Version 226.2 by Xiaoling on 2023/02/03 11:41
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1 (% style="text-align:center" %)
2 [[image:image-20230203113613-1.png]]
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5
6
7 **Table of Contents:**
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15
16
17 = 1.  Introduction =
18
19 == 1.1 ​ What is LMDS120 Microwave Radar DistanceSensor ==
20
21
22 (((
23 The Dragino LMDS120 is a LoRaWAN Microwave Radar distance sensor. It uses use Microwave Radar to detect the distance between sensor and different objects. Different from ultrosonic or Lidar measurement. Microwave Radar is more reliable for condensation / dusty environment. It can sense correct distance even there is water or think dust on top of the sensor.
24
25 The LMDS120 can be applied to scenarios such as horizontal distance measurement, parking management system, object proximity and presence detection, intelligent trash can management system, robot obstacle avoidance, automatic control, sewer, etc.
26
27 The LoRa wireless technology used in LMDS120 allows device to send data and reach extremely long ranges at low data-rates. It provides ultra-long range spread spectrum communication and high interference immunity whilst minimizing current consumption.
28
29 LMDS120 is powered by 8500mAh Li-SOCI2 battery, it is designed for long term use up to 5 years.
30
31 Each LMDS120 is pre-load with a set of unique keys for LoRaWAN registrations, register these keys to local LoRaWAN server and it will auto connect after power on.
32 )))
33
34
35 [[image:image-20230203114147-2.png]]
36
37
38 == ​1.2  Features ==
39
40
41 * LoRaWAN 1.0.3 Class A
42 * Ultra-low power consumption
43 * Microwave Radar for distance detection
44 * Short uplink interval for Distance Alarm
45 * Monitor Battery Level
46 * Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915/IN865
47 * AT Commands to change parameters
48 * Uplink on periodically
49 * Downlink to change configure
50 * 8500mAh Battery for long term use
51 * Wall Mountable
52 * Outdoor Use
53
54
55 == 1.3  Radar probe specification ==
56
57
58 * Measuring Method: FMCW
59 * Frequency: 24.000 ~~ 24.500 GHz
60 * Measurement output power: 6dBm
61 * Measure range: 0.5 ~~ 20m
62 * Accuracy: ±0.1m
63 * Resolution: 0.01m
64 * Horizontal Angel: 78°
65 * Vertical Angel: 23°
66
67
68 == 1.4  Storage & Operation Temperature ==
69
70
71 -20°C to +85°C
72
73
74 == 1.5 ​ Applications ==
75
76
77 * Horizontal distance measurement
78 * Liquid level measurement
79 * Parking management system
80 * Object proximity and presence detection
81 * Intelligent trash can management system
82 * Robot obstacle avoidance
83 * Automatic control
84 * Sewer
85 * Bottom water level monitoring
86
87
88 == 1.6  Installation ==
89
90
91 Sensor measure direction and angle is as below. When install the sensor, please make sure the sensor direct to object.
92
93
94 [[image:image-20220615152454-3.png]]
95
96
97 [[image:image-20220615152454-4.png||height="398" width="731"]]
98
99 (% style="display:none" %) (%%)
100
101 == 1.7  Pin mapping and power on ==
102
103
104 [[image:1655257026882-201.png]]
105
106 (% style="display:none" %) (%%)
107
108 = 2.  Operation Mode =
109
110 == 2.1  How it works ==
111
112
113 (((
114 Each LMDS200 is shipped with a worldwide unique set of OTAA keys. To use LMDS200 in a LoRaWAN network, user needs to input the OTAA keys in the LoRaWAN network server. So LMDS200 can join the LoRaWAN network and start to transmit sensor data.
115 )))
116
117
118 == 2.2  ​Example to use for LoRaWAN network ==
119
120
121 (((
122 Following is an example for how to join the [[TTN v3 LoRaWAN Network>>url:https://console.cloud.thethings.network/]]. Below is the network structure; we use the [[LG308>>url:http://www.dragino.com/products/lora/item/140-lg308.html]] as a LoRaWAN gateway in this example.
123 )))
124
125 (((
126 [[image:1655278047781-517.png]]
127
128 * In this user case, the LMDS200 is installed on top of river to detect the water level and send the level info to the LoRaWAN server. The LMDS200 will uplink different types of messages to the LoRaWAN server. See [[Uplink payload>>path:#Uplink_Payload]] for detail.
129 )))
130
131 (((
132 Assume the LoRaWAN Gateway DLOS8 is already set to connect to the [[TTN V3 network >>url:https://eu1.cloud.thethings.network]]. We need to add the LMDS200 device in TTN V3:
133 )))
134
135 (((
136 (((
137
138 )))
139
140 (((
141 (% style="color:blue" %)**Step 1**(%%): Create a device in TTN with the OTAA keys from LMDS200.
142 )))
143 )))
144
145 (((
146 (((
147 Each LMDS200 is shipped with a sticker with the default device keys, user can find this sticker in the box. it looks like below.
148
149 [[image:1655278302970-688.png]]
150
151
152
153 )))
154 )))
155
156 Users can enter these keys in the LoRaWAN Server portal. Below is the TTN V3 screenshot:
157
158 __**Add APP EUI**__ in the application.
159
160
161 [[image:image-20220610161353-4.png]]
162
163 [[image:image-20220610161353-5.png]]
164
165 [[image:image-20220610161353-6.png]]
166
167
168 [[image:image-20220610161353-7.png]]
169
170
171
172 You can also choose to create the device manually.
173
174 [[image:image-20220610161538-8.png]]
175
176
177
178 **Add APP KEY and DEV EUI**
179
180 [[image:1655278497961-944.png]]
181
182
183
184 (% style="color:blue" %)**Step 2**(%%):  Power on LMDS200
185
186
187 Put a Jumper on JP2 to power on the device. ( The Switch must be in FLASH position).
188
189 [[image:1655278589727-228.png]]
190
191 (((
192 Put the jumper to power on LMDS200 and it will auto-join to the TTN V3 network. After join success, it will start to upload sensor data to TTN V3 and the user can see it in the panel.
193 )))
194
195
196 == 2.3  ​Uplink Payload ==
197
198
199 Uplink payloads have two types:
200
201 * Distance Value: Use FPORT=2
202 * Other control commands: Use other FPORT fields.
203
204 The application server should parse the correct value based on FPORT settings.
205
206 (((
207 (((
208 (((
209
210 )))
211 )))
212 )))
213
214 === 2.3.1  Device Status, FPORT~=5 ===
215
216
217 (((
218 Include device configure status. Once LMDS200 Joined the network, it will uplink this message to the server.
219 )))
220
221 (((
222 Users can also use the downlink command (0x26 01) to ask LMDS200 to resend Device Status.
223 )))
224
225 [[image:image-20220615154327-2.png]]
226
227
228 [[image:image-20220615154022-1.png]](% style="display:none" %)
229
230
231 * (% style="color:#037691" %)**Sensor Model**(%%)**:** For LMDS200, this value is 0x0C
232
233 * (% style="color:#037691" %)**Firmware Version**(%%)**:** 0x0100, Means: v1.0.0 version
234
235 * (% style="color:#037691" %)**Frequency Band**(%%)**:**
236
237 *0x01: EU868
238
239 *0x02: US915
240
241 *0x03: IN865
242
243 *0x04: AU915
244
245 *0x05: KZ865
246
247 *0x06: RU864
248
249 *0x07: AS923
250
251 *0x08: AS923-1
252
253 *0x09: AS923-2
254
255 *0x0a: AS923-3
256
257 *0x0b: CN470
258
259 *0x0c: EU433
260
261 *0x0d: KR920
262
263 *0x0e: MA869
264
265
266 * (% style="color:#037691" %)**Sub-Band**(%%)**:**
267 ** AU915 and US915:value 0x00 ~~ 0x08
268 ** CN470: value 0x0B ~~ 0x0C
269 ** Other Bands: Always 0x00
270
271 * (% style="color:#037691" %)**Battery Info:**
272
273 Check the battery voltage.
274
275 Ex1: 0x0B45 = 2885mV
276
277 Ex2: 0x0B49 = 2889mV
278
279
280 === 2.3.2  Sensor Configuration, FPORT~=4 ===
281
282
283 (((
284 LMDS200 will only send this command after getting the downlink command (0x26 02) from the server.
285
286 (% border="1" cellspacing="4" style="background-color:#ffffcc; width:413px" %)
287 |=(% colspan="5" style="width: 410px;" %)**Sensor Configuration FPORT=4**
288 |**Size(bytes)**|(% style="width:84px" %)**3**|(% style="width:73px" %)**1**|(% style="width:74px" %)**4**|(% style="width:76px" %)**1**
289 |**Value**|(% style="width:84px" %)(((
290 [[TDC (unit:sec)>>||anchor="H3.1A0SetTransmitIntervalTime280x0129"]]
291 )))|(% style="width:73px" %)(((
292 [[ATDC (unit:min)>>||anchor="H3.2SetAlarmTransmitIntervalTime280x0D29"]]
293 )))|(% style="width:74px" %)[[Alarm Settings>>||anchor="H3.3SetAlarmDistance280xA229"]]|(% style="width:76px" %)[[Interrupt Settings>>||anchor="H3.5A0SetInterruptMode280x0629"]]
294 )))
295
296 [[image:1655279779620-413.png]]
297
298
299 === 2.3.3  Distance, Uplink FPORT~=2 ===
300
301
302 LMDS200 will send this uplink **after** Device Status once join the LoRaWAN network successfully. And LMDS200 will:
303
304 1. periodically send this uplink every 1 hour (TDC time), this interval [[can be changed>>||anchor="H3.1A0SetTransmitIntervalTime280x0129"]].
305 1. periodically send this uplink every 1 minute in Alarm Mode.
306 1. send this uplink while there is [[interrupt event>>||anchor="H3.5A0SetInterruptMode280x0629"]].
307
308 Uplink Payload totals 11 bytes.
309
310
311 (% border="1" cellspacing="4" style="background-color:#ffffcc; width:370px" %)
312 |=(% colspan="5" style="width: 367px;" %)**Distance Value, FPORT=2**
313 |(% style="width:72px" %)**Size(bytes)**|(% style="width:43px" %)**2**|(% style="width:76px" %)**2**|(% style="width:76px" %)**2**|(% style="width:75px" %)**1**
314 |(% style="width:72px" %)**Value**|(% style="width:43px" %)[[BAT>>||anchor="H2.3.1A0DeviceStatus2CFPORT3D5"]]|(% style="width:76px" %)Object1 Distance|(% style="width:76px" %)Object2 Distance|(% style="width:75px" %)Status & [[Alarm>>||anchor="H3.3SetAlarmDistance280xA229"]]
315
316 [[image:image-20220615161345-5.png]]
317
318
319 [[image:image-20220615160828-3.png]]
320
321
322 (((
323 (% style="color:#037691" %)** Object1 Distance:**
324 )))
325
326 (((
327 Distance between sensor probe to the first object. (unit: cm)
328 )))
329
330 (((
331 For example, if the data you get from the register is __0x00 0x73__, the distance between the sensor and the measured object is(% style="color:#037691" %)** 0073(H) = 115 (D) = 115 cm.**
332 )))
333
334
335 (((
336 (% style="color:red" %)**Notice: There are two special values for object 1 distance:**
337 )))
338
339 * (((
340 **0x0001**: Probe not detected
341 )))
342 * (((
343 **0x0002**: Reading Invalid (exceed the valid range of the probe)
344 )))
345
346 (((
347
348 )))
349
350 (((
351 (% style="color:#037691" %)**Object2 Distance:**
352 )))
353
354 (((
355 Distance between sensor probe to the second object. (unit: cm)
356 )))
357
358 (((
359 DALARM Counter : Alarm Counter.
360 )))
361
362 (((
363
364 )))
365
366 [[image:image-20220615160828-4.png]]
367
368
369 === 2.3.4  Decoder in TTN V3 ===
370
371
372 [[image:1655261164557-670.png]]
373
374 (((
375 (((
376 Please check the decoder from this link: [[https:~~/~~/github.com/dragino/dragino-end-node-decoder>>https://github.com/dragino/dragino-end-node-decoder]]
377
378
379 )))
380 )))
381
382 == 2.4  ​Show data on Datacake ==
383
384
385 (((
386 Datacake IoT platform provides a human-friendly interface to show the sensor data, once we have sensor data in TTN V3, we can use Datacake to connect to TTN V3 and see the data in Datacake. Below are the steps:
387
388
389 )))
390
391 (((
392 (% style="color:blue" %)**Step 1**(%%)**: **Link TTNv3 to [[DATACAKE>>url:https://datacake.co/]]
393 )))
394
395 (((
396 (% style="color:blue" %)**Step 2**(%%)**: **Configure LMDS200 in Datacake
397 )))
398
399
400 [[image:image-20220615163646-6.png]]
401
402
403 [[image:image-20220615163646-7.png]]
404
405
406 [[image:image-20220615163646-8.png]]
407
408
409 [[image:image-20220615163646-9.png||height="392" width="1211"]]
410
411
412 [[image:image-20220615163646-10.png]]
413
414 (% style="display:none" %) (%%)
415
416 [[image:image-20220615163646-11.png||height="434" width="1206"]](% style="display:none" %)
417
418
419 [[image:image-20220615163646-12.png||height="357" width="1202"]](% style="display:none" %)
420
421 (% style="display:none" %) (%%)
422
423 [[image:image-20220615163646-13.png]](% style="display:none" %)
424
425
426 [[image:image-20220615163646-14.png]]
427
428
429 [[image:image-20220615163646-15.png]](% style="display:none" %)
430
431
432 = 3.  Configure LMDS200 via AT Command or LoRaWAN Downlink =
433
434
435 (((
436 (((
437 Use can configure LMDS200 via AT Command or LoRaWAN Downlink.
438 )))
439 )))
440
441 * (((
442 (((
443 AT Command Connection: See [[FAQ>>||anchor="H5.A0FAQ"]].
444 )))
445 )))
446 * (((
447 (((
448 LoRaWAN Downlink instruction for different platforms: [[IoT LoRaWAN Server>>doc:Main.WebHome]]
449 )))
450 )))
451
452 (((
453 (((
454
455 )))
456
457 (((
458 There are two kinds of commands to configure LMDS200, they are:
459 )))
460 )))
461
462 * (((
463 (((
464 (% style="color:#4f81bd" %)** General Commands**.
465 )))
466 )))
467
468 (((
469 (((
470 These commands are to configure:
471 )))
472 )))
473
474 * (((
475 (((
476 General system settings like: uplink interval.
477 )))
478 )))
479 * (((
480 (((
481 LoRaWAN protocol & radio related command.
482 )))
483 )))
484
485 (((
486 (((
487 They are same for all Dragino Device which support DLWS-005 LoRaWAN Stack**(Note~*~*)**. These commands can be found on the wiki: [[End Device AT Commands and Downlink Command>>doc:Main.End Device AT Commands and Downlink Command.WebHome]]
488 )))
489 )))
490
491 (((
492 (((
493
494 )))
495 )))
496
497 * (((
498 (((
499 (% style="color:#4f81bd" %)** Commands special design for LMDS200**
500 )))
501 )))
502
503 (((
504 (((
505 These commands only valid for LMDS200, as below:
506 )))
507 )))
508
509
510 == 3.1  Set Transmit Interval Time(0x01) ==
511
512
513 Feature: Change LoRaWAN End Node Transmit Interval.
514
515 (% style="color:#037691" %)**AT Command: AT+TDC**
516
517 (% aria-label="image-20220610173409-7.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220610173409-7.png||data-widget="image"]](% title="Click and drag to resize" %)​(% aria-label="Data URI image image widget" contenteditable="false" role="region" style="background-image:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" tabindex="-1" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||data-widget="image" draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% aria-label="Data URI image image widget" contenteditable="false" role="region" style="background-image:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220, 220, 220, 0.5); display:none" tabindex="-1" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% aria-label="Data URI image image widget" contenteditable="false" role="region" style="background-image:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" tabindex="-1" title="Click and drag to resize" %)​(% title="Click and drag to resize" %)​
518
519
520 (((
521 (% style="color:#037691" %)**Downlink Command: 0x01**
522 )))
523
524 (((
525 (((
526 Format: Command Code (0x01) followed by 3 bytes time value.
527
528 (((
529 If the downlink payload=0100003C, it means set the END Node's Transmit Interval to 0x00003C=60(S), while type code is 01.
530 )))
531
532 * Example 1: Downlink Payload: 0100001E ~/~/ Set Transmit Interval (TDC) = 30 seconds
533 * Example 2: Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds
534 )))
535 )))
536
537
538
539 == 3.2 Set Alarm Transmit Interval Time(0x0D) ==
540
541
542 Feature: Change LoRaWAN End Node Alarm Transmit Interval. Default Value: 1 minute
543
544 (% style="color:#037691" %)**AT Command: AT+ATDC**
545
546 [[image:image-20220615175212-2.png]]
547
548
549 (% style="color:#037691" %)**Downlink Command: 0x0D**
550
551 Format: Command Code (0x0D) followed by 1 byte for time value.
552
553 If the downlink payload=0D02, it means set the END Node's Alarm Transmit Interval to 2 minutes, while type code is 0D.
554
555
556 == 3.3 Set Alarm Distance (0xA2) ==
557
558
559 LMDS02 supports Alarm Feature, when LMDS02 detect the distance exceed the alarm settings, LMDS02 will Enter Alarm Mode and use the [[ATDC interval>>path:#Alarm_Interval]] (default is 1 minute) to uplink Distance value. Alarm mode will last for 60 uplinks (default 1 hour) and can be close by downlink command 0xA300.
560
561 (% style="color:red" %)**Note: Alarm mode only valid for the Distance 1(the Closest Object)**
562
563
564 User can set Alarm Distance to enable/disable Alarm Mode.
565
566 (% style="color:#037691" %)**AT+ALARMC=AABBCCDD**
567
568 * AABB: Hex value for Alarm low threshold, CCDD: Hex value for Alarm high threshold
569 * When 0xAABB=0, and 0xCCDD≠0, Alarm trigger when higher than max
570 * When 0xAABB≠0, and 0xCCDD =0xFFFF, Alarm trigger when lower than min
571 * When 0xAABB≠0 and 0xCCDD≠0, Alarm trigger when higher than max or lower than min
572
573 **Example:**
574
575 AT+ALARMC=006400C8   ~/~/ Alarm when < 100 or higher than 200.
576
577
578 * (% style="color:#037691" %)**Downlink Payload:**
579
580 0x(A2 00 01 00 00)  ~/~/ Same as AT+ALARMC=00010000
581
582
583 == 3.4 Enter/Exit Alarm Mode (0xA3) ==
584
585
586 Feature: Enter/Exit Alarm mode:
587
588 (% style="color:#037691" %)**AT Command: AT+ALARM=0(Exit Alarm Mode or AT+ALARM=1 (Enter Alarm Mode)**
589
590
591 (% style="color:#037691" %)**Downlink Command:**
592
593 0xA3 00  ~/~/ Exit Alarm Mode. 
594
595 0xA3 01  ~/~/ Enter Alarm Mode. Enter Alarm mode will use ATDC interval in the next 59 uplinks.
596
597
598 == 3.5  Set Interrupt Mode(0x06) ==
599
600
601 (((
602 Feature, Set Interrupt mode for GPIO_EXIT.
603 )))
604
605 (((
606 (% style="color:#037691" %)**Downlink Command: AT+INTMOD**
607 )))
608
609 [[image:image-20220610174917-9.png]]
610
611
612 (((
613 (((
614 (% style="color:#037691" %)**Downlink Command: 0x06**
615 )))
616 )))
617
618 (((
619 (((
620 Format: Command Code (0x06) followed by 3 bytes.
621 )))
622 )))
623
624 (((
625 (((
626 (((
627 This means that the interrupt mode of the end node is set to 0x000003=3 (rising edge trigger), and the type code is 06.
628 )))
629 )))
630 )))
631
632 * (((
633 (((
634 Example 1: Downlink Payload: 06000000  ~/~/ Turn off interrupt mode
635 )))
636 )))
637 * (((
638 (((
639 Example 2: Downlink Payload: 06000003  ~/~/ Set the interrupt mode to rising edge trigger
640 )))
641 )))
642
643 (((
644
645
646
647 = 4.  Battery & how to replace =
648
649 == 4.1  Battery Type ==
650
651
652 (((
653 (((
654 LMDS200 is equipped with a [[8500mAH ER26500 Li-SOCI2 battery>>url:https://www.dragino.com/downloads/index.php?dir=datasheet/Battery/ER26500/]]. The battery is un-rechargeable battery with low discharge rate targeting for 8~~10 years use. This type of battery is commonly used in IoT target for long-term running, such as water meter.
655 )))
656
657 (((
658 The discharge curve is not linear so can't simply use percentage to show the battery level. Below is the battery performance.
659
660
661 )))
662
663 [[image:image-20220615165029-16.png||height="645" width="908"]]
664
665
666 Minimum Working Voltage for the LMDS200:
667
668 LMDS200:  2.45v ~~ 3.6v
669 )))
670
671
672 == 4.2  Replace Battery ==
673
674
675 Any battery with range 2.45 ~~ 3.6v can be a replacement. We recommend to use Li-SOCl2 Battery.
676
677 And make sure the positive and negative pins match.
678
679
680 == 4.3  Power Consumption Analyze ==
681
682
683 Dragino Battery powered product are all runs in Low Power mode. We have an update battery calculator which base on the measurement of the real device. User can use this calculator to check the battery life and calculate the battery life if want to use different transmit interval.
684
685 Instruction to use as below:
686
687
688 (% style="color:blue" %)**Step 1**(%%)**: **Downlink the up-to-date DRAGINO_Battery_Life_Prediction_Table.xlsx from:
689
690 [[https:~~/~~/www.dragino.com/downloads/index.php?dir=LoRa_End_Node/Battery_Analyze/>>url:https://www.dragino.com/downloads/index.php?dir=LoRa_End_Node/Battery_Analyze/]]
691
692
693 (% style="color:blue" %)**Step 2**(%%)**:** Open it and choose
694
695 * Product Model
696 * Uplink Interval
697 * Working Mode
698
699 And the Life expectation in difference case will be shown on the right.
700
701 [[image:image-20220615165329-17.png||height="388" width="1201"]]
702
703
704 (((
705 (% id="cke_bm_628908S" style="display:none" %) (%%)The battery related documents as below:
706 )))
707
708 * (((
709 [[Battery Dimension>>https://www.dragino.com/downloads/index.php?dir=datasheet/Battery/]]
710 )))
711 * (((
712 [[Lithium-Thionyl Chloride Battery  datasheet>>https://www.dragino.com/downloads/index.php?dir=datasheet/Battery/ER26500/]](% style="display:none" %)
713 )))
714 * (((
715 [[Lithium-ion Battery-Capacitor datasheet>>https://www.dragino.com/downloads/index.php?dir=datasheet/Battery/ER26500/]]
716 )))
717
718 [[image:image-20220615111024-1.png]]
719
720
721 === 4.3.1  Battery Note ===
722
723
724 The Li-SICO battery is designed for small current / long period application. It is not good to use a high current, short period transmit method. The recommended minimum period for use of this battery is 5 minutes. If you use a shorter period time to transmit LoRa, then the battery life may be decreased.
725
726
727 === 4.3.2  Replace the battery ===
728
729
730 (((
731 You can change the battery in the LMDS200.The type of battery is not limited as long as the output is between 3v to 3.6v. 
732 )))
733
734 (((
735 The default battery pack of LMDS200 includes a ER26500 plus super capacitor. If user can't find this pack locally, they can find ER26500 or equivalence, which will also work in most case. The SPC can enlarge the battery life for high frequency use (update period below 5 minutes).
736 )))
737
738
739 )))
740
741 = 5.  FAQ =
742
743 == 5.1  How to use AT Command to configure LMDS200 ==
744
745
746 LMDS200 UART connection photo
747
748
749 [[image:image-20220615180555-3.png||height="541" width="863"]]
750
751
752 LMDS200 supports AT Command set. User can use a USB to TTL adapter plus the 3.5mm Program Cable to connect to LMDS200 to use AT command, as below.
753
754 [[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/test/WebHome/1654135840598-282.png?rev=1.1||alt="1654135840598-282.png"]]
755
756
757 In the PC, you need to set the serial baud rate to (% style="color:green" %)**9600**(%%) to access the serial console for LMDS200. LMDS200 will output system info once power on as below:
758
759 [[image:image-20220615180555-4.png]]
760
761
762 == 5.2  How to upgrade the firmware? ==
763
764
765 (((
766 A new firmware might be available for:
767 )))
768
769 * (((
770 Support new features
771 )))
772 * (((
773 For bug fix
774 )))
775 * (((
776 Change LoRaWAN bands.
777 )))
778
779 (((
780 Instruction for how to upgrade: [[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/Firmware%20Upgrade%20Instruction%20for%20STM32%20base%20products/#H2.HardwareUpgradeMethodSupportList>>http://wiki.dragino.com/xwiki/bin/view/Main/Firmware%20Upgrade%20Instruction%20for%20STM32%20base%20products/#H2.HardwareUpgradeMethodSupportList]]
781 )))
782
783 (((
784
785 )))
786
787 (((
788 Firmware location: [[https:~~/~~/www.dragino.com/downloads/index.php?dir=LoRa_End_Node/LMDS200/Firmware/>>url:https://www.dragino.com/downloads/index.php?dir=LoRa_End_Node/LDS03A/Firmware/]]
789 )))
790
791
792 == 5.3  How to change the LoRa Frequency Bands/Region ==
793
794
795 You can follow the instructions for [[how to upgrade image>>||anchor="H5.2A0Howtoupgradethefirmware3F"]].
796 When downloading the images, choose the required image file for download. ​
797
798
799 = 6.  Trouble Shooting =
800
801 == 6.1  AT Command input doesn't work ==
802
803
804 In the case if user can see the console output but can't type input to the device. Please check if you already include the (% style="color:green" %)**ENTER**(%%) while sending out the command. Some serial tool doesn't send (% style="color:green" %)**ENTER**(%%) while press the send key, user need to add ENTER in their string.
805
806 (((
807
808 )))
809
810 = 7.  Order Info =
811
812
813 Part Number **:** (% style="color:blue" %)**LMDS200-XX**
814
815
816 (% style="color:blue" %)**XX**(%%)**: **The default frequency band
817
818 * (% style="color:red" %)**AS923 **(%%)**:** LoRaWAN AS923 band
819 * (% style="color:red" %)**AU915 **(%%)**:** LoRaWAN AU915 band
820 * (% style="color:red" %)**EU433 **(%%)**:** LoRaWAN EU433 band
821 * (% style="color:red" %)**EU868 **(%%)**:** LoRaWAN EU868 band
822 * (% style="color:red" %)**KR920 **(%%)**:** LoRaWAN KR920 band
823 * (% style="color:red" %)**US915 **(%%)**:** LoRaWAN US915 band
824 * (% style="color:red" %)**IN865 **(%%)**:**  LoRaWAN IN865 band
825 * (% style="color:red" %)**CN470 **(%%)**:** LoRaWAN CN470 band
826
827
828 = 8. ​ Packing Info =
829
830
831 (((
832 **Package Includes**:
833 )))
834
835 (((
836 LMDS200 LoRaWAN Microwave Radar Distance Sensor x 1
837
838
839 )))
840
841 = 9.  ​Support =
842
843
844 * 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.
845 * 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:http://../../../../../../D:%5C%E5%B8%82%E5%9C%BA%E8%B5%84%E6%96%99%5C%E8%AF%B4%E6%98%8E%E4%B9%A6%5CLoRa%5CLT%E7%B3%BB%E5%88%97%5Csupport@dragino.com]].
846
847

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