Last modified by Edwin Chen on 2024/02/14 18:51
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4 [[image:1654679359875-169.png]]
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13
14 **Table of Contents:**
15
16 {{toc/}}
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24
25 = 1. Introduction =
26
27 == 1.1 What is LDS02 LoRaWAN Door Sensor ==
28
29
30 (((
31 (((
32 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.
33 )))
34
35 (((
36 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.
37 )))
38
39 (((
40 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.
41 )))
42
43 (((
44 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.
45 )))
46
47 (((
48 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.
49
50
51 )))
52 )))
53
54 [[image:image-20220608171947-2.png]]
55
56
57 == 1.2 Features ==
58
59
60 * LoRaWAN Class A v1.0.3
61 * Frequency Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915/IN865
62 * Door Open/Close detect
63 * Door open/close statistics
64 * 2 x AAA LR03 Batteries
65 * AT Commands to change parameters
66 * Uplink on periodically and open/close action
67 * Remote configure parameters via LoRa Downlink
68 * Firmware upgradable via program port
69
70 == 1.3 Storage & Operation Temperature ==
71
72
73 -10 ~~ 50 °C  or -40 ~~ 60 °C (depends on battery type, see [[FAQ>>||anchor="H7.6Whyiseedifferentworkingtemperatureforthedevice3F"]])
74
75
76 == 1.4 Applications ==
77
78
79 * Smart Buildings & Home Automation
80 * Logistics and Supply Chain Management
81 * Smart Metering
82 * Smart Agriculture
83 * Smart Cities
84 * Smart Factory
85
86 == 1.5 Dimension ==
87
88
89 Unit: mm
90
91 [[image:1654680563545-120.png]]
92
93
94 [[image:1654680510816-654.png]]
95
96
97 == 1.6 Firmware Change log ==
98
99
100 (((
101 (((
102 LDS02 use the same firmware as LDS01：[[LDS02 Image files – Download link>>https://www.dropbox.com/sh/9j35mnsxnz0y3ye/AACj5gHGOURGEHCpj-E861Mua?dl=0]]
103 )))
104 )))
105
106
107 = 2. Power ON LDS02 =
108
109
110 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.
111
112
113 = 3. How to install LDS02 =
114
115
116 Fixed way:
117
118 * Open the housing, install the screw through the reserved mounting hole, fix the bottom of the housing at the location to be detected, and then install the node body to the bottom housing.
119
120 [[image:image-20231222111730-1.jpeg||height="428" width="686"]]
121
122 * The double-sided glue was separated according to the cutting line and glued to the bottom of the LDS02 housing, and then the LDS02 was fixed at the location to be detected.
123
124 [[image:image-20231222111834-2.jpeg||height="443" width="685"]]
125
126
127 (((
128 (((
129 When install the LDS02 on wall. Please make sure install as below so the marks will close to each other when close the door.
130 )))
131
132 (((
133 Open/Close threshold range: ~~ 10mm
134 )))
135 )))
136
137 [[image:1654680716522-793.png||height="505" width="497"]]
138
139
140 = 4. Operation Mode =
141
142 == 4.1 How it works? ==
143
144
145 (((
146 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.
147 )))
148
149 (((
150 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.
151 )))
152
153
154 == 4.2 Example to join LoRaWAN network ==
155
156
157 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. 
158
159 [[image:1654680810108-149.png]]
160
161
162 (((
163 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.
164 )))
165
166 * (((
167 A keep-alive message which send once per day.
168 )))
169 * (((
170 A door event message when there is a door open/close. ([[Alarm event can be disabled>>||anchor="H7.3CanIdisableuplinkforeacheventtosavebatterylife3F"]])
171 )))
172
173 (((
174
175
176 (((
177 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:
178
179
180 )))
181 )))
182
183 (((
184 (% style="color:blue" %)**Step 1**(%%): Create a device in TTN V3 with the OTAA keys from LDS02.
185 )))
186
187 (((
188 Each LDS02 is shipped with a sticker with unique device EUI:
189 )))
190
191 [[image:image-20230426084924-1.png||height="229" width="493"]]
192
193
194 User can enter this key in their LoRaWAN Server portal. Below is TTN V3 screen shot:
195
196
197 **Add APP EUI in the application**
198
199 [[image:1654671794691-956.png]]
200
201
202 [[image:1654671809850-574.png]]
203
204 [[image:1654671820156-640.png]]
205
206
207 [[image:1654681258096-500.png]]
208
209
210 **Select frequency plan**
211
212 If node's frequency is US915 or AU915, the frequency plan of the gateway must be consistent with that of TTN
213
214 [[image:image-20230816091714-1.png]]
215
216
217 **Add APP KEY and DEV EUI**
218
219 [[image:1654671889112-678.png]]
220
221
222
223 (((
224 (% 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.
225 )))
226
227
228 [[image:1654681390551-993.png]]
229
230
231 == 4.3 Uplink Payload ==
232
233
234 Uplink Payload total 10 bytes.
235
236 (% border="1" cellspacing="3" style="background-color:#f2f2f2; width:480px" %)
237 |=(% style="width: 80px;background-color:#4F81BD;color:white" %)**Size(bytes)**|=(% style="width: 80px;background-color:#4F81BD;color:white" %)**2**|=(% style="width: 80px;background-color:#4F81BD;color:white" %)**1**|=(% style="width: 80px;background-color:#4F81BD;color:white" %)**3**|=(% style="width: 80px;background-color:#4F81BD;color:white" %)**3**|=(% style="width: 80px;background-color:#4F81BD;color:white" %)**1**
238 |value|Status&BAT|(((
239 MOD
240 Always:0x01
241 )))|Total open door events|(((
242 Last door open
243 duration (unit: min)
244 )))|[[Alarm>>||anchor="H4.6AlarmBaseonTimeout"]]
245
246 **Example:**
247
248 [[image:1654681706301-731.png]]
249
250 [[image:1654681714641-440.png]]
251
252 (((
253 Example Payload Decoder in TTN V3: [[https:~~/~~/github.com/dragino/dragino-end-node-decoder/tree/main/LDS02>>https://github.com/dragino/dragino-end-node-decoder/tree/main/LDS02]]
254
255
256 === 4.3.1 Battery Info ===
257
258
259 Check the battery voltage for LDS02.
260
261 Ex1: 0x0B88&3FFF = 2952mV
262
263 Ex2: 0xD152&3FFF = 4434mV
264
265
266 === 4.3.2 Status ===
267
268
269 Check the open door Status for LDS02.
270
271 **Example**:
272
273 If payload is: 0B:  (0000 1011&1000 0000== 0), DOOR_OPEN_STATUS is 0（CLOSE）
274
275 If payload is: D1: (1101 0001&1000 0000== 1) , DOOR_OPEN_STATUS is 1（OPEN）
276
277
278 === 4.3.3 MOD ===
279
280
281 Check the MOD
282
283 **Example:**
284
285 If payload is: 01:MOD is 1
286
287
288 === 4.3.4 Total open door events ===
289
290
291 Get Total open door events
292
293 **Example**:
294
295 If payload is: **00 00  93=** 147
296
297 If payload is: **00 00  00= **0
298
299
300 === 4.3.5 Last door open duration (unit: min) ===
301
302
303 Get Last door open duration
304
305 **Example:**
306
307 If payload is: **00 00  25=** 37
308
309 If payload is: **00 00  01= **1
310
311
312 === 4.3.6 Alarm ===
313
314
315 Get Alarm
316
317 **Example:**
318
319 If payload is: 01:  (0001 & 0001== 1), Alarm is 1
320
321 If payload is: 00:  (0000 & 0001== 0), Alarm is 0
322
323
324 )))
325
326 == 4.4 Downlink Payload ==
327
328
329 (% border="1" cellspacing="3" style="background-color:#f2f2f2; width:505px" %)
330 |=(% style="width: 182px;background-color:#4F81BD;color:white" %)**Downlink Control Type**|=(% style="width: 96px;background-color:#4F81BD;color:white" %)**Type Code**|=(% style="width: 227px;background-color:#4F81BD;color:white" %)**Downlink payload size(bytes)**
331 |(% style="width:180px" %)TDC (Transmit Time Interval—Keep Alive Interval)|(% style="width:94px" %)0x01|(% style="width:226px" %)4
332 |(% style="width:180px" %)RESET|(% style="width:94px" %)0x04|(% style="width:226px" %)2
333 |(% style="width:180px" %)[[Set confirmed mode>>||anchor="HTypeCode0x05"]]|(% style="width:94px" %)0x05|(% style="width:226px" %)2
334 |(% style="width:180px" %)[[Clear Counting>>||anchor="HTypeCode0xA6"]]|(% style="width:94px" %)0xA6|(% style="width:226px" %)2
335 |(% style="width:180px" %)[[Enable/Disable Alarm>>||anchor="HTypeCode0xA7"]]|(% style="width:94px" %)0xA7|(% style="width:226px" %)2
336 |(% style="width:180px" %)[[Control ADR/DR>>||anchor="HTypeCode0xA8"]]|(% style="width:94px" %)0xA8|(% style="width:226px" %)3
337 |(% style="width:180px" %)[[Set Alarm Timeout>>||anchor="HTypeCode0xA9"]]|(% style="width:94px" %)0xA9|(% style="width:226px" %)4
338
339 Example Downlink payload setting in TTN V3:
340
341 [[image:1654673412319-976.png]]
342
343
344 === (% style="color:#037691" %)**Type Code 0x01**(%%) ===
345
346 If the payload=0100003C, means to control the LDS02’s Keep Alive interval to 0x00003C=60(S)
347
348
349 === (% style="color:#037691" %)**Type Code 0x04**(%%) ===
350
351 If payload = 0x04FF, it will reset the LDS02.
352
353
354 === (% style="color:#037691" %)**Type Code 0x05**(%%) ===
355
356 (((
357 0x05 00: Set uplink to LoRaWAN unconfirmed mode
358 )))
359
360 (((
361 0x05 01: Set uplink to LoRaWAN confirmed mode
362 )))
363
364
365 === (% style="color:#037691" %)**Type Code 0xA6**(%%) ===
366
367 (((
368 Example: 0xA601: Clear Counting
369 For LDS02: reset both count number and time.
370 )))
371
372
373 === (% style="color:#037691" %)**Type Code 0xA7**(%%) ===
374
375 (((
376 0xA7 01 : Equal to AT+DISALARM=1
377 )))
378
379 (((
380 0xA7 00 : Equal to AT+DISALARM=0
381 )))
382
383
384 === (% style="color:#037691" %)**Type Code 0xA8**(%%) ===
385
386 (((
387 Format: 0xA8 aa bb
388 )))
389
390 (((
391 aa: 1: Enable ADR; 0: Disable ADR (Same as AT+CADR command)
392 )))
393
394 (((
395 bb: set DR (Same as AT+CDATARATE ,only valid after ADR=0)
396 )))
397
398 (((
399 Example: 0x A8 00 02 : Set ADR=0 and DR=1
400 )))
401
402
403 === (% style="color:#037691" %)**Type Code 0xA9**(%%) ===
404
405 See [[Alarm Base Timeout>>||anchor="H4.6AlarmBaseonTimeout"]] for detail.
406
407
408 == 4.5 Integrate with Datacake ==
409
410
411 (((
412 (((
413 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:
414 )))
415 )))
416
417 (((
418
419 )))
420
421 (((
422 (% style="color:blue" %)**Step 1**(%%): Be sure that your device is programmed and properly connected to the network at this time.
423 )))
424
425 (((
426 (% 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:
427 )))
428
429
430 [[image:1654674520913-519.png]]
431
432
433 [[image:1654674530910-914.png]]
434
435
436 [[image:1654674543078-401.png]]
437
438
439 (% style="color:blue" %)**Step 3**(%%): Create an account or log in Datacake.
440
441 (% style="color:blue" %)**Step 4**(%%): Search LDS02 and add DevEUI.
442
443 [[image:1654674556510-911.png]]
444
445
446 == 4.6 Alarm Base on Timeout ==
447
448
449 (((
450 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.
451 )))
452
453 (((
454 User configure this feature by using:
455 )))
456
457 (((
458 (% style="color:blue" %)**AT Command**(%%) **to configure:**
459 )))
460
461 (((
462 * (% style="color:red" %)**AT+TTRIG=1,30 ** (%%) **~-~->** When status change from close to open, and device keep in open
463 )))
464
465 (((
466 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.
467 )))
468
469
470 (((
471 * (% style="color:red" %)**AT+TTRIG=0,0** (%%) **~-~->**  Default Value, disable timeout Alarm.
472 )))
473
474 (((
475 (% style="color:blue" %)**Downlink Command**(%%) **to configure:**
476 )))
477
478 (((
479 **Command: (% style="color:red" %)0xA9 aa bb cc(%%)**
480 )))
481
482 (((
483 **A9: **Command Type Code
484 )))
485
486 (((
487 **aa:** status to be monitor
488 )))
489
490 (((
491 **bb cc:** timeout.
492 )))
493
494 (((
495 If user send 0xA9 01 00 1E: equal to AT+TTRIG=1,30
496 )))
497
498 (((
499 **Or**
500 )))
501
502 (((
503 0xA9 00 00 00: Equal to AT+TTRIG=0,0. Disable timeout Alarm.
504 )))
505
506
507 == 4.7 LEDs ==
508
509
510 (% border="1" cellspacing="3" style="background-color:#f2f2f2; width:463px" %)
511 |=(% style="width: 186px;background-color:#4F81BD;color:white" %)**Action**|=(% style="width: 277px;background-color:#4F81BD;color:white" %)**LED behavior**
512 |(% 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(%%)**
513 |(% style="width:184px" %)Joined successful|(% style="width:275px" %)(% style="color:green" %)**GRENN LED **(%%)on 5s
514 |(% style="width:184px" %)Send an uplink message|(% style="width:275px" %)(% style="color:green" %)**GREEN LED**(%%) blinks once
515 |(% style="width:184px" %)Got a downlink message|(% style="width:275px" %)(% style="color:blue" %)**BLUE LED**(%%) blinks once
516
517 = 5. Battery & How to replace =
518
519 == 5.1 Battery Type and replace ==
520
521
522 (((
523 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.
524
525 (% style="color:red" %)**Note:**
526
527 1. The LDS02 doesn't have any screw, use can use nail to open it by the middle.
528 1. Make sure the direction is correct when install the AAA batteries.
529 )))
530
531 (((
532 (% style="color:red" %)**Important Notice: Make sure use new AAA LR03 battery and the battery doesn't have broken surface.**
533 )))
534
535 (((
536
537 )))
538
539 (((
540 Example of AAA LR03 batter:
541 )))
542
543 [[image:1654675278044-307.png]]
544
545
546 == 5.2 Power Consumption Analyze ==
547
548
549 (((
550 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:
551 )))
552
553 (((
554 [[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]]
555 )))
556
557
558 = 6. Use AT Command =
559
560 == 6.1 Access AT Command ==
561
562
563 LDS02 supports AT Command set. User can use a USB to TTL adapter to configure LDS02 via use AT command, as below.
564
565 [[image:image-20221226104705-1.png||height="572" width="872"]]
566
567
568 (((
569 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:
570 )))
571
572 (((
573 The AT Access password is (% style="color:red" %)**123456**.
574 )))
575
576 [[image:1654675618022-630.png]]
577
578
579 (((
580 Each AT Command need to (% style="color:red" %)**add an ENTER**(%%) at the end before send.
581 )))
582
583 (((
584 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.
585 )))
586
587 (((
588 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/]]
589 )))
590
591
592 = 7. FAQ =
593
594 == 7.1 How to upgrade the image? ==
595
596
597 **~1. Connect DAPLINK and LDS02**
598
599 [[image:http://wiki.dragino.com/xwiki/bin/download/Main/Firmware%20Upgrade%20Instruction/WebHome/image-20220527084230-4.png?rev=1.1||alt="image-20220527084230-4.png"]]
600
601 [[image:image-20230726175624-1.jpeg||height="565" width="753"]]
602
603 **3.3V<~-~-~-~-->VDD**
604
605 **CLK<~-~-~-~-~-~->CLK**
606
607 **DIO<~-~-~-~-~-~->DIO (SWD)**
608
609 **GND<~-~-~-~-~-~->GND**
610
611
612 **2. Install PSoCProgrammer 3.27.1**
613
614 Download Link: [[PSoCProgrammer3.27.1>>url:https://www.dragino.com/downloads/index.php?dir=tools/]]
615
616 And then use PSoCProgrammer to upgrade the firmware ( **must use this version: PSoCProgrammer3.27.1** )
617
618 [[image:http://wiki.dragino.com/xwiki/bin/download/Main/Firmware%20Upgrade%20Instruction/WebHome/image-20220527084537-7.png?rev=1.1||alt="image-20220527084537-7.png"]]
619
620
621 **3. Download Sensor Firmware**
622
623 Downlink [[Firmware Location(same as LDS01)>>url:https://www.dropbox.com/sh/9j35mnsxnz0y3ye/AACj5gHGOURGEHCpj-E861Mua?dl=0]] to prepare the update.
624
625
626 **4. Upgrade Firmware**
627
628 Open PSOC Programmer, select the default configuration, no need to modify
629
630 [[image:http://wiki.dragino.com/xwiki/bin/download/Main/Firmware%20Upgrade%20Instruction/WebHome/image-20220527084612-8.png?rev=1.1||alt="image-20220527084612-8.png"]]
631
632 Click the file icon to select the software to be burned：
633
634 [[image:http://wiki.dragino.com/xwiki/bin/download/Main/Firmware%20Upgrade%20Instruction/WebHome/image-20220527084705-9.png?rev=1.1||alt="image-20220527084705-9.png"]]
635
636 [[image:http://wiki.dragino.com/xwiki/bin/download/Main/Firmware%20Upgrade%20Instruction/WebHome/image-20220527084739-10.png?width=1034&height=453&rev=1.1||alt="image-20220527084739-10.png" height="453" width="1034"]]
637
638 Click the download icon, and the progress bar as shown in the figure below will appear. When PASS appears, it proves that the burning is successful.
639
640 [[image:http://wiki.dragino.com/xwiki/bin/download/Main/Firmware%20Upgrade%20Instruction/WebHome/image-20220527084831-11.png?rev=1.1||alt="image-20220527084831-11.png"]]
641
642 [[image:http://wiki.dragino.com/xwiki/bin/download/Main/Firmware%20Upgrade%20Instruction/WebHome/image-20220527084907-12.png?rev=1.1||alt="image-20220527084907-12.png"]]
643
644 (% style="color:red" %)**It is very important to press the reset button after the upgrade., this is to set the device to work in Low Power mode.**
645
646 (% style="color:red" %)**If you change different LoRa Frequency Bands/Region, you need using AT+FDR command to restore factory data after program success.**
647
648
649 == 7.2 How to change the LoRa Frequency Bands/Region? ==
650
651
652 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.
653
654
655 == 7.3 Can I disable uplink for each event to save battery life? ==
656
657
658 Yes, User can use below method to disable this:
659
660
661 (% style="color:blue" %)**via AT Command**:
662
663 (% style="color:red" %)**AT+DISALARM=1**(%%), End node will only send packet in TDC time.
664
665 (% style="color:red" %)**AT+DISALARM=0**(%%), End node will send packet in TDC time or status change for door sensor. 
666
667
668 (% style="color:blue" %)**via LoRaWAN downlink Command**:
669
670 (% style="color:red" %)**0xA701**(%%) : Equal to AT+DISALARM=1
671
672 (% style="color:red" %)**0xA700**(%%) : Equal to AT+DISALARM=0
673
674
675 == 7.4 How to change Sub-Band for LDS02? ==
676
677
678 (% style="color:blue" %)**Before v1.6 firmware**(%%): LDS02 works in Subband 2 by default in AU915 / US915 band. So if the LoRaWAN server works in other subband, there will be issue for LDS02 to Join the server. In this case, User can use AT COmmand to change the subband. See AT Command chapther for the hardware connection. Below are the steps to change sub-band:
679
680 * Press rest button.
681 * Send (% style="color:blue" %)**123456**(%%) password
682 * Send command (% style="color:blue" %)**AT+CFREQBANDMASK=0006 **(%%)( 0001 for subband 1, 0002 for subband 2, etc..)
683 * Press rest button to restart to new subband
684 * Example output:
685
686 (% class="mark small" %)[3369]DRAGINO LWL01 Device
687 [3370]Frequency Band: US915 v1.5
688 [3373]OTAA
689 [3374]DevEui= 7896785455246354
690 [3377]class type A
691 [3379]freq mode intra
692 [3381]**scan chn mask 0x0002   ~-~-> use subband 2**
693
694 (% class="mark small" %)LM502:~~# [10793]txDone
695 123456       ~-~-> ENTER PASSWORD
696 Correct Password
697
698 (% class="mark small" %)[105115]rxTimeOut
699 **AT+CFREQBANDMASK=0020 ~-~-> Change to Subband6**
700 OK
701
702 (% class="mark small" %)[3371]DRAGINO LWL01 Device
703 [3373]Frequency Band: US915 v1.5
704 [3376]OTAA
705 [3377]DevEui= 7896785455246354
706 [3380]class type A
707 [3382]freq mode intra
708 [3384]**scan chn mask 0x0001  ~-~-> reboot and works on Subband1 now**
709
710 [[image:image-20230103143821-1.png]]
711
712
713 (% style="color:blue" %)**Since firmware v1.6: **(%%)LDS02 works in chn mask 0x0000. where cover all subbands. so no need to use AT Commands to change subband and it can works for every subband
714
715
716 == 7.5 My sensor works for Helium AU915 before but not it doesn't work, Why? ==
717
718
719 It is sub-band issue, See chapter 7.4.Helium Change the Subband for AU915 from subband2 to Subband6 which cause the sensor doesn't work.
720
721
722 == 7.6 Why i see different working temperature for the device? ==
723
724
725 The working temperature range of device depends on the battery user choose.
726
727 * Normal AAA Battery can support -10 ~~ 50°C working range.
728 * Special AAA battery can support -40 ~~ 60 °C working range. For example: [[Energizer L92>>url:https://data.energizer.com/pdfs/l92.pdf]]
729
730 = 8. Order Info =
731
732
733 **Part Number: (% style="color:blue" %)LDS02-XXX(%%)**
734
735 (% style="color:blue" %)**XXX:**(%%) The default frequency band
736
737 * (% style="color:red" %)**EU433**(%%): frequency  bands EU433
738 * (% style="color:red" %)**EU868**(%%): frequency  bands EU868
739 * (% style="color:red" %)**KR920**(%%): frequency  bands KR920
740 * (% style="color:red" %)**CN470**(%%): frequency bands CN470
741 * (% style="color:red" %)**AS923**(%%): frequency  bands AS923
742 * (% style="color:red" %)**AU915**(%%): frequency bands AU915
743 * (% style="color:red" %)**US915**(%%): frequency bands  US915
744 * (% style="color:red" %)**IN865**(%%):  frequency bands  IN865
745 * (% style="color:red" %)**CN779**(%%): frequency bands CN779
746
747 = 9. Packing Info =
748
749
750 (((
751 **Package Includes**:
752 )))
753
754 * (((
755 LDS02 x 1
756 )))
757
758 (((
759 **Dimension and weight**:
760 )))
761
762 * (((
763 Device Size: 69.2 x 29.2 x 14.8 mm
764
765
766 )))
767
768 = 10. Support =
769
770
771 * 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.
772
773 * 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]].
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