Version 51.2 by Xiaoling on 2022/11/21 11:55
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2 [[image:1654679359875-169.png]]
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13 **Table of Contents:**
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15 {{toc/}}
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23
24 = 1. Introduction =
25
26 == 1.1 What is LDS02 LoRaWAN Door Sensor ==
27
28
29 (((
30 (((
31 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.
32 )))
33
34 (((
35 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.
36 )))
37
38 (((
39 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.
40 )))
41
42 (((
43 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.
44 )))
45
46 (((
47 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.
48
49
50 )))
51 )))
52
53 [[image:image-20220608171947-2.png]]
54
55
56 == 1.2 Features ==
57
58
59 * LoRaWAN Class A v1.0.3
60 * Frequency Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915/IN865/RU864
61 * SX1262 LoRa Core
62 * Water Leak detect
63 * 2 x AAA LR03 Batteries
64 * AT Commands to change parameters
65 * Uplink on periodically and open/close action
66 * Remote configure parameters via LoRa Downlink
67 * Firmware upgradable via program port
68
69
70
71 == 1.3 Applications ==
72
73
74 * Smart Buildings & Home Automation
75 * Logistics and Supply Chain Management
76 * Smart Metering
77 * Smart Agriculture
78 * Smart Cities
79 * Smart Factory
80
81
82
83 == 1.4 Dimension ==
84
85
86 Unit: mm
87
88 [[image:1654680563545-120.png]]
89
90
91 [[image:1654680510816-654.png]]
92
93
94
95
96 == 1.5 Firmware Change log ==
97
98
99 (((
100 (((
101 LDS02 use the same firmware as LDS01：[[LDS02 Image files – Download link>>https://www.dropbox.com/sh/9j35mnsxnz0y3ye/AACj5gHGOURGEHCpj-E861Mua?dl=0]]
102 )))
103 )))
104
105
106 = 2. Power ON LDS02 =
107
108
109 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.
110
111
112 = 3. How to install LDS02 =
113
114
115 (((
116 (((
117 When install the LDS02 on wall. Please make sure install as below so the marks will close to each other when close the door.
118 )))
119
120 (((
121 Open/Close threshold range: ~~ 10mm
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123
124 )))
125 )))
126
127 [[image:1654680716522-793.png]]
128
129
130
131 = 4. Operation Mode =
132
133 == 4.1 How it works? ==
134
135
136 (((
137 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.PowerONLDS02"]] the LDS02. It will auto join the network via OTAA.
138 )))
139
140 (((
141 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.
142 )))
143
144
145 == 4.2 Example to join LoRaWAN network ==
146
147
148 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. 
149
150 [[image:1654680810108-149.png]]
151
152
153 (((
154 The LDS02 in installed on the door edge to detect the open / close event. And send the status to LoRaWAN server. The LDS02 will uplink two type of messages to the server.
155 )))
156
157 * (((
158 A keep-alive message which send once per day.
159 )))
160 * (((
161 A door event message when there is a door open/close. ([[Alarm event can be disabled>>||anchor="H7.3CanIdisableuplinkforeacheventtosavebatterylife3F"]])
162 )))
163
164 (((
165
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167 (((
168 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:
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171 )))
172 )))
173
174 (((
175 (% style="color:blue" %)**Step 1**(%%): Create a device in TTN V3 with the OTAA keys from LDS02.
176 )))
177
178 (((
179 Each LDS02 is shipped with a sticker with unique device EUI:
180 )))
181
182 [[image:1654671040430-368.png]]
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184
185 User can enter this key in their LoRaWAN Server portal. Below is TTN V3 screen shot:
186
187
188 **Add APP EUI in the application**
189
190 [[image:1654671794691-956.png]]
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192
193 [[image:1654671809850-574.png]]
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195 [[image:1654671820156-640.png]]
196
197
198 [[image:1654681258096-500.png]]
199
200
201
202 **Add APP KEY and DEV EUI**
203
204 [[image:1654671889112-678.png]]
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208 (((
209 (% style="color:blue" %)**Step 2**(%%):  **[[Power on>>||anchor="H2.PowerONLDS02"]]** LDS02 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.
210 )))
211
212
213 [[image:1654681390551-993.png]]
214
215
216 == 4.3 Uplink Payload ==
217
218
219 Uplink Payload total 10 bytes.
220
221 (% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:480px" %)
222 |=(% style="width: 80px;" %)**Size(bytes)**|=(% style="width: 80px;" %)**2**|=(% style="width: 80px;" %)**1**|=(% style="width: 80px;" %)**3**|=(% style="width: 80px;" %)**3**|=(% style="width: 80px;" %)**1**
223 |**value**|Status&BAT|(((
224 MOD
225 Always:0x01
226 )))|Total open door events|(((
227 Last door open
228 duration (unit: min)
229 )))|[[Alarm>>||anchor="H4.6AlarmBaseonTimeout"]]
230
231 **Example:**
232
233 [[image:1654681706301-731.png]]
234
235 [[image:1654681714641-440.png]]
236
237
238 (((
239 Example Payload Decoder in TTN V3: [[https:~~/~~/github.com/dragino/dragino-end-node-decoder>>https://github.com/dragino/dragino-end-node-decoder]]
240
241
242 )))
243
244 == 4.4 Downlink Payload ==
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246
247 (% border="1" cellspacing="5" style="background-color:#ffffcc; color:green; width:505px" %)
248 |=(% style="width: 180px;" %)**Downlink Control Type**|=(% style="width: 94px;" %)**Type Code**|=(% style="width: 226px;" %)**Downlink payload size(bytes)**
249 |(% style="width:180px" %)TDC (Transmit Time Interval—Keep Alive Interval)|(% style="width:94px" %)0x01|(% style="width:226px" %)4
250 |(% style="width:180px" %)RESET|(% style="width:94px" %)0x04|(% style="width:226px" %)2
251 |(% style="width:180px" %)[[Set confirmed mode>>||anchor="HTypeCode0x05"]]|(% style="width:94px" %)0x05|(% style="width:226px" %)2
252 |(% style="width:180px" %)[[Clear Counting>>||anchor="HTypeCode0xA6"]]|(% style="width:94px" %)0xA6|(% style="width:226px" %)2
253 |(% style="width:180px" %)[[Enable/Disable Alarm>>||anchor="HTypeCode0xA7"]]|(% style="width:94px" %)0xA7|(% style="width:226px" %)2
254 |(% style="width:180px" %)[[Control ADR/DR>>||anchor="HTypeCode0xA8"]]|(% style="width:94px" %)0xA8|(% style="width:226px" %)3
255 |(% style="width:180px" %)[[Set Alarm Timeout>>||anchor="HTypeCode0xA9"]]|(% style="width:94px" %)0xA9|(% style="width:226px" %)4
256
257 Example Downlink payload setting in TTN V3:
258
259 [[image:1654673412319-976.png]]
260
261
262 === (% style="color:#037691" %)**Type Code 0x01**(%%) ===
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264 If the payload=0100003C, means to control the LDS02’s Keep Alive interval to 0x00003C=60(S)
265
266
267 === (% style="color:#037691" %)**Type Code 0x04**(%%) ===
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269 If payload = 0x04FF, it will reset the LDS02.
270
271
272 === (% style="color:#037691" %)**Type Code 0x05**(%%) ===
273
274 (((
275 0x05 00: Set uplink to LoRaWAN unconfirmed mode
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277
278 (((
279 0x05 01: Set uplink to LoRaWAN confirmed mode
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281
282
283 === (% style="color:#037691" %)**Type Code 0xA6**(%%) ===
284
285 (((
286 Example: 0xA601: Clear Counting
287 For LDS02: reset both count number and time.
288 )))
289
290
291 === (% style="color:#037691" %)**Type Code 0xA7**(%%) ===
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293 (((
294 0xA7 01 : Equal to AT+DISALARM=1
295 )))
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297 (((
298 0xA7 00 : Equal to AT+DISALARM=0
299 )))
300
301
302 === (% style="color:#037691" %)**Type Code 0xA8**(%%) ===
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304 (((
305 Format: 0xA8 aa bb
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308 (((
309 aa: 1: Enable ADR; 0: Disable ADR (Same as AT+CADR command)
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312 (((
313 bb: set DR (Same as AT+CDATARATE ,only valid after ADR=0)
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315
316 (((
317 Example: 0x A8 00 02 : Set ADR=0 and DR=1
318 )))
319
320
321 === (% style="color:#037691" %)**Type Code 0xA9**(%%) ===
322
323 See [[Alarm Base Timeout>>||anchor="H4.6AlarmBaseonTimeout"]] for detail.
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325
326
327 == 4.5 Integrate with Datacake ==
328
329
330 (((
331 (((
332 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:
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334 )))
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336 (((
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340 (((
341 (% style="color:blue" %)**Step 1**(%%): Be sure that your device is programmed and properly connected to the network at this time.
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343
344 (((
345 (% 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:
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347
348
349 [[image:1654674520913-519.png]]
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352 [[image:1654674530910-914.png]]
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355 [[image:1654674543078-401.png]]
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357
358 (% style="color:blue" %)**Step 3**(%%): Create an account or log in Datacake.
359
360 (% style="color:blue" %)**Step 4**(%%): Search LDS02 and add DevEUI.
361
362 [[image:1654674556510-911.png]]
363
364
365 == 4.6 Alarm Base on Timeout ==
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367
368 (((
369 (((
370 LDS02 can monitor the timeout for a status change, this feature can be used to monitor some event such as open fridge too long etc.
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373 (((
374 User configure this feature by using:
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378 (((
379 (((
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384 (((
385 (((
386 (% style="color:blue" %)**AT Command**(%%) **to configure:**
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388 )))
389
390 * (((
391 (((
392 (% style="color:red" %)**AT+TTRIG=1,30 ** (%%) **~-~->** When status change from close to open, and device keep in open
393 )))
394 )))
395
396 (((
397 (((
398 status for more than 30 seconds. LDS02 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.
399 )))
400 )))
401
402 * (((
403 (((
404 (% style="color:red" %)**AT+TTRIG=0,0** (%%) **~-~->**  Default Value, disable timeout Alarm.
405 )))
406 )))
407
408 (((
409 (((
410
411
412 (% style="color:blue" %)**Downlink Command**(%%) **to configure:**
413 )))
414 )))
415
416 (((
417 (((
418 **Command: (% style="color:red" %)0xA9 aa bb cc(%%)**
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421
422 (((
423 (((
424 A9: Command Type Code
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426 )))
427
428 (((
429 (((
430 aa: status to be monitor
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432 )))
433
434 (((
435 (((
436 bb cc: timeout.
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438 )))
439
440 (((
441 (((
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443 )))
444 )))
445
446 (((
447 (((
448 If user send 0xA9 01 00 1E: equal to AT+TTRIG=1,30
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451
452 (((
453 (((
454 Or
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457
458 (((
459 (((
460 0xA9 00 00 00: Equal to AT+TTRIG=0,0. Disable timeout Alarm.
461 )))
462 )))
463
464
465 == 4.7 LEDs ==
466
467
468 (% border="1" cellspacing="10" style="background-color:#ffffcc; width:463px" %)
469 |=(% style="width: 184px;" %)**Action**|=(% style="width: 275px;" %)**LED behavior**
470 |(% 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(%%)**
471 |(% style="width:184px" %)Joined successful|(% style="width:275px" %)(% style="color:green" %)**GRENN LED **(%%)on 5s
472 |(% style="width:184px" %)Send an uplink message|(% style="width:275px" %)(% style="color:green" %)**GREEN LED**(%%) blinks once
473 |(% style="width:184px" %)Got a downlink message|(% style="width:275px" %)(% style="color:blue" %)**BLUE LED**(%%) blinks once
474
475
476
477 = 5. Battery & How to replace =
478
479 == 5.1 Battery Type and replace ==
480
481
482 (((
483 LDS02 is equipped with 2 x AAA LR03 batteries. If the batteries running low (shows 2.1v in the platform). User can buy generic AAA battery and replace it.
484
485
486 (% style="color:red" %)**Note:**
487
488 1. The LDS02 doesn't have any screw, use can use nail to open it by the middle.
489 1. Make sure the direction is correct when install the AAA batteries.
490 )))
491
492 (((
493 (% style="color:red" %)**Important Notice: Make sure use new AAA LR03 battery and the battery doesn't have broken surface.**
494 )))
495
496 (((
497
498 )))
499
500 (((
501 Example of AAA LR03 batter:
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503
504 [[image:1654675278044-307.png]]
505
506
507 == 5.2 Power Consumption Analyze ==
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509
510 (((
511 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:
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513
514 (((
515 [[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]]
516 )))
517
518
519 = 6. Use AT Command =
520
521 == 6.1 Access AT Command ==
522
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524 LDS02 supports AT Command set. User can use a USB to TTL adapter to configure LDS02 via use AT command, as below.
525
526
527 [[image:image-20220609085453-1.png]]
528
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530 (% style="background-color:yellow" %)**USB to TTL <- -> LDS02**
531
532 (% style="background-color:yellow" %)**RX <- -> TXD**
533
534 (% style="background-color:yellow" %)**TX <- -> RXD**
535
536 (% style="background-color:yellow" %)**GND <- -> GND**
537
538
539 (((
540 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 LDS02. Below is the output for reference:
541 )))
542
543 (((
544 The AT Access password is (% style="color:red" %)**123456**.
545 )))
546
547 [[image:1654675618022-630.png]]
548
549
550 (((
551 Each AT Command need to (% style="color:red" %)**add an ENTER**(%%) at the end before send.
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553
554 (((
555 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.
556 )))
557
558 (((
559 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/]]
560 )))
561
562
563 = 7. FAQ =
564
565 == 7.1 How to upgrade the image? ==
566
567
568 User can upgrade the of LDS02 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]]
569
570
571 == 7.2 How to change the LoRa Frequency Bands/Region? ==
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574 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.
575
576
577 == 7.3 Can I disable uplink for each event to save battery life? ==
578
579
580 Yes, User can use below method to disable this:
581
582
583 (% style="color:blue" %)**via AT Command**:
584
585 (% style="color:red" %)**AT+DISALARM=1**(%%), End node will only send packet in TDC time.
586
587 (% style="color:red" %)**AT+DISALARM=0**(%%), End node will send packet in TDC time or status change for door sensor. 
588
589
590 (% style="color:blue" %)**via LoRaWAN downlink Command**:
591
592 (% style="color:red" %)**0xA701**(%%) : Equal to AT+DISALARM=1
593
594 (% style="color:red" %)**0xA700**(%%) : Equal to AT+DISALARM=0
595
596
597 = 8. Order Info =
598
599
600 **Part Number: (% style="color:blue" %)LDS02-XXX(%%)**
601
602 (% style="color:blue" %)**XXX:**
603
604 * (% style="color:red" %)**EU433**(%%): frequency  bands EU433
605 * (% style="color:red" %)**EU868**(%%): frequency  bands EU868
606 * (% style="color:red" %)**KR920**(%%): frequency  bands KR920
607 * (% style="color:red" %)**CN470**(%%): frequency bands CN470
608 * (% style="color:red" %)**AS923**(%%): frequency  bands AS923
609 * (% style="color:red" %)**AU915**(%%): frequency bands AU915
610 * (% style="color:red" %)**US915**(%%): frequency bands  US915
611 * (% style="color:red" %)**IN865**(%%):  frequency bands  IN865
612 * (% style="color:red" %)**CN779**(%%): frequency bands CN779
613
614
615
616 = 9. Packing Info =
617
618
619 (((
620 **Package Includes**:
621 )))
622
623 * (((
624 LDS02 x 1
625 )))
626
627 (((
628 **Dimension and weight**:
629 )))
630
631 * (((
632 Device Size: 69.2 x 29.2 x 14.8 mm
633
634
635
636
637 )))
638
639 = 10. Support =
640
641
642 * 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.
643 * 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]].
644
645

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