))
337
338 (((
339
340 )))
341
342 (((
343 If user send 0xA9 01 00 1E: equal to AT+TTRIG=1,30
344 )))
345
346 (((
347 Or
348 )))
349
350 (((
351 0xA9 00 00 00: Equal to AT+TTRIG=0,0. Disable timeout Alarm.
352 )))
353
354
355
356 == 4.7 LEDs ==
357
358
359 (% border="1" cellspacing="10" style="background-color:#ffffcc; width:463px" %)
360 |=(% style="width: 184px;" %)**Action**|=(% style="width: 275px;" %)**LED behavior**
361 |(% 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(%%)**
362 |(% style="width:184px" %)Joined successful|(% style="width:275px" %)(% style="color:green" %)**GRENN LED **(%%)on 5s
363 |(% style="width:184px" %)Send an uplink message|(% style="width:275px" %)(% style="color:green" %)**GREEN LED**(%%) blinks once
364 |(% style="width:184px" %)Got a downlink message|(% style="width:275px" %)(% style="color:blue" %)**BLUE LED**(%%) blinks once
365
366 = 5. Battery & How to replace =
367
368 == 5.1 Battery Type and replace ==
369
370 (((
371 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:
372 )))
373
374 1. (((
375 The LWL02 doesn’t have any screw, use can use nail to open it by the middle.
376 )))
377 1. (((
378 Make sure the direction is correct when install the AAA batteries.
379 )))
380
381 (((
382 (% style="color:red" %)**Important Notice: Make sure use new AAA LR03 battery and the battery doesn’t have broken surface.**
383 )))
384
385 (((
386
387 )))
388
389 (((
390 Example of AAA LR03 batter:
391 )))
392
393 [[image:1654675278044-307.png]]
394
395
396 == 5.2 Power Consumption Analyze ==
397
398 (((
399 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:
400 )))
401
402 (((
403 [[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]]
404 )))
405
406
407 = 6. Use AT Command =
408
409 == 6.1 Access AT Command ==
410
411 LWL02 supports AT Command set. User can use a USB to TTL adapter to configure LWL02 via use AT command, as below.
412
413 [[image:image-20220608160336-1.png]]
414
415
416 (% style="background-color:yellow" %)**USB to TTL <- -> LWL02**
417
418 (% style="background-color:yellow" %)**RX <- -> TX**
419
420 (% style="background-color:yellow" %)**TX <- -> RX**
421
422 (% style="background-color:yellow" %)**GND <- -> GND**
423
424
425 (((
426 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:
427 )))
428
429 (((
430 The AT Access password is (% style="color:red" %)**123456**.
431 )))
432
433 [[image:1654675618022-630.png]]
434
435 (((
436 Each AT Command need to (% style="color:red" %)**add an ENTER**(%%) at the end before send.
437 )))
438
439 (((
440 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.
441 )))
442
443 (((
444 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/]]
445 )))
446
447
448 = 7. FAQ =
449
450 == 7.1 How to upgrade the image? ==
451
452 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]]
453
454
455 == 7.2 How to change the LoRa Frequency Bands/Region? ==
456
457 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.
458
459
460 == 7.3 Can I disable uplink for each event to save battery life? ==
461
462 Yes, User can use below method to disable this:
463
464 (% style="color:#4f81bd" %)**via AT Command**:
465
466 AT+DISALARM=1, End node will only send packet in TDC time.
467
468 AT+DISALARM=0, End node will send packet in TDC time or status change for door sensor. 
469
470 (% style="color:#4f81bd" %)**via LoRaWAN downlink Command**:
471
472 0xA701 : Equal to AT+DISALARM=1
473
474 0xA700 : Equal to AT+DISALARM=0
475
476
477 = 8. Order Info =
478
479 **Part Number: (% style="color:blue" %)LWL02-XXX(%%)**
480
481 (% style="color:blue" %)**XXX:**
482
483 * (% style="color:red" %)**EU433**(%%): frequency  bands EU433
484 * (% style="color:red" %)**EU868**(%%): frequency  bands EU868
485 * (% style="color:red" %)**KR920**(%%): frequency  bands KR920
486 * (% style="color:red" %)**CN470**(%%): frequency bands CN470
487 * (% style="color:red" %)**AS923**(%%): frequency  bands AS923
488 * (% style="color:red" %)**AU915**(%%): frequency bands AU915
489 * (% style="color:red" %)**US915**(%%): frequency bands  US915
490 * (% style="color:red" %)**IN865**(%%):  frequency bands  IN865
491 * (% style="color:red" %)**CN779**(%%): frequency bands CN779
492
493 = 9. Packing Info =
494
495 **Package Includes**:
496
497 * LWL02 x 1
498
499 = 10. Support =
500
501 * 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.
502 * 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]].
503
504

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