Last modified by Xiaoling on 2025/04/27 16:45
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2 [[image:image-20220615144725-2.jpeg]]
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9 **Table of Contents:**
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11 {{toc/}}
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18
19 = 1.  Introduction =
20
21 == 1.1 ​ What is LMDS200 Microwave Radar DistanceSensor ==
22
23
24 (((
25 The Dragino LMDS200 is a (% style="color:#4472c4" %)**LoRaWAN Microwave Radar distance sensor**(%%). It uses (% style="color:#4472c4" %)**24Ghz Microwave**(%%) to detect the distance between sensor and different objects. Compare vs ultrasonic or Lidar measurement method, Microwave Radar is (% style="color:#4472c4" %)**more reliable for condensation / dusty environment**(%%). It can sense correct distance even there is water or thick dust on top of the sensor.
26 )))
27
28 (((
29 The LMDS200 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.
30 )))
31
32 (((
33 LMDS200 can (% style="color:#4472c4" %)**measure two distances**(%%): the closest object and next object behind the closest one.
34 )))
35
36 (((
37 LMDS200 supports (% style="color:#4472c4" %)**Alarm Feature**(%%), user can set the LMDS200 to uplink data in a short interval when the distance is out of configured range.
38 )))
39
40 (((
41 The LoRa wireless technology used in LMDS200 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.
42 )))
43
44 (((
45 LMDS200 is powered by 8500mAh Li-SOCI2 battery, it is designed for long term use up to 5 years.
46 )))
47
48 (((
49 Each LMDS200 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.
50 )))
51
52 (((
53 *Battery life depends on how often to send data, please see [[battery analyzer>>||anchor="H4.Battery26PowerConsumption"]].
54 )))
55
56
57
58 [[image:1655277036890-950.png]]
59
60
61 == ​1.2  Features ==
62
63
64 * LoRaWAN 1.0.3 Class A
65 * Ultra-low power consumption
66 * Microwave Radar for distance detection
67 * Short uplink interval for Distance Alarm
68 * Monitor Battery Level
69 * Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915/IN865
70 * AT Commands to change parameters
71 * Uplink on periodically
72 * Downlink to change configure
73 * 8500mAh Battery for long term use
74 * Wall Mountable
75 * Outdoor Use
76
77 == 1.3  Radar probe specification ==
78
79
80 * Measuring Method: FMCW
81 * Frequency: 24.000 ~~ 24.500 GHz
82 * Measurement output power: 6dBm
83 * Measure range: 0.5 ~~ 20m
84 * Accuracy: ±0.1m
85 * Resolution: 0.01m
86 * Horizontal Angel: 78°
87 * Vertical Angel: 23°
88
89 == 1.4  Storage & Operation Temperature ==
90
91
92 -20°C to +85°C
93
94
95 == 1.5 ​ Applications ==
96
97
98 * Horizontal distance measurement
99 * Liquid level measurement
100 * Parking management system
101 * Object proximity and presence detection
102 * Intelligent trash can management system
103 * Robot obstacle avoidance
104 * Automatic control
105 * Sewer
106 * Bottom water level monitoring
107
108 == 1.6  Installation ==
109
110
111 Sensor measure direction and angle is as below. When install the sensor, please make sure the sensor direct to object.
112
113
114 [[image:image-20220615152454-3.png]]
115
116
117 [[image:image-20220615152454-4.png||height="398" width="731"]]
118
119 (% style="display:none" %) (%%)
120
121 == 1.7  Pin mapping and power on ==
122
123
124 [[image:1655257026882-201.png]]
125
126 (% style="display:none" %) (%%)
127
128 = 2.  Operation Mode =
129
130 == 2.1  How it works ==
131
132
133 (((
134 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.
135 )))
136
137
138 == 2.2  ​Example to use for LoRaWAN network ==
139
140
141 (((
142 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 [[DLOS8>>https://www.dragino.com/products/lora-lorawan-gateway/item/160-dlos8.html]] as a LoRaWAN gateway in this example.
143 )))
144
145 (((
146 [[image:1655278047781-517.png]]
147
148 * 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.
149 )))
150
151 (((
152 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:
153 )))
154
155 (((
156 (((
157
158 )))
159
160 (((
161 (% style="color:blue" %)**Step 1**(%%): Create a device in TTN with the OTAA keys from LMDS200.
162 )))
163 )))
164
165 (((
166 (((
167 Each LMDS200 is shipped with a sticker with the default device keys, user can find this sticker in the box. it looks like below.
168
169 [[image:image-20230426085714-1.png||height="253" width="545"]]
170
171
172 )))
173 )))
174
175 You can enter this key in the LoRaWAN Server portal. Below is TTN screen shot:
176
177 **Create the application.**
178
179 [[image:https://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/SAC01L_LoRaWAN_Temperature%26Humidity_Sensor_User_Manual/WebHome/image-20250423093843-1.png?width=756&height=264&rev=1.1||alt="image-20250423093843-1.png"]]
180
181 [[image:https://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LTC2-LB--LoRaWAN_Temperature_Transmitter_User_Manual/WebHome/image-20240907111305-2.png?width=1000&height=572&rev=1.1||alt="image-20240907111305-2.png"]]
182
183
184 **Add devices to the created Application.**
185
186 [[image:https://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LTC2-LB--LoRaWAN_Temperature_Transmitter_User_Manual/WebHome/image-20240907111659-3.png?width=977&height=185&rev=1.1||alt="image-20240907111659-3.png"]]
187
188 [[image:https://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LTC2-LB--LoRaWAN_Temperature_Transmitter_User_Manual/WebHome/image-20240907111820-5.png?width=975&height=377&rev=1.1||alt="image-20240907111820-5.png"]]
189
190
191 **Enter end device specifics manually.**
192
193 [[image:https://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LTC2-LB--LoRaWAN_Temperature_Transmitter_User_Manual/WebHome/image-20240907112136-6.png?width=697&height=687&rev=1.1||alt="image-20240907112136-6.png"]]
194
195
196 **Add DevEUI and AppKey. Customize a platform ID for the device.**
197
198 [[image:https://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LTC2-LB--LoRaWAN_Temperature_Transmitter_User_Manual/WebHome/image-20240907112427-7.png?rev=1.1||alt="image-20240907112427-7.png"]]
199
200
201 (% style="color:blue" %)**Step 2**(%%):  Add decoder.
202
203 In TTN, user can add a custom payload so it shows friendly reading.
204
205 Click this link to get the decoder: [[https:~~/~~/github.com/dragino/dragino-end-node-decoder/tree/main/>>url:https://github.com/dragino/dragino-end-node-decoder/tree/main/]]
206
207 Below is TTN screen shot:
208
209 [[image:https://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LDS25-LBLDS25-LS--LoRaWAN_LiDAR_Distance_Auto-Clean_Sensor_User_Manual/WebHome/image-20241009140556-1.png?width=1184&height=488&rev=1.1||alt="image-20241009140556-1.png" height="488" width="1184"]]
210
211 [[image:https://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LDS25-LBLDS25-LS--LoRaWAN_LiDAR_Distance_Auto-Clean_Sensor_User_Manual/WebHome/image-20241009140603-2.png?width=1168&height=562&rev=1.1||alt="image-20241009140603-2.png" height="562" width="1168"]]
212
213
214 (% style="color:blue" %)**Step 3**(%%):  Power on LMDS200
215
216 Put a Jumper on JP2 to power on the device. ( The Switch must be in FLASH position).
217
218 [[image:1655278589727-228.png]]
219
220 (((
221 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.
222 )))
223
224
225 == 2.3  ​Uplink Payload ==
226
227
228 Uplink payloads have two types:
229
230 * Distance Value: Use FPORT=2
231 * Other control commands: Use other FPORT fields.
232
233 The application server should parse the correct value based on FPORT settings.
234
235 (((
236 (((
237 (((
238
239 )))
240 )))
241 )))
242
243 === 2.3.1  Device Status, FPORT~=5 ===
244
245
246 (((
247 Include device configure status. Once LMDS200 Joined the network, it will uplink this message to the server.
248 )))
249
250 (((
251 Users can also use the downlink command (0x26 01) to ask LMDS200 to resend Device Status.
252 )))
253
254 (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:490px" %)
255 |=(% colspan="7" style="background-color:#4F81BD;color:white" %)Device Status (FPORT=5)
256 |(% style="width:60px" %)**Size(bytes)**|(% style="width:80px" %)**1**|(% style="width:140px" %)**2**|(% style="width:140px" %)**1**|(% style="width:70px" %)**1**|(% style="width:70px" %)**2**
257 |(% style="width:94px" %)Value|(% style="width:68px" %)Sensor Model|(% style="width:80px" %)Firmware Version|(% style="width:86px" %)Frequency Band|(% style="width:61px" %)Sub-band|(% style="width:61px" %)BAT
258
259 [[image:image-20220615154022-1.png]](% style="display:none" %)
260
261
262 * (% style="color:#037691" %)**Sensor Model**(%%)**:** For LMDS200, this value is 0x0C
263
264 * (% style="color:#037691" %)**Firmware Version**(%%)**:** 0x0100, Means: v1.0.0 version
265
266 * (% style="color:#037691" %)**Frequency Band**(%%)**:**
267
268 0x01: EU868
269
270 0x02: US915
271
272 0x03: IN865
273
274 0x04: AU915
275
276 0x05: KZ865
277
278 0x06: RU864
279
280 0x07: AS923
281
282 0x08: AS923-1
283
284 0x09: AS923-2
285
286 0x0a: AS923-3
287
288 0x0b: CN470
289
290 0x0c: EU433
291
292 0x0d: KR920
293
294 0x0e: MA869
295
296
297 * (% style="color:#037691" %)**Sub-Band**(%%)**:**
298 ** AU915 and US915:value 0x00 ~~ 0x08
299 ** CN470: value 0x0B ~~ 0x0C
300 ** Other Bands: Always 0x00
301
302 * (% style="color:#037691" %)**Battery Info:**
303
304 Check the battery voltage.
305
306 Ex1: 0x0B45 = 2885mV
307
308 Ex2: 0x0B49 = 2889mV
309
310
311 === 2.3.2  Sensor Configuration, FPORT~=4 ===
312
313
314 (((
315 LMDS200 will only send this command after getting the downlink command (0x26 02) from the server.
316
317 (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:413px" %)
318 |=(% colspan="5" style="width: 413px;background-color:#4F81BD;color:white" %)**Sensor Configuration FPORT=4**
319 |**Size(bytes)**|(% style="width:84px" %)**3**|(% style="width:73px" %)**1**|(% style="width:74px" %)**4**|(% style="width:76px" %)**1**
320 |Value|(% style="width:84px" %)(((
321 [[TDC (unit:sec)>>||anchor="H3.1A0SetTransmitIntervalTime280x0129"]]
322 )))|(% style="width:73px" %)(((
323 [[ATDC (unit:min)>>||anchor="H3.2SetAlarmTransmitIntervalTime280x0D29"]]
324 )))|(% style="width:74px" %)[[Alarm Settings>>||anchor="H3.3SetAlarmDistance280xA229"]]|(% style="width:76px" %)[[Interrupt Settings>>||anchor="H3.5A0SetInterruptMode280x0629"]]
325 )))
326
327 [[image:1655279779620-413.png]]
328
329
330 === 2.3.3  Distance, Uplink FPORT~=2 ===
331
332
333 LMDS200 will send this uplink **after** Device Status once join the LoRaWAN network successfully. And LMDS200 will:
334
335 1. periodically send this uplink every 1 hour (TDC time), this interval [[can be changed>>||anchor="H3.1A0SetTransmitIntervalTime280x0129"]].
336 1. periodically send this uplink every 1 minute in Alarm Mode.
337 1. send this uplink while there is [[interrupt event>>||anchor="H3.5A0SetInterruptMode280x0629"]].
338
339 Uplink Payload totals 11 bytes.
340
341 (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:370px" %)
342 |=(% colspan="5" style="width: 370px;background-color:#4F81BD;color:white" %)**Distance Value, FPORT=2**
343 |(% style="width:72px" %)**Size(bytes)**|(% style="width:43px" %)**2**|(% style="width:76px" %)**2**|(% style="width:76px" %)**2**|(% style="width:75px" %)**1**
344 |(% 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"]]
345
346 (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:467px" %)
347 |=(% colspan="4" style="width: 467px; background-color:#4F81BD;color:white;" %)**Status & Alarm field**
348 |(% style="width:60px" %)**Size(bit)**|(% style="width:76px" %)**6**|(% style="width:138px" %)**1**|(% style="width:173px" %)**1**
349 |(% style="width:73px" %)Value|(% style="width:76px" %)DALARM Counter|(% style="width:138px" %)(((
350 Distance Alarm
351 0: Normal Value 1: Distance Alarm
352 )))|(% style="width:173px" %)(((
353 Interrupt Alarm
354 0: No Alarm 1: external Interrupt Alarm
355 )))
356
357 [[image:image-20220615160828-3.png]]
358
359
360 (((
361 (% style="color:blue" %)** Object1 Distance:**
362 )))
363
364 (((
365 Distance between sensor probe to the first object. (unit: cm)
366 )))
367
368 (((
369 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:blue" %)** 0073(H) = 115 (D) = 115 cm.**
370 )))
371
372 (((
373 (% style="color:red" %)**Notice: There are two special values for object 1 distance:**
374 )))
375
376 * (((
377 **0x0001**: Probe not detected
378 )))
379 * (((
380 **0x0002**: Reading Invalid (exceed the valid range of the probe)
381 )))
382
383 (((
384
385
386 (% style="color:blue" %)**Object2 Distance:**
387 )))
388
389 (((
390 Distance between sensor probe to the second object. (unit: cm)
391 )))
392
393 (((
394 DALARM Counter : Alarm Counter.
395 )))
396
397
398 [[image:image-20220615160828-4.png]]
399
400
401 === 2.3.4  Decoder in TTN V3 ===
402
403
404 [[image:1655261164557-670.png]]
405
406 (((
407 Please check the decoder from this link: [[https:~~/~~/github.com/dragino/dragino-end-node-decoder>>https://github.com/dragino/dragino-end-node-decoder]]
408
409
410 )))
411
412 == 2.4  ​Show data on Datacake ==
413
414
415 (((
416 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:
417 )))
418
419 (((
420 (% style="color:blue" %)**Step 1**(%%)**: **Link TTNv3 to [[DATACAKE>>url:https://datacake.co/]]
421 )))
422
423 (((
424 (% style="color:blue" %)**Step 2**(%%)**: **Configure LMDS200 in Datacake
425 )))
426
427
428 [[image:image-20220615163646-6.png]]
429
430
431 [[image:image-20220615163646-7.png]]
432
433
434 [[image:image-20220615163646-8.png]]
435
436
437 [[image:image-20220615163646-9.png||height="392" width="1211"]]
438
439
440 [[image:image-20220615163646-10.png]]
441
442 (% style="display:none" %) (%%)
443
444 [[image:image-20220615163646-11.png||height="434" width="1206"]](% style="display:none" %)
445
446
447 [[image:image-20220615163646-12.png||height="357" width="1202"]](% style="display:none" %)
448
449 (% style="display:none" %) (%%)
450
451 [[image:image-20220615163646-13.png]](% style="display:none" %)
452
453
454 [[image:image-20220615163646-14.png]]
455
456
457 [[image:image-20220615163646-15.png]](% style="display:none" %)
458
459
460 = 3.  Configure LMDS200 via AT Command or LoRaWAN Downlink =
461
462
463 (((
464 Use can configure LMDS200 via AT Command or LoRaWAN Downlink.
465 )))
466
467 (((
468 * AT Command Connection: See [[FAQ>>||anchor="H5.A0FAQ"]].
469 * LoRaWAN Downlink instruction for different platforms: [[IoT LoRaWAN Server>>doc:Main.WebHome]]
470 )))
471
472 (((
473
474
475 There are two kinds of commands to configure LMDS200, they are:
476 )))
477
478 * (((
479 (% style="color:#4f81bd" %)**General Commands**.
480 )))
481
482 (((
483 These commands are to configure:
484 )))
485
486 * (((
487 General system settings like: uplink interval.
488 )))
489
490 * (((
491 LoRaWAN protocol & radio related command.
492 )))
493
494 (((
495 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]]
496 )))
497
498 * (((
499 (% style="color:#4f81bd" %)**Commands special design for LMDS200**
500 )))
501
502 (((
503 These commands only valid for LMDS200, as below:
504 )))
505
506
507 == 3.1  Set Transmit Interval Time(0x01) ==
508
509
510 Feature: Change LoRaWAN End Node Transmit Interval.
511
512 (% style="color:#037691" %)**AT Command: AT+TDC**
513
514 (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
515 |=(% style="width: 156px;background-color:#4F81BD;color:white" %)**Command Example**|=(% style="width: 137px;background-color:#4F81BD;color:white" %)**Function**|=(% style="background-color:#4F81BD;color:white" %)**Response**
516 |(% style="width:156px" %)AT+TDC=?|(% style="width:137px" %)Show current transmit Interval|(((
517 30000
518 OK
519 the interval is 30000ms = 30s
520 )))
521 |(% style="width:156px" %)AT+TDC=60000|(% style="width:137px" %)Set Transmit Interval|(((
522 OK
523 Set transmit interval to 60000ms = 60 seconds
524 )))
525
526 ​(% style="color:#037691" %)**Downlink Command: 0x01**
527
528 (((
529 Format: Command Code (0x01) followed by 3 bytes time value.
530
531 (((
532 If the downlink payload=0100003C, it means set the END Node's Transmit Interval to 0x00003C=60(S), while type code is 01.
533 )))
534
535 * Example 1: Downlink Payload: 0100001E  ~/~/  Set Transmit Interval (TDC) = 30 seconds
536 * Example 2: Downlink Payload: 0100003C  ~/~/  Set Transmit Interval (TDC) = 60 seconds
537 )))
538
539
540
541 == 3.2 Set Alarm Transmit Interval Time(0x0D) ==
542
543
544 Feature: Change LoRaWAN End Node Alarm Transmit Interval. Default Value: 1 minute
545
546 (% style="color:#037691" %)**AT Command: AT+ATDC**
547
548 (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
549 |=(% style="width: 156px;background-color:#4F81BD;color:white" %)**Command Example**|=(% style="width: 137px;background-color:#4F81BD;color:white" %)**Function**|=(% style="background-color:#4F81BD;color:white" %)**Response**
550 |(% style="width:156px" %)AT+ATDC=?|(% style="width:139px" %)Show current alarm transmit Interval|(% style="width:213px" %)(((
551 1
552 OK
553 the interval is 1 minute
554 )))
555 |(% style="width:156px" %)AT+ATDC=1|(% style="width:139px" %)Set Alarm Transmit Interval|(% style="width:213px" %)(((
556 OK
557 Set alarm transmit interval to 1 minute
558 )))
559
560 (% style="color:#037691" %)**Downlink Command: 0x0D**
561
562 Format: Command Code (0x0D) followed by 1 byte for time value.
563
564 If the downlink payload=0D02, it means set the END Node's Alarm Transmit Interval to 2 minutes, while type code is 0D.
565
566
567 == 3.3 Set Alarm Distance (0xA2) ==
568
569
570 LMDS200 supports Alarm Feature, when LMDS200 detect the distance exceed the alarm settings, LMDS200 will Enter Alarm Mode and use the [[ATDC interval>>||anchor="H3.2SetAlarmTransmitIntervalTime280x0D29"]] (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.
571
572 (% style="color:red" %)**Note: Alarm mode only valid for the Distance 1(the Closest Object)**
573
574
575 User can set Alarm Distance to enable/disable Alarm Mode.
576
577 (% style="color:#037691" %)**AT+ALARMC=AABBCCDD**
578
579 * AABB: Hex value for Alarm low threshold, CCDD: Hex value for Alarm high threshold
580 * When 0xAABB=0, and 0xCCDD≠0, Alarm trigger when higher than max
581 * When 0xAABB≠0, and 0xCCDD =0xFFFF, Alarm trigger when lower than min
582 * When 0xAABB≠0 and 0xCCDD≠0, Alarm trigger when higher than max or lower than min
583
584 **Example:**
585
586 AT+ALARMC=006400C8   ~/~/ Alarm when < 100 or higher than 200.
587
588
589 (% style="color:#037691" %)**Downlink Payload:**
590
591 0x(A2 00 01 00 00)  ~/~/ Same as AT+ALARMC=00010000
592
593
594 == 3.4 Enter/Exit Alarm Mode (0xA3) ==
595
596
597 Feature: Enter/Exit Alarm mode:
598
599 (% style="color:#037691" %)**AT Command: AT+ALARM=0(Exit Alarm Mode or AT+ALARM=1 (Enter Alarm Mode)**
600
601
602 (% style="color:#037691" %)**Downlink Command:**
603
604 0xA3 00  ~/~/ Exit Alarm Mode. 
605
606 0xA3 01  ~/~/ Enter Alarm Mode. Enter Alarm mode will use ATDC interval in the next 59 uplinks.
607
608
609 == 3.5  Set Interrupt Mode(0x06) ==
610
611
612 (((
613 Feature, Set Interrupt mode for GPIO_EXIT.
614 )))
615
616 (((
617 (% style="color:#037691" %)**AT Command: AT+INTMOD**
618 )))
619
620 (% border="1" cellspacing="3" style="background-color:#f2f2f2; width:510px" %)
621 |=(% style="width: 154px;background-color:#4F81BD;color:white" %)**Command Example**|=(% style="width: 223px; background-color: rgb(79, 129, 189); color: white;" %)**Function**|=(% style="width: 131px; background-color: rgb(79, 129, 189); color: white;" %)**Response**
622 |(% style="width:154px" %)AT+INTMOD=?|(% style="width:223px" %)Show current interrupt mode|(% style="width:131px" %)(((
623 0
624 OK
625 the mode is 0 = No interruption
626 )))
627 |(% style="width:154px" %)AT+INTMOD=2|(% style="width:223px" %)(((
628 Set the interrupt triggering mode
629 0. (Disable Interrupt),
630 ~1. (Trigger by rising and falling edge)
631 2. (Trigger by falling edge)
632 3. (Trigger by rising edge)
633 )))|(% style="width:131px" %)OK
634
635 (% style="color:#037691" %)**Downlink Command: 0x06**
636
637 (((
638 Format: Command Code (0x06) followed by 3 bytes.
639 )))
640
641 (((
642 This means that the interrupt mode of the end node is set to 0x000003=3 (rising edge trigger), and the type code is 06.
643 )))
644
645 * (((
646 (((
647 Example 1: Downlink Payload: 06000000  ~/~/ Turn off interrupt mode
648 )))
649 )))
650 * (((
651 (((
652 Example 2: Downlink Payload: 06000003  ~/~/ Set the interrupt mode to rising edge trigger
653 )))
654 )))
655
656 = 4. Battery & Power Consumption =
657
658
659 LMDS200 uses ER26500 + SPC1520 battery pack. See below link for detail information about the battery info and how to replace.
660
661 [[**Battery Info & Power Consumption Analyze**>>url:http://wiki.dragino.com/xwiki/bin/view/Main/How%20to%20calculate%20the%20battery%20life%20of%20Dragino%20sensors%3F/]] .
662
663
664 = 5.  FAQ =
665
666 == 5.1  How to use AT Command to configure LMDS200 ==
667
668
669 LMDS200 UART connection photo
670
671
672 [[image:image-20220615180555-3.png||height="541" width="863"]]
673
674
675 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.
676
677 [[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"]]
678
679
680 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:
681
682 [[image:image-20220615180555-4.png]]
683
684
685 == 5.2  How to upgrade the firmware? ==
686
687
688 (((
689 A new firmware might be available for:
690 )))
691
692 * (((
693 Support new features
694 )))
695 * (((
696 For bug fix
697 )))
698 * (((
699 Change LoRaWAN bands.
700 )))
701
702 (((
703 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]]
704 )))
705
706 (((
707 Firmware location: [[https:~~/~~/www.dragino.com/downloads/index.php?dir=LoRa_End_Node/LMDS200/Firmware/>>https://www.dropbox.com/sh/g99v0fxcltn9r1y/AABDo75A3JuPzDrPJnsXo0Y0a/LMDS200?dl=0]]
708 )))
709
710
711 == 5.3  How to change the LoRa Frequency Bands/Region ==
712
713
714 You can follow the instructions for [[how to upgrade image>>||anchor="H5.2A0Howtoupgradethefirmware3F"]].
715 When downloading the images, choose the required image file for download. ​
716
717
718 = 6.  Trouble Shooting =
719
720 == 6.1  AT Command input doesn't work ==
721
722
723 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.
724
725
726 = 7.  Order Info =
727
728
729 Part Number **:** (% style="color:blue" %)**LMDS200-XX**
730
731 (% style="color:blue" %)**XX**(%%)**: **The default frequency band
732
733 * (% style="color:red" %)**AS923 **(%%)**:** LoRaWAN AS923 band
734 * (% style="color:red" %)**AU915 **(%%)**:** LoRaWAN AU915 band
735 * (% style="color:red" %)**EU433 **(%%)**:** LoRaWAN EU433 band
736 * (% style="color:red" %)**EU868 **(%%)**:** LoRaWAN EU868 band
737 * (% style="color:red" %)**KR920 **(%%)**:** LoRaWAN KR920 band
738 * (% style="color:red" %)**US915 **(%%)**:** LoRaWAN US915 band
739 * (% style="color:red" %)**IN865 **(%%)**:**  LoRaWAN IN865 band
740 * (% style="color:red" %)**CN470 **(%%)**:** LoRaWAN CN470 band
741
742 = 8. ​ Packing Info =
743
744
745 (((
746 **Package Includes**:
747 )))
748
749 (((
750 LMDS200 LoRaWAN Microwave Radar Distance Sensor x 1
751 )))
752
753
754 = 9.  ​Support =
755
756
757 * 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.
758
759 * 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]].
760
761

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