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Version 109.15 by Xiaoling on 2023/11/10 08:52
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1 (% style="text-align:center" %)
2 [[image:image-20230614153353-1.png]]
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8
9
10 **Table of Contents：**
11
12 {{toc/}}
13
14
15
16
17
18
19 = 1. Introduction =
20
21 == 1.1 What is LoRaWAN LiDAR ToF Distance Sensor ==
22
23
24 The Dragino LDS12-LB is a (% style="color:blue" %)**LoRaWAN LiDAR ToF (Time of Flight) Distance Sensor**(%%) for Internet of Things solution. It is capable to measure the distance to an object as close as 10 centimeters (+/- 5cm up to 6m) and as far as 12 meters (+/-1% starting at 6m)!. The LiDAR probe uses laser induction technology for distance measurement.
25
26 The LDS12-LB 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.
27
28 It detects the distance between the measured object and the sensor, and uploads the value via wireless to LoRaWAN IoT Server.
29
30 The LoRa wireless technology used in LDS12-LB 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.
31
32 LDS12-LB (% style="color:blue" %)**supports BLE configure**(%%) and (% style="color:blue" %)**wireless OTA update**(%%) which make user easy to use.
33
34 LDS12-LB is powered by (% style="color:blue" %)**8500mAh Li-SOCI2 battery**(%%), it is designed for long term use up to 5 years.
35
36 Each LDS12-LB 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.
37
38 [[image:image-20230615152941-1.png||height="459" width="800"]]
39
40
41 == 1.2 ​Features ==
42
43
44 * LoRaWAN 1.0.3 Class A
45 * Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915/IN865
46 * Ultra-low power consumption
47 * Laser technology for distance detection
48 * Measure Distance: 0.1m~~12m
49 * Accuracy :  ±5cm@(0.1-5m), ±1%@(5m-12m)
50 * Monitor Battery Level
51 * Support Bluetooth v5.1 and LoRaWAN remote configure
52 * Support wireless OTA update firmware
53 * AT Commands to change parameters
54 * Downlink to change configure
55 * 8500mAh Battery for long term use
56
57 == 1.3 Specification ==
58
59
60 (% style="color:#037691" %)**Common DC Characteristics:**
61
62 * Supply Voltage: built in 8500mAh Li-SOCI2 battery , 2.5v ~~ 3.6v
63 * Operating Temperature: -40 ~~ 85°C
64
65 (% style="color:#037691" %)**Probe Specification:**
66
67 * Storage temperature：-20℃~~75℃
68 * Operating temperature : -20℃~~60℃
69 * Measure Distance:
70 ** 0.1m ~~ 12m @ 90% Reflectivity
71 ** 0.1m ~~ 4m @ 10% Reflectivity
72 * Accuracy : ±5cm@(0.1-5m), ±1%@(5m-12m)
73 * Distance resolution : 1cm
74 * Ambient light immunity : 70klux
75 * Enclosure rating : IP65
76 * Light source : LED
77 * Central wavelength : 850nm
78 * FOV : 3.6°
79 * Material of enclosure : ABS+PC
80 * Wire length : 25cm
81
82 (% style="color:#037691" %)**LoRa Spec:**
83
84 * Frequency Range,  Band 1 (HF): 862 ~~ 1020 Mhz
85 * Max +22 dBm constant RF output vs.
86 * RX sensitivity: down to -139 dBm.
87 * Excellent blocking immunity
88
89 (% style="color:#037691" %)**Battery:**
90
91 * Li/SOCI2 un-chargeable battery
92 * Capacity: 8500mAh
93 * Self-Discharge: <1% / Year @ 25°C
94 * Max continuously current: 130mA
95 * Max boost current: 2A, 1 second
96
97 (% style="color:#037691" %)**Power Consumption**
98
99 * Sleep Mode: 5uA @ 3.3v
100 * LoRa Transmit Mode: 125mA @ 20dBm, 82mA @ 14dBm
101
102 == 1.4 Applications ==
103
104
105 * Horizontal distance measurement
106 * Parking management system
107 * Object proximity and presence detection
108 * Intelligent trash can management system
109 * Robot obstacle avoidance
110 * Automatic control
111 * Sewer
112
113 (% style="display:none" %)
114
115 == 1.5 Sleep mode and working mode ==
116
117
118 (% style="color:blue" %)**Deep Sleep Mode: **(%%)Sensor doesn't have any LoRaWAN activate. This mode is used for storage and shipping to save battery life.
119
120 (% style="color:blue" %)**Working Mode:** (%%)In this mode, Sensor will work as LoRaWAN Sensor to Join LoRaWAN network and send out sensor data to server. Between each sampling/tx/rx periodically, sensor will be in IDLE mode), in IDLE mode, sensor has the same power consumption as Deep Sleep mode.
121
122
123 == 1.6 Button & LEDs ==
124
125
126 [[image:Main.User Manual for LoRaWAN End Nodes.D20-LBD22-LBD23-LB_LoRaWAN_Temperature_Sensor_User_Manual.WebHome@1675071855856-879.png]]
127
128
129 (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
130 |=(% style="width: 167px;background-color:#4F81BD;color:white" %)**Behavior on ACT**|=(% style="width: 117px;background-color:#4F81BD;color:white" %)**Function**|=(% style="width: 225px;background-color:#4F81BD;color:white" %)**Action**
131 |(% style="width:167px" %)Pressing ACT between 1s < time < 3s|(% style="width:117px" %)Send an uplink|(% style="width:225px" %)(((
132 If sensor is already Joined to LoRaWAN network, sensor will send an uplink packet, (% style="color:blue" %)**blue led** (%%)will blink once.
133 Meanwhile, BLE module will be active and user can connect via BLE to configure device.
134 )))
135 |(% style="width:167px" %)Pressing ACT for more than 3s|(% style="width:117px" %)Active Device|(% style="width:225px" %)(((
136 (% style="color:green" %)**Green led**(%%) will fast blink 5 times, device will enter (% style="color:#037691" %)**OTA mode**(%%) for 3 seconds. And then start to JOIN LoRaWAN network.
137 (% style="color:green" %)**Green led**(%%) will solidly turn on for 5 seconds after joined in network.
138 Once sensor is active, BLE module will be active and user can connect via BLE to configure device, no matter if device join or not join LoRaWAN network.
139 )))
140 |(% style="width:167px" %)Fast press ACT 5 times.|(% style="width:117px" %)Deactivate Device|(% style="width:225px" %)(% style="color:red" %)**Red led**(%%) will solid on for 5 seconds. Means device is in Deep Sleep Mode.
141
142 == 1.7 BLE connection ==
143
144
145 LDS12-LB support BLE remote configure.
146
147 BLE can be used to configure the parameter of sensor or see the console output from sensor. BLE will be only activate on below case:
148
149 * Press button to send an uplink
150 * Press button to active device.
151 * Device Power on or reset.
152
153 If there is no activity connection on BLE in 60 seconds, sensor will shut down BLE module to enter low power mode.
154
155
156 == 1.8 Pin Definitions ==
157
158
159 [[image:image-20230805144259-1.png||height="413" width="741"]]
160
161 == 1.9 Mechanical ==
162
163
164 [[image:Main.User Manual for LoRaWAN End Nodes.D20-LBD22-LBD23-LB_LoRaWAN_Temperature_Sensor_User_Manual.WebHome@1675143884058-338.png]]
165
166
167 [[image:Main.User Manual for LoRaWAN End Nodes.D20-LBD22-LBD23-LB_LoRaWAN_Temperature_Sensor_User_Manual.WebHome@1675143899218-599.png]]
168
169
170 [[image:Main.User Manual for LoRaWAN End Nodes.D20-LBD22-LBD23-LB_LoRaWAN_Temperature_Sensor_User_Manual.WebHome@1675143909447-639.png]]
171
172
173 (% style="color:blue" %)**Probe Mechanical:**
174
175
176 [[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LLDS12-LoRaWAN%20LiDAR%20ToF%20Distance%20Sensor%20User%20Manual/WebHome/1654827224480-952.png?rev=1.1||alt="1654827224480-952.png"]]
177
178
179 = 2. Configure LDS12-LB to connect to LoRaWAN network =
180
181 == 2.1 How it works ==
182
183
184 The LDS12-LB is configured as (% style="color:#037691" %)**LoRaWAN OTAA Class A**(%%) mode by default. It has OTAA keys to join LoRaWAN network. To connect a local LoRaWAN network, you need to input the OTAA keys in the LoRaWAN IoT server and press the button to activate the LDS12-LB. It will automatically join the network via OTAA and start to send the sensor value. The default uplink interval is 20 minutes.
185
186 (% style="display:none" %) (%%)
187
188 == 2.2 ​Quick guide to connect to LoRaWAN server (OTAA) ==
189
190
191 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 [[LPS8v2>>url:https://www.dragino.com/products/lora-lorawan-gateway/item/228-lps8v2.html]] as a LoRaWAN gateway in this example.
192
193 The LPS8v2 is already set to connected to [[TTN network >>url:https://console.cloud.thethings.network/]], so what we need to now is configure the TTN server.
194
195 [[image:image-20230615153004-2.png||height="459" width="800"]](% style="display:none" %)
196
197
198 (% style="color:blue" %)**Step 1:**(%%) Create a device in TTN with the OTAA keys from LDS12-LB.
199
200 Each LDS12-LB is shipped with a sticker with the default device EUI as below:
201
202 [[image:image-20230426084152-1.png||alt="图片-20230426084152-1.png" height="233" width="502"]]
203
204
205 You can enter this key in the LoRaWAN Server portal. Below is TTN screen shot:
206
207
208 (% style="color:blue" %)**Register the device**
209
210 [[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LSN50v2-S31-S31B%20LoRaWAN%20Temperature%20%26%20Humidity%20Sensor%20User%20Manual/WebHome/1654935135620-998.png?rev=1.1||alt="1654935135620-998.png"]]
211
212
213 (% style="color:blue" %)**Add APP EUI and DEV EUI**
214
215 [[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LSN50v2-S31-S31B%20LoRaWAN%20Temperature%20%26%20Humidity%20Sensor%20User%20Manual/WebHome/image-20220611161308-4.png?width=753&height=551&rev=1.1||alt="图片-20220611161308-4.png"]]
216
217
218 (% style="color:blue" %)**Add APP EUI in the application**
219
220
221 [[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LSN50v2-S31-S31B%20LoRaWAN%20Temperature%20%26%20Humidity%20Sensor%20User%20Manual/WebHome/image-20220611161308-5.png?width=742&height=601&rev=1.1||alt="图片-20220611161308-5.png"]]
222
223
224 (% style="color:blue" %)**Add APP KEY**
225
226 [[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LSN50v2-S31-S31B%20LoRaWAN%20Temperature%20%26%20Humidity%20Sensor%20User%20Manual/WebHome/image-20220611161308-6.png?width=744&height=485&rev=1.1||alt="图片-20220611161308-6.png"]]
227
228
229 (% style="color:blue" %)**Step 2:**(%%) Activate on LDS12-LB
230
231
232 Press the button for 5 seconds to activate the LDS12-LB.
233
234 (% style="color:green" %)**Green led**(%%) will fast blink 5 times, device will enter (% style="color:blue" %)**OTA mode**(%%) for 3 seconds. And then start to JOIN LoRaWAN network. (% style="color:green" %)**Green led**(%%) will solidly turn on for 5 seconds after joined in network.
235
236 After join success, it will start to upload messages to TTN and you can see the messages in the panel.
237
238
239 == 2.3 ​Uplink Payload ==
240
241 === 2.3.1 Device Status, FPORT~=5 ===
242
243
244 Users can use the downlink command(**0x26 01**) to ask LDS12-LB to send device configure detail, include device configure status. LDS12-LB will uplink a payload via FPort=5 to server.
245
246 The Payload format is as below.
247
248 (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
249 |=(% style="width: 60px;background-color:#4F81BD;color:white" %)(((
250 **Size(bytes)**
251 )))|=(% style="width: 100px; background-color: #4F81BD;color:white;" %)**1**|=(% style="width: 100px; background-color: #4F81BD;color:white;" %)**2**|=(% style="background-color: #4F81BD;color:white; width: 100px;" %)**1**|=(% style="background-color: #4F81BD;color:white; width: 100px;" %)**1**|=(% style="background-color: #4F81BD;color:white; width: 50px;" %)**2**
252 |(% style="width:62.5px" %)Value|(% style="width:110px" %)Sensor Model|(% style="width:48px" %)Firmware Version|(% style="width:94px" %)Frequency Band|(% style="width:91px" %)Sub-band|(% style="width:60px" %)BAT
253
254 Example parse in TTNv3
255
256 [[image:image-20230805103904-1.png||height="131" width="711"]]
257
258 (% style="color:blue" %)**Sensor Model**(%%): For LDS12-LB, this value is 0x24
259
260 (% style="color:blue" %)**Firmware Version**(%%): 0x0100, Means: v1.0.0 version
261
262 (% style="color:blue" %)**Frequency Band**:
263
264 0x01: EU868
265
266 0x02: US915
267
268 0x03: IN865
269
270 0x04: AU915
271
272 0x05: KZ865
273
274 0x06: RU864
275
276 0x07: AS923
277
278 0x08: AS923-1
279
280 0x09: AS923-2
281
282 0x0a: AS923-3
283
284 0x0b: CN470
285
286 0x0c: EU433
287
288 0x0d: KR920
289
290 0x0e: MA869
291
292 (% style="color:blue" %)**Sub-Band**:
293
294 AU915 and US915:value 0x00 ~~ 0x08
295
296 CN470: value 0x0B ~~ 0x0C
297
298 Other Bands: Always 0x00
299
300 (% style="color:blue" %)**Battery Info**:
301
302 Check the battery voltage.
303
304 Ex1: 0x0B45 = 2885mV
305
306 Ex2: 0x0B49 = 2889mV
307
308
309 === 2.3.2 Uplink Payload, FPORT~=2 ===
310
311
312 (((
313 LDS12-LB will send this uplink **after** Device Status once join the LoRaWAN network successfully. And LDS12-LB will:
314
315 periodically send this uplink every 20 minutes, this interval [[can be changed>>||anchor="H3.3.1SetTransmitIntervalTime"]].
316
317 Uplink Payload totals 11 bytes.
318 )))
319
320 (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
321 |=(% style="width: 60px;background-color:#4F81BD;color:white" %)(((
322 **Size(bytes)**
323 )))|=(% style="width: 30px;background-color:#4F81BD;color:white" %)**2**|=(% style="width: 80px;background-color:#4F81BD;color:white" %)**2**|=(% style="width: 50px;background-color:#4F81BD;color:white" %)**2**|=(% style="width: 70px;background-color:#4F81BD;color:white" %)**2**|=(% style="background-color:#4F81BD;color:white; width: 80px;" %)**1**|=(% style="background-color: #4F81BD;color:white; width: 70px;" %)**1**|=(% style="background-color: #4F81BD;color:white; width: 70px;" %)**1**
324 |(% style="width:62.5px" %)Value|(% style="width:62.5px" %)[[BAT>>||anchor="HBatteryInfo"]]|(% style="width:62.5px" %)(((
325 [[Temperature DS18B20>>||anchor="HDS18B20Temperaturesensor"]]
326 )))|[[Distance>>||anchor="HDistance"]]|[[Distance signal strength>>||anchor="HDistancesignalstrength"]]|(% style="width:122px" %)(((
327 [[Interrupt flag & Interrupt_level>>||anchor="HInterruptPin26A0InterruptLevel"]]
328 )))|(% style="width:54px" %)[[LiDAR temp>>||anchor="HLiDARtemp"]]|(% style="width:96px" %)(((
329 [[Message Type>>||anchor="HMessageType"]]
330 )))
331
332 [[image:image-20230805104104-2.png||height="136" width="754"]]
333
334
335 ==== (% style="color:blue" %)**Battery Info**(%%) ====
336
337
338 Check the battery voltage for LDS12-LB.
339
340 Ex1: 0x0B45 = 2885mV
341
342 Ex2: 0x0B49 = 2889mV
343
344
345 ==== (% style="color:blue" %)**DS18B20 Temperature sensor**(%%) ====
346
347
348 This is optional, user can connect external DS18B20 sensor to the +3.3v, 1-wire and GND pin . and this field will report temperature.
349
350
351 **Example**:
352
353 If payload is: 0105H:  (0105 & FC00 == 0), temp = 0105H /10 = 26.1 degree
354
355 If payload is: FF3FH :  (FF3F & FC00 == 1) , temp = (FF3FH - 65536)/10 = -19.3 degrees.
356
357
358 ==== (% style="color:blue" %)**Distance**(%%) ====
359
360
361 Represents the distance value of the measurement output, the default unit is cm, and the value range parsed as a decimal number is 0-1200. In actual use, when the signal strength value Strength.
362
363
364 **Example**:
365
366 If the data you get from the register is 0x0B 0xEA, the distance between the sensor and the measured object is 0BEA(H) = 3050 (D)/10 = 305cm.
367
368
369 ==== (% style="color:blue" %)**Distance signal strength**(%%) ====
370
371
372 Refers to the signal strength, the default output value will be between 0-65535. When the distance measurement gear is fixed, the farther the distance measurement is, the lower the signal strength; the lower the target reflectivity, the lower the signal strength. When Strength is greater than 100 and not equal to 65535, the measured value of Dist is considered credible.
373
374
375 **Example**:
376
377 If payload is: 01D7(H)=471(D), distance signal strength=471, 471>100,471≠65535, the measured value of Dist is considered credible.
378
379 Customers can judge whether they need to adjust the environment based on the signal strength.
380
381
382 **1) When the sensor detects valid data:**
383
384 [[image:image-20230805155335-1.png||height="145" width="724"]]
385
386
387 **2) When the sensor detects invalid data:**
388
389 [[image:image-20230805155428-2.png||height="139" width="726"]]
390
391
392 **3) When the sensor is not connected:**
393
394 [[image:image-20230805155515-3.png||height="143" width="725"]]
395
396
397 ==== (% style="color:blue" %)**Interrupt Pin & Interrupt Level**(%%) ====
398
399
400 This data field shows if this packet is generated by interrupt or not. [[Click here>>||anchor="H3.3.2SetInterruptMode"]] for the hardware and software set up.
401
402 Note: The Internet Pin is a separate pin in the screw terminal. See [[pin mapping>>||anchor="H1.8PinDefinitions"]] of GPIO_EXTI .
403
404 **Example:**
405
406 If byte[0]&0x01=0x00 : Normal uplink packet.
407
408 If byte[0]&0x01=0x01 : Interrupt Uplink Packet.
409
410
411 ==== (% style="color:blue" %)**LiDAR temp**(%%) ====
412
413
414 Characterize the internal temperature value of the sensor.
415
416 **Example: **
417 If payload is: 1C(H) <<24>>24=28(D),LiDAR temp=28℃.
418 If payload is: F2(H) <<24>>24=-14(D),LiDAR temp=-14℃.
419
420
421 ==== (% style="color:blue" %)**Message Type**(%%) ====
422
423
424 (((
425 For a normal uplink payload, the message type is always 0x01.
426 )))
427
428 (((
429 Valid Message Type:
430 )))
431
432 (% border="1" cellspacing="5" style="background-color:#f2f2f2; width:499px" %)
433 |=(% style="width: 161px;background-color:#4F81BD;color:white" %)**Message Type Code**|=(% style="width: 164px;background-color:#4F81BD;color:white" %)**Description**|=(% style="width: 174px;background-color:#4F81BD;color:white" %)**Payload**
434 |(% style="width:160px" %)0x01|(% style="width:163px" %)Normal Uplink|(% style="width:173px" %)Normal Uplink Payload
435 |(% style="width:160px" %)0x02|(% style="width:163px" %)Reply configures info|(% style="width:173px" %)Configure Info Payload
436
437 [[image:image-20230805150315-4.png||height="233" width="723"]]
438
439
440 === 2.3.3 Historical measuring distance, FPORT~=3 ===
441
442
443 LDS12-LB stores sensor values and users can retrieve these history values via the [[downlink command>>||anchor="H2.5.4Pollsensorvalue"]].
444
445 The historical payload includes one or multiplies entries and every entry has the same payload as Real-Time measuring distance.
446
447 (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
448 |=(% style="width: 60px;background-color:#4F81BD;color:white" %)(((
449 **Size(bytes)**
450 )))|=(% style="width: 80px;background-color:#4F81BD;color:white" %)1|=(% style="width: 80px;background-color:#4F81BD;color:white" %)**1**|=(% style="width: 50px;background-color:#4F81BD;color:white" %)**2**|=(% style="width: 70px;background-color:#4F81BD;color:white" %)**2**|=(% style="background-color:#4F81BD; color: white; width: 85px;" %)**1**|=(% style="background-color: #4F81BD; color: white; width: 85px;" %)4
451 |(% style="width:62.5px" %)Value|(% style="width:62.5px" %)Interrupt flag & Interrupt_level|(% style="width:62.5px" %)(((
452 Reserve(0xFF)
453 )))|Distance|Distance signal strength|(% style="width:88px" %)(((
454 LiDAR temp
455 )))|(% style="width:85px" %)Unix TimeStamp
456
457 **Interrupt flag & Interrupt level:**
458
459 (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:480px" %)
460 |=(% style="width: 60px;background-color:#4F81BD;color:white" %)(((
461 **Size(bit)**
462 )))|=(% style="width: 90px;background-color:#4F81BD;color:white" %)**bit7**|=(% style="width: 90px;background-color:#4F81BD;color:white" %)**bit6**|=(% style="width: 60px;background-color:#4F81BD;color:white" %)**[bit5:bit2]**|=(% style="width: 90px; background-color: #4F81BD; color: white;" %)**bit1**|=(% style="background-color: #4F81BD; color: white; width: 90px;" %)**bit0**
463 |(% style="width:62.5px" %)Value|(% style="width:62.5px" %)No ACK message|(% style="width:62.5px" %)Poll Message Flag|Reserve|(% style="width:91px" %)Interrupt level|(% style="width:88px" %)(((
464 Interrupt flag
465 )))
466
467 * (((
468 Each data entry is 11 bytes and has the same structure as [[Uplink Payload>>||anchor="H2.3.2UplinkPayload2CFPORT3D2"]], to save airtime and battery, LDS12-LB will send max bytes according to the current DR and Frequency bands.
469 )))
470
471 For example, in the US915 band, the max payload for different DR is:
472
473 **a) DR0:** max is 11 bytes so one entry of data
474
475 **b) DR1:** max is 53 bytes so devices will upload 4 entries of data (total 44 bytes)
476
477 **c) DR2:** total payload includes 11 entries of data
478
479 **d) DR3:** total payload includes 22 entries of data.
480
481 If LDS12-LB doesn't have any data in the polling time. It will uplink 11 bytes of 0
482
483
484 **Downlink:**
485
486 0x31 64 CC 68 0C 64 CC 69 74 05
487
488 [[image:image-20230805144936-2.png||height="113" width="746"]]
489
490 **Uplink:**
491
492 43 FF 0E 10 00 B0 1E 64 CC 68 0C 40 FF 0D DE 00 A8 1E 64 CC 68 29 40 FF 09 92 00 D3 1E 64 CC 68 65 40 FF 02 3A 02 BC 1E 64 CC 68 A1 41 FF 0E 1A 00 A4 1E 64 CC 68 C0 40 FF 0D 2A 00 B8 1E 64 CC 68 E8 40 FF 00 C8 11 6A 1E 64 CC 69 24 40 FF 0E 24 00 AD 1E 64 CC 69 6D
493
494
495 **Parsed Value:**
496
497 [DISTANCE , DISTANCE_SIGNAL_STRENGTH，LIDAR_TEMP，EXTI_STATUS , EXTI_FLAG , TIME]
498
499
500 [360,176,30,High,True,2023-08-04 02:53:00],
501
502 [355,168,30,Low,False,2023-08-04 02:53:29],
503
504 [245,211,30,Low,False,2023-08-04 02:54:29],
505
506 [57,700,30,Low,False,2023-08-04 02:55:29],
507
508 [361,164,30,Low,True,2023-08-04 02:56:00],
509
510 [337,184,30,Low,False,2023-08-04 02:56:40],
511
512 [20,4458,30,Low,False,2023-08-04 02:57:40],
513
514 [362,173,30,Low,False,2023-08-04 02:58:53],
515
516
517 **History read from serial port：**
518
519 [[image:image-20230805145056-3.png]]
520
521
522 === 2.3.4 Decode payload in The Things Network ===
523
524
525 While using TTN network, you can add the payload format to decode the payload.
526
527 [[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LLDS12-LoRaWAN%20LiDAR%20ToF%20Distance%20Sensor%20User%20Manual/WebHome/1654592762713-715.png?rev=1.1||alt="1654592762713-715.png"]]
528
529
530 (((
531 The payload decoder function for TTN is here:
532 )))
533
534 (((
535 LDS12-LB TTN Payload Decoder:  [[https:~~/~~/github.com/dragino/dragino-end-node-decoder>>https://github.com/dragino/dragino-end-node-decoder]]
536 )))
537
538
539 == 2.4 ​Show Data in DataCake IoT Server ==
540
541
542 (((
543 [[DATACAKE>>url:https://datacake.co/]] provides a human friendly interface to show the sensor data, once we have data in TTN, we can use [[DATACAKE>>url:https://datacake.co/]] to connect to TTN and see the data in DATACAKE. Below are the steps:
544 )))
545
546
547 (((
548 (% style="color:blue" %)**Step 1**(%%)**: Be sure that your device is programmed and properly connected to the network at this time.**
549 )))
550
551 (((
552 (% 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:**
553 )))
554
555
556 [[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LDDS75%20-%20LoRaWAN%20Distance%20Detection%20Sensor%20User%20Manual/WebHome/1654592790040-760.png?rev=1.1||alt="1654592790040-760.png"]]
557
558
559 [[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LDDS75%20-%20LoRaWAN%20Distance%20Detection%20Sensor%20User%20Manual/WebHome/1654592800389-571.png?rev=1.1||alt="1654592800389-571.png"]]
560
561
562 (% style="color:blue" %)**Step 3**(%%)**: Create an account or log in Datacake.**
563
564 (% style="color:blue" %)**Step 4**(%%)**: Search the LDS12-LB and add DevEUI.**
565
566 [[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LDDS75%20-%20LoRaWAN%20Distance%20Detection%20Sensor%20User%20Manual/WebHome/1654851029373-510.png?rev=1.1||alt="1654851029373-510.png"]]
567
568
569 After added, the sensor data arrive TTN V3, it will also arrive and show in Datacake.
570
571 [[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LDDS75%20-%20LoRaWAN%20Distance%20Detection%20Sensor%20User%20Manual/WebHome/image-20220610165129-11.png?width=1088&height=595&rev=1.1||alt="image-20220610165129-11.png"]]
572
573
574 == 2.5 Datalog Feature ==
575
576
577 Datalog Feature is to ensure IoT Server can get all sampling data from Sensor even if the LoRaWAN network is down. For each sampling, LDS12-LB will store the reading for future retrieving purposes.
578
579
580 === 2.5.1 Ways to get datalog via LoRaWAN ===
581
582
583 Set PNACKMD=1, LDS12-LB will wait for ACK for every uplink, when there is no LoRaWAN network,LDS12-LB will mark these records with non-ack messages and store the sensor data, and it will send all messages (10s interval) after the network recovery.
584
585 * (((
586 a) LDS12-LB will do an ACK check for data records sending to make sure every data arrive server.
587 )))
588 * (((
589 b) LDS12-LB will send data in **CONFIRMED Mode** when PNACKMD=1, but LDS12-LB won't re-transmit the packet if it doesn't get ACK, it will just mark it as a NONE-ACK message. In a future uplink if LDS12-LB gets a ACK, LDS12-LB will consider there is a network connection and resend all NONE-ACK messages.
590 )))
591
592 Below is the typical case for the auto-update datalog feature (Set PNACKMD=1)
593
594 [[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LHT65N%20LoRaWAN%20Temperature%20%26%20Humidity%20Sensor%20Manual/WebHome/image-20220703111700-2.png?width=1119&height=381&rev=1.1||alt="图片-20220703111700-2.png" height="381" width="1119"]]
595
596
597 === 2.5.2 Unix TimeStamp ===
598
599
600 LDS12-LB uses Unix TimeStamp format based on
601
602 [[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LHT65N%20LoRaWAN%20Temperature%20%26%20Humidity%20Sensor%20Manual/WebHome/image-20220523001219-11.png?width=627&height=97&rev=1.1||alt="图片-20220523001219-11.png" height="97" width="627"]]
603
604 User can get this time from link:  [[https:~~/~~/www.epochconverter.com/>>url:https://www.epochconverter.com/]] :
605
606 Below is the converter example
607
608 [[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LHT65N%20LoRaWAN%20Temperature%20%26%20Humidity%20Sensor%20Manual/WebHome/image-20220523001219-12.png?width=720&height=298&rev=1.1||alt="图片-20220523001219-12.png" height="298" width="720"]]
609
610
611 So, we can use AT+TIMESTAMP=1611889405 or downlink 3060137afd00 to set the current time 2021 – Jan ~-~- 29 Friday 03:03:25
612
613
614 === 2.5.3 Set Device Time ===
615
616
617 User need to set (% style="color:blue" %)**SYNCMOD=1**(%%) to enable sync time via MAC command.
618
619 Once LDS12-LB Joined LoRaWAN network, it will send the MAC command (DeviceTimeReq) and the server will reply with (DeviceTimeAns) to send the current time to LDS12-LB. If LDS12-LB fails to get the time from the server, LDS12-LB will use the internal time and wait for next time request (AT+SYNCTDC to set the time request period, default is 10 days).
620
621 (% style="color:red" %)**Note: LoRaWAN Server need to support LoRaWAN v1.0.3(MAC v1.0.3) or higher to support this MAC command feature, Chirpstack,TTN V3 v3 and loriot support but TTN V3 v2 doesn't support. If server doesn't support this command, it will through away uplink packet with this command, so user will lose the packet with time request for TTN V3 v2 if SYNCMOD=1.**
622
623
624 === 2.5.4 Poll sensor value ===
625
626
627 Users can poll sensor values based on timestamps. Below is the downlink command.
628
629 (% border="1" cellspacing="5" style="background-color:#f2f2f2; width:425.818px" %)
630 |(% colspan="4" style="background-color:#4f81bd; color:white; width:423px" %)**Downlink Command to poll Open/Close status (0x31)**
631 |(% style="width:58px" %)**1byte**|(% style="width:127px" %)**4bytes**|(% style="width:124px" %)**4bytes**|(% style="width:114px" %)**1byte**
632 |(% style="width:58px" %)31|(% style="width:127px" %)Timestamp start|(% style="width:124px" %)Timestamp end|(% style="width:114px" %)Uplink Interval
633
634 (((
635 Timestamp start and Timestamp end-use Unix TimeStamp format as mentioned above. Devices will reply with all data logs during this period, using the uplink interval.
636 )))
637
638 (((
639 For example, downlink command [[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/CPL01%20LoRaWAN%20Outdoor%20PulseContact%20%20Sensor%20Manual/WebHome/image-20220518162852-1.png?rev=1.1||alt="image-20220518162852-1.png"]]
640 )))
641
642 (((
643 Is to check 2021/11/12 12:00:00 to 2021/11/12 15:00:00's data
644 )))
645
646 (((
647 Uplink Internal =5s，means LDS12-LB will send one packet every 5s. range 5~~255s.
648 )))
649
650
651 == 2.6 Frequency Plans ==
652
653
654 The LDS12-LB uses OTAA mode and below frequency plans by default. If user want to use it with different frequency plan, please refer the AT command sets.
655
656 [[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/End%20Device%20Frequency%20Band/>>http://wiki.dragino.com/xwiki/bin/view/Main/End%20Device%20Frequency%20Band/]]
657
658
659 == 2.7 LiDAR ToF Measurement ==
660
661 === 2.7.1 Principle of Distance Measurement ===
662
663
664 The LiDAR probe is based on TOF, namely, Time of Flight principle. To be specific, the product emits modulation wave of near infrared ray on a periodic basis, which will be reflected after contacting object. The product obtains the time of flight by measuring round-trip phase difference and then calculates relative range between the product and the detection object, as shown below.
665
666 [[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LLDS12-LoRaWAN%20LiDAR%20ToF%20Distance%20Sensor%20User%20Manual/WebHome/1654831757579-263.png?rev=1.1||alt="1654831757579-263.png"]]
667
668
669 === 2.7.2 Distance Measurement Characteristics ===
670
671
672 With optimization of light path and algorithm, The LiDAR probe has minimized influence from external environment on distance measurement performance. Despite that, the range of distance measurement may still be affected by the environment illumination intensity and the reflectivity of detection object. As shown in below:
673
674 [[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LLDS12-LoRaWAN%20LiDAR%20ToF%20Distance%20Sensor%20User%20Manual/WebHome/1654831774373-275.png?rev=1.1||alt="1654831774373-275.png"]]
675
676
677 (((
678 (% style="color:blue" %)**① **(%%)Represents the detection blind zone of The LiDAR probe, 0-10cm, within which the output data is unreliable.
679 )))
680
681 (((
682 (% style="color:blue" %)**② **(%%)Represents the operating range of The LiDAR probe detecting black target with 10% reflectivity, 0.1-5m.
683 )))
684
685 (((
686 (% style="color:blue" %)**③ **(%%)Represents the operating range of The LiDAR probe detecting white target with 90% reflectivity, 0.1-12m.
687 )))
688
689
690 (((
691 Vertical Coordinates: Represents the radius of light spot for The LiDAR probe at different distances. The diameter of light spot depends on the FOV of The LiDAR probe (the term of FOV generally refers to the smaller value between the receiving angle and the transmitting angle), which is calculated as follows:
692 )))
693
694 [[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LLDS12-LoRaWAN%20LiDAR%20ToF%20Distance%20Sensor%20User%20Manual/WebHome/1654831797521-720.png?rev=1.1||alt="1654831797521-720.png"]]
695
696 (((
697 In the formula above, d is the diameter of light spot; D is detecting range; β is the value of the receiving angle of The LiDAR probe, 3.6°. Correspondence between the diameter of light spot and detecting range is given in Table below.
698 )))
699
700 [[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LLDS12-LoRaWAN%20LiDAR%20ToF%20Distance%20Sensor%20User%20Manual/WebHome/1654831810009-716.png?rev=1.1||alt="1654831810009-716.png"]]
701
702 (((
703 If the light spot reaches two objects with different distances, as shown in Figure 3, the output distance value will be a value between the actual distance values of the two objects. For a high accuracy requirement in practice, the above situation should be noticed to avoid the measurement error.
704 )))
705
706
707 === 2.7.3 Notice of usage ===
708
709
710 Possible invalid /wrong reading for LiDAR ToF tech:
711
712 * Measure high reflectivity object such as: Mirror, Smooth ceramic tile, static milk surface, will have possible wrong readings.
713 * While there is transparent object such as glass, water drop between the measured object and the LiDAR sensor, the reading might be wrong.
714 * The LiDAR probe is cover by dirty things; the reading might be wrong. In this case, need to clean the probe.
715 * The sensor window is made by Acrylic. Don't touch it with alcohol material. This will destroy the sensor window.
716
717 === 2.7.4  Reflectivity of different objects ===
718
719
720 (% border="1" cellspacing="5" style="background-color:#f2f2f2; width:379px" %)
721 |=(% style="width: 54px;background-color:#4F81BD;color:white" %)Item|=(% style="width: 231px;background-color:#4F81BD;color:white" %)Material|=(% style="width: 94px;background-color:#4F81BD;color:white" %)Relectivity
722 |(% style="width:53px" %)1|(% style="width:229px" %)Black foam rubber|(% style="width:93px" %)2.4%
723 |(% style="width:53px" %)2|(% style="width:229px" %)Black fabric|(% style="width:93px" %)3%
724 |(% style="width:53px" %)3|(% style="width:229px" %)Black rubber|(% style="width:93px" %)4%
725 |(% style="width:53px" %)4|(% style="width:229px" %)Coal (different types of coal)|(% style="width:93px" %)4~~8%
726 |(% style="width:53px" %)5|(% style="width:229px" %)Black car paint|(% style="width:93px" %)5%
727 |(% style="width:53px" %)6|(% style="width:229px" %)Black Jam|(% style="width:93px" %)10%
728 |(% style="width:53px" %)7|(% style="width:229px" %)Opaque black plastic|(% style="width:93px" %)14%
729 |(% style="width:53px" %)8|(% style="width:229px" %)Clean rough board|(% style="width:93px" %)20%
730 |(% style="width:53px" %)9|(% style="width:229px" %)Translucent plastic bottle|(% style="width:93px" %)62%
731 |(% style="width:53px" %)10|(% style="width:229px" %)Carton cardboard|(% style="width:93px" %)68%
732 |(% style="width:53px" %)11|(% style="width:229px" %)Clean pine|(% style="width:93px" %)70%
733 |(% style="width:53px" %)12|(% style="width:229px" %)Opaque white plastic|(% style="width:93px" %)87%
734 |(% style="width:53px" %)13|(% style="width:229px" %)White Jam|(% style="width:93px" %)90%
735 |(% style="width:53px" %)14|(% style="width:229px" %)Kodak Standard Whiteboard|(% style="width:93px" %)100%
736 |(% style="width:53px" %)15|(% style="width:229px" %)(((
737 Unpolished white metal surface
738 )))|(% style="width:93px" %)130%
739 |(% style="width:53px" %)16|(% style="width:229px" %)Glossy light metal surface|(% style="width:93px" %)150%
740 |(% style="width:53px" %)17|(% style="width:229px" %)stainless steel|(% style="width:93px" %)200%
741 |(% style="width:53px" %)18|(% style="width:229px" %)Reflector plate, reflective tape|(% style="width:93px" %)>300%
742
743 = 3. Configure LDS12-LB =
744
745 == 3.1 Configure Methods ==
746
747
748 LDS12-LB supports below configure method:
749
750 * AT Command via Bluetooth Connection (**Recommended**): [[BLE Configure Instruction>>http://wiki.dragino.com/xwiki/bin/view/Main/BLE%20Bluetooth%20Remote%20Configure/]].
751
752 * AT Command via UART Connection : See [[UART Connection>>http://wiki.dragino.com/xwiki/bin/view/Main/UART%20Access%20for%20LoRa%20ST%20v4%20base%20model/#H2.3UARTConnectionforSN50v3basemotherboard]].
753
754 * LoRaWAN Downlink.  Instruction for different platforms: See [[IoT LoRaWAN Server>>http://wiki.dragino.com/xwiki/bin/view/Main/]] section.
755
756 == 3.2 General Commands ==
757
758
759 These commands are to configure:
760
761 * General system settings like: uplink interval.
762
763 * LoRaWAN protocol & radio related command.
764
765 They are same for all Dragino Devices which support DLWS-005 LoRaWAN Stack. These commands can be found on the wiki:
766
767 [[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/End%20Device%20AT%20Commands%20and%20Downlink%20Command/>>http://wiki.dragino.com/xwiki/bin/view/Main/End%20Device%20AT%20Commands%20and%20Downlink%20Command/]]
768
769
770 == 3.3 Commands special design for LDS12-LB ==
771
772
773 These commands only valid for LDS12-LB, as below:
774
775
776 === 3.3.1 Set Transmit Interval Time ===
777
778
779 (((
780 Feature: Change LoRaWAN End Node Transmit Interval.
781 )))
782
783 (((
784 (% style="color:blue" %)**AT Command: AT+TDC**
785 )))
786
787 (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
788 |=(% 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**
789 |(% style="width:156px" %)AT+TDC=?|(% style="width:137px" %)Show current transmit Interval|(((
790 30000
791 OK
792 the interval is 30000ms = 30s
793 )))
794 |(% style="width:156px" %)AT+TDC=60000|(% style="width:137px" %)Set Transmit Interval|(((
795 OK
796 Set transmit interval to 60000ms = 60 seconds
797 )))
798
799 (((
800 (% style="color:blue" %)**Downlink Command: 0x01**
801 )))
802
803 (((
804 Format: Command Code (0x01) followed by 3 bytes time value.
805 )))
806
807 (((
808 If the downlink payload=0100003C, it means set the END Node's Transmit Interval to 0x00003C=60(S), while type code is 01.
809 )))
810
811 * (((
812 Example 1: Downlink Payload: 0100001E  ~/~/ Set Transmit Interval (TDC) = 30 seconds
813 )))
814 * (((
815 Example 2: Downlink Payload: 0100003C  ~/~/ Set Transmit Interval (TDC) = 60 seconds 
816
817
818
819 )))
820
821 === 3.3.2 Set Interrupt Mode ===
822
823
824 Feature, Set Interrupt mode for pin of GPIO_EXTI.
825
826 When AT+INTMOD=0 is set, GPIO_EXTI is used as a digital input port.
827
828 (% style="color:blue" %)**AT Command: AT+INTMOD**
829
830 (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
831 |=(% style="width: 155px;background-color:#4F81BD;color:white" %)**Command Example**|=(% style="width: 197px;background-color:#4F81BD;color:white" %)**Function**|=(% style="width: 158px;background-color:#4F81BD;color:white" %)**Response**
832 |(% style="width:154px" %)AT+INTMOD=?|(% style="width:196px" %)Show current interrupt mode|(% style="width:157px" %)(((
833 0
834 OK
835 the mode is 0 =Disable Interrupt
836 )))
837 |(% style="width:154px" %)(((
838 AT+INTMOD=2
839
840 (default)
841 )))|(% style="width:196px" %)(((
842 Set Transmit Interval
843 0. (Disable Interrupt),
844 ~1. (Trigger by rising and falling edge)
845 2. (Trigger by falling edge)
846 3. (Trigger by rising edge)
847 )))|(% style="width:157px" %)OK
848
849 (% style="color:blue" %)**Downlink Command: 0x06**
850
851 Format: Command Code (0x06) followed by 3 bytes.
852
853 This means that the interrupt mode of the end node is set to 0x000003=3 (rising edge trigger), and the type code is 06.
854
855 * Example 1: Downlink Payload: 06000000  ~/~/  Turn off interrupt mode
856
857 * Example 2: Downlink Payload: 06000003  ~/~/  Set the interrupt mode to rising edge trigger
858
859 === 3.3.3  Set Power Output Duration ===
860
861 Control the output duration 3V3(pin of VBAT_OUT) . Before each sampling, device will
862
863 ~1. first enable the power output to external sensor,
864
865 2. keep it on as per duration, read sensor value and construct uplink payload
866
867 3. final, close the power output.
868
869 (% style="color:blue" %)**AT Command: AT+3V3T**
870
871 (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
872 |=(% style="width: 155px;background-color:#4F81BD;color:white" %)**Command Example**|=(% style="width: 197px;background-color:#4F81BD;color:white" %)**Function**|=(% style="width: 158px;background-color:#4F81BD;color:white" %)**Response**
873 |(% style="width:154px" %)AT+3V3T=?|(% style="width:196px" %)Show 3V3 open time.|(% style="width:157px" %)0 (default)
874 OK
875 |(% style="width:154px" %)AT+3V3T=1000|(% style="width:196px" %)Close after a delay of 1000 milliseconds.|(% style="width:157px" %)OK
876 |(% style="width:154px" %)AT+3V3T=0|(% style="width:196px" %)Always turn on the power supply of 3V3 pin.|(% style="width:157px" %)OK
877 |(% style="width:154px" %)AT+3V3T=65535|(% style="width:196px" %)Always turn off the power supply of 3V3 pin.|(% style="width:157px" %)OK
878
879 (% style="color:blue" %)**Downlink Command: 0x07**(%%)
880 Format: Command Code (0x07) followed by 3 bytes.
881
882 The first byte is 01,the second and third bytes are the time to turn on.
883
884 * Example 1: Downlink Payload: 07 01 00 00  **~-~-->**  AT+3V3T=0
885 * Example 2: Downlink Payload: 07 01 01 F4  **~-~-->**  AT+3V3T=500
886 * Example 3: Downlink Payload: 07 01 FF FF  **~-~-->**  AT+3V3T=65535
887
888 = 4. Battery & Power Consumption =
889
890
891 LDS12-LB use ER26500 + SPC1520 battery pack. See below link for detail information about the battery info and how to replace.
892
893 [[**Battery Info & Power Consumption Analyze**>>http://wiki.dragino.com/xwiki/bin/view/Main/How%20to%20calculate%20the%20battery%20life%20of%20Dragino%20sensors%3F/]] .
894
895
896 = 5. OTA Firmware update =
897
898
899 (% class="wikigeneratedid" %)
900 User can change firmware LDS12-LB to:
901
902 * Change Frequency band/ region.
903
904 * Update with new features.
905
906 * Fix bugs.
907
908 Firmware and changelog can be downloaded from : **[[Firmware download link>>url:https://www.dropbox.com/sh/w1p7ukjrx49e62r/AAB3uCNCt-koYUvMkZUPBRSca?dl=0]]**
909
910 Methods to Update Firmware:
911
912 * (Recommanded way) OTA firmware update via wireless:  **[[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/Firmware%20OTA%20Update%20for%20Sensors/>>url:http://wiki.dragino.com/xwiki/bin/view/Main/Firmware%20OTA%20Update%20for%20Sensors/]]**
913
914 * Update through UART TTL interface: **[[Instruction>>url:http://wiki.dragino.com/xwiki/bin/view/Main/UART%20Access%20for%20LoRa%20ST%20v4%20base%20model/#H1.LoRaSTv4baseHardware]]**.
915
916 = 6. FAQ =
917
918 == 6.1 What is the frequency plan for LDS12-LB? ==
919
920
921 LDS12-LB use the same frequency as other Dragino products. User can see the detail from this link:  [[Introduction>>doc:Main.End Device Frequency Band.WebHome||anchor="H1.Introduction"]]
922
923
924 = 7. Trouble Shooting =
925
926 == 7.1 AT Command input doesn't work ==
927
928
929 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:blue" %)**ENTER**(%%) while sending out the command. Some serial tool doesn't send (% style="color:blue" %)**ENTER**(%%) while press the send key, user need to add ENTER in their string.
930
931
932 == 7.2 Significant error between the output distant value of LiDAR and actual distance ==
933
934
935 (((
936 (% style="color:blue" %)**Cause ①**(%%)**：**Due to the physical principles of The LiDAR probe, the above phenomenon is likely to occur if the detection object is the material with high reflectivity (such as mirror, smooth floor tile, etc.) or transparent substance. (such as glass and water, etc.)
937 )))
938
939 (((
940 (% style="color:red" %)**Troubleshooting**(%%): Please avoid use of this product under such circumstance in practice.
941 )))
942
943
944 (((
945 (% style="color:blue" %)**Cause ②**(%%)**: **The IR-pass filters are blocked.
946 )))
947
948 (((
949 (% style="color:red" %)**Troubleshooting**(%%): please use dry dust-free cloth to gently remove the foreign matter.
950 )))
951
952
953 = 8. Order Info =
954
955
956 Part Number: (% style="color:blue" %)**LDS12-LB-XXX**
957
958 (% style="color:red" %)**XXX**(%%): **The default frequency band**
959
960 * (% style="color:red" %)**AS923**(%%): LoRaWAN AS923 band
961
962 * (% style="color:red" %)**AU915**(%%): LoRaWAN AU915 band
963
964 * (% style="color:red" %)**EU433**(%%): LoRaWAN EU433 band
965
966 * (% style="color:red" %)**EU868**(%%): LoRaWAN EU868 band
967
968 * (% style="color:red" %)**KR920**(%%): LoRaWAN KR920 band
969
970 * (% style="color:red" %)**US915**(%%): LoRaWAN US915 band
971
972 * (% style="color:red" %)**IN865**(%%): LoRaWAN IN865 band
973
974 * (% style="color:red" %)**CN470**(%%): LoRaWAN CN470 band
975
976 = 9. ​Packing Info =
977
978
979 (% style="color:#037691" %)**Package Includes**:
980
981 * LDS12-LB LoRaWAN LiDAR ToF Distance Sensor x 1
982
983 (% style="color:#037691" %)**Dimension and weight**:
984
985 * Device Size: cm
986
987 * Device Weight: g
988
989 * Package Size / pcs : cm
990
991 * Weight / pcs : g
992
993 = 10. Support =
994
995
996 * 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.
997
998 * 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.cc>>mailto:Support@dragino.cc]].