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Version 82.19 by Xiaoling on 2023/06/14 17:18
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1 (% style="text-align:center" %)
2 [[image:image-20230614153353-1.png]]
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9
10 **Table of Contents：**
11
12 {{toc/}}
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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-20230614162334-2.png||height="468" 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 @ 90% Reflectivity
49 * Accuracy :  ±5cm@(0.1-6m), ±1%@(6m-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@(0.1-6m), ±1%@(6m-12m)
73 * Distance resolution : 5mm
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:#D9E2F3;color:#0070C0" %)**Behavior on ACT**|=(% style="width: 117px;background-color:#D9E2F3;color:#0070C0" %)**Function**|=(% style="width: 225px;background-color:#D9E2F3;color:#0070C0" %)**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 [[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/WL03A-LB_LoRaWAN_None-Position_Rope_Type_Water_Leak_Controller_User_Manual/WebHome/image-20230613144156-1.png?rev=1.1||alt="image-20230613144156-1.png"]]
159
160
161
162 == 1.9 Mechanical ==
163
164
165 [[image:Main.User Manual for LoRaWAN End Nodes.D20-LBD22-LBD23-LB_LoRaWAN_Temperature_Sensor_User_Manual.WebHome@1675143884058-338.png]]
166
167
168 [[image:Main.User Manual for LoRaWAN End Nodes.D20-LBD22-LBD23-LB_LoRaWAN_Temperature_Sensor_User_Manual.WebHome@1675143899218-599.png]]
169
170
171 [[image:Main.User Manual for LoRaWAN End Nodes.D20-LBD22-LBD23-LB_LoRaWAN_Temperature_Sensor_User_Manual.WebHome@1675143909447-639.png]]
172
173
174 (% style="color:blue" %)**Probe Mechanical:**
175
176
177
178 [[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"]]
179
180
181 = 2. Configure LDS12-LB to connect to LoRaWAN network =
182
183 == 2.1 How it works ==
184
185
186 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.
187
188 (% style="display:none" %) (%%)
189
190 == 2.2 ​Quick guide to connect to LoRaWAN server (OTAA) ==
191
192
193 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.
194
195 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.
196
197 [[image:image-20230614162359-3.png||height="468" width="800"]](% style="display:none" %)
198
199
200 (% style="color:blue" %)**Step 1:**(%%) Create a device in TTN with the OTAA keys from LDS12-LB.
201
202 Each LDS12-LB is shipped with a sticker with the default device EUI as below:
203
204 [[image:image-20230426084152-1.png||alt="图片-20230426084152-1.png" height="233" width="502"]]
205
206
207 You can enter this key in the LoRaWAN Server portal. Below is TTN screen shot:
208
209
210 (% style="color:blue" %)**Register the device**
211
212 [[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"]]
213
214
215 (% style="color:blue" %)**Add APP EUI and DEV EUI**
216
217 [[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"]]
218
219
220 (% style="color:blue" %)**Add APP EUI in the application**
221
222
223 [[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"]]
224
225
226 (% style="color:blue" %)**Add APP KEY**
227
228 [[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"]]
229
230
231 (% style="color:blue" %)**Step 2:**(%%) Activate on LDS12-LB
232
233
234 Press the button for 5 seconds to activate the LDS12-LB.
235
236 (% 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.
237
238 After join success, it will start to upload messages to TTN and you can see the messages in the panel.
239
240
241 == 2.3 ​Uplink Payload ==
242
243
244 (((
245 LDS12-LB will uplink payload via LoRaWAN with below payload format: 
246 )))
247
248 (((
249 Uplink payload includes in total 11 bytes.
250 )))
251
252 (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
253 |=(% style="width: 62.5px;background-color:#4F81BD;color:white" %)(((
254 **Size(bytes)**
255 )))|=(% style="width: 62.5px;background-color:#4F81BD;color:white" %)**2**|=(% style="width: 62.5px;background-color:#4F81BD;color:white" %)**2**|=(% style="background-color:#4F81BD;color:white" %)**2**|=(% style="background-color:#4F81BD;color:white" %)**2**|=(% style="background-color:#4F81BD;color:white" %)**1**|=(% style="background-color:#4F81BD;color:white" %)**1**|=(% style="background-color:#4F81BD;color:white" %)**1**
256 |(% style="width:62.5px" %)**Value**|(% style="width:62.5px" %)[[BAT>>||anchor="H2.3.1BatteryInfo"]]|(% style="width:62.5px" %)(((
257 [[Temperature DS18B20>>||anchor="H2.3.2DS18B20Temperaturesensor"]]
258 )))|[[Distance>>||anchor="H2.3.3Distance"]]|[[Distance signal strength>>||anchor="H2.3.4Distancesignalstrength"]]|(((
259 [[Interrupt flag>>||anchor="H2.3.5InterruptPin"]]
260 )))|[[LiDAR temp>>||anchor="H2.3.6LiDARtemp"]]|(((
261 [[Message Type>>||anchor="H2.3.7MessageType"]]
262 )))
263
264 [[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LLDS12-LoRaWAN%20LiDAR%20ToF%20Distance%20Sensor%20User%20Manual/WebHome/1654833689380-972.png?rev=1.1||alt="1654833689380-972.png"]]
265
266
267 === 2.3.1 Battery Info ===
268
269
270 Check the battery voltage for LDS12-LB.
271
272 Ex1: 0x0B45 = 2885mV
273
274 Ex2: 0x0B49 = 2889mV
275
276
277 === 2.3.2 DS18B20 Temperature sensor ===
278
279
280 This is optional, user can connect external DS18B20 sensor to the +3.3v, 1-wire and GND pin . and this field will report temperature.
281
282
283 **Example**:
284
285 If payload is: 0105H:  (0105 & FC00 == 0), temp = 0105H /10 = 26.1 degree
286
287 If payload is: FF3FH :  (FF3F & FC00 == 1) , temp = (FF3FH - 65536)/10 = -19.3 degrees.
288
289
290 === 2.3.3 Distance ===
291
292
293 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.
294
295
296 **Example**:
297
298 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.
299
300
301 === 2.3.4 Distance signal strength ===
302
303
304 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.
305
306
307 **Example**:
308
309 If payload is: 01D7(H)=471(D), distance signal strength=471, 471>100,471≠65535, the measured value of Dist is considered credible.
310
311 Customers can judge whether they need to adjust the environment based on the signal strength.
312
313
314 === 2.3.5 Interrupt Pin ===
315
316
317 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.
318
319 Note: The Internet Pin is a separate pin in the screw terminal. See [[pin mapping>>||anchor="H1.8PinDefinitions"]].
320
321 **Example:**
322
323 0x00: Normal uplink packet.
324
325 0x01: Interrupt Uplink Packet.
326
327
328 === 2.3.6 LiDAR temp ===
329
330
331 Characterize the internal temperature value of the sensor.
332
333 **Example: **
334 If payload is: 1C(H) <<24>>24=28(D),LiDAR temp=28℃.
335 If payload is: F2(H) <<24>>24=-14(D),LiDAR temp=-14℃.
336
337
338 === 2.3.7 Message Type ===
339
340
341 (((
342 For a normal uplink payload, the message type is always 0x01.
343 )))
344
345 (((
346 Valid Message Type:
347 )))
348
349 (% border="1" cellspacing="5" style="background-color:#f2f2f2; width:499px" %)
350 |=(% 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**
351 |(% style="width:160px" %)0x01|(% style="width:163px" %)Normal Uplink|(% style="width:173px" %)[[Normal Uplink Payload>>||anchor="H2.3200BUplinkPayload"]]
352 |(% style="width:160px" %)0x02|(% style="width:163px" %)Reply configures info|(% style="width:173px" %)[[Configure Info Payload>>||anchor="H3.ConfigureLDS12-LB"]]
353
354
355 === 2.3.8 Decode payload in The Things Network ===
356
357
358 While using TTN network, you can add the payload format to decode the payload.
359
360 [[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"]]
361
362
363 (((
364 The payload decoder function for TTN is here:
365 )))
366
367 (((
368 LDS12-LB TTN Payload Decoder:  [[https:~~/~~/github.com/dragino/dragino-end-node-decoder>>https://github.com/dragino/dragino-end-node-decoder]]
369 )))
370
371
372 == 2.4 Uplink Interval ==
373
374
375 The LDS12-LB by default uplink the sensor data every 20 minutes. User can change this interval by AT Command or LoRaWAN Downlink Command. See this link: [[Change Uplink Interval>>||anchor="H3.3.1SetTransmitIntervalTime"]]
376
377
378 == 2.5 ​Show Data in DataCake IoT Server ==
379
380
381 (((
382 [[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:
383 )))
384
385
386 (((
387 (% style="color:blue" %)**Step 1**(%%)**: Be sure that your device is programmed and properly connected to the network at this time.**
388 )))
389
390 (((
391 (% 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:**
392 )))
393
394
395 [[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"]]
396
397
398 [[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"]]
399
400
401 (% style="color:blue" %)**Step 3**(%%)**: Create an account or log in Datacake.**
402
403 (% style="color:blue" %)**Step 4**(%%)**: Search the LDS12-LB and add DevEUI.**
404
405 [[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"]]
406
407
408 After added, the sensor data arrive TTN V3, it will also arrive and show in Datacake.
409
410 [[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"]]
411
412
413 == 2.6 Datalog Feature ==
414
415
416 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.
417
418
419 === 2.6.1 Ways to get datalog via LoRaWAN ===
420
421
422 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.
423
424 * (((
425 a) LDS12-LB will do an ACK check for data records sending to make sure every data arrive server.
426 )))
427 * (((
428 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.
429 )))
430
431 Below is the typical case for the auto-update datalog feature (Set PNACKMD=1)
432
433 [[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"]]
434
435
436 === 2.6.2 Unix TimeStamp ===
437
438
439 LDS12-LB uses Unix TimeStamp format based on
440
441 [[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"]]
442
443 User can get this time from link:  [[https:~~/~~/www.epochconverter.com/>>url:https://www.epochconverter.com/]] :
444
445 Below is the converter example
446
447 [[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"]]
448
449
450 So, we can use AT+TIMESTAMP=1611889405 or downlink 3060137afd00 to set the current time 2021 – Jan ~-~- 29 Friday 03:03:25
451
452
453 === 2.6.3 Set Device Time ===
454
455
456 User need to set (% style="color:blue" %)**SYNCMOD=1**(%%) to enable sync time via MAC command.
457
458 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).
459
460 (% 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.**
461
462
463 === 2.6.4 Poll sensor value ===
464
465
466 Users can poll sensor values based on timestamps. Below is the downlink command.
467
468 (% border="1" cellspacing="5" style="background-color:#f2f2f2; width:425.818px" %)
469 |(% colspan="4" style="background-color:#d9e2f3; color:#0070c0; width:423px" %)**Downlink Command to poll Open/Close status (0x31)**
470 |(% style="width:58px" %)**1byte**|(% style="width:127px" %)**4bytes**|(% style="width:124px" %)**4bytes**|(% style="width:114px" %)**1byte**
471 |(% style="width:58px" %)31|(% style="width:127px" %)Timestamp start|(% style="width:124px" %)Timestamp end|(% style="width:114px" %)Uplink Interval
472
473 (((
474 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.
475 )))
476
477 (((
478 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"]]
479 )))
480
481 (((
482 Is to check 2021/11/12 12:00:00 to 2021/11/12 15:00:00's data
483 )))
484
485 (((
486 Uplink Internal =5s，means LDS12-LB will send one packet every 5s. range 5~~255s.
487 )))
488
489
490 == 2.7 Frequency Plans ==
491
492
493 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.
494
495 [[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/End%20Device%20Frequency%20Band/>>http://wiki.dragino.com/xwiki/bin/view/Main/End%20Device%20Frequency%20Band/]]
496
497
498 == 2.8 LiDAR ToF Measurement ==
499
500 === 2.8.1 Principle of Distance Measurement ===
501
502
503 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.
504
505 [[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"]]
506
507
508 === 2.8.2 Distance Measurement Characteristics ===
509
510
511 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:
512
513 [[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"]]
514
515
516 (((
517 (% style="color:blue" %)**① **(%%)Represents the detection blind zone of The LiDAR probe, 0-10cm, within which the output data is unreliable.
518 )))
519
520 (((
521 (% style="color:blue" %)**② **(%%)Represents the operating range of The LiDAR probe detecting black target with 10% reflectivity, 0.1-5m.
522 )))
523
524 (((
525 (% style="color:blue" %)**③ **(%%)Represents the operating range of The LiDAR probe detecting white target with 90% reflectivity, 0.1-12m.
526 )))
527
528
529 (((
530 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:
531 )))
532
533
534 [[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"]]
535
536
537 (((
538 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.
539 )))
540
541 [[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"]]
542
543 (((
544 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.
545 )))
546
547
548 === 2.8.3 Notice of usage ===
549
550
551 Possible invalid /wrong reading for LiDAR ToF tech:
552
553 * Measure high reflectivity object such as: Mirror, Smooth ceramic tile, static milk surface, will have possible wrong readings.
554 * While there is transparent object such as glass, water drop between the measured object and the LiDAR sensor, the reading might be wrong.
555 * The LiDAR probe is cover by dirty things; the reading might be wrong. In this case, need to clean the probe.
556 * The sensor window is made by Acrylic. Don't touch it with alcohol material. This will destroy the sensor window.
557
558
559
560
561 === 2.8.4  Reflectivity of different objects ===
562
563
564 (% border="1" cellspacing="5" style="background-color:#f2f2f2; width:379px" %)
565 |=(% 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
566 |(% style="width:53px" %)1|(% style="width:229px" %)Black foam rubber|(% style="width:93px" %)2.4%
567 |(% style="width:53px" %)2|(% style="width:229px" %)Black fabric|(% style="width:93px" %)3%
568 |(% style="width:53px" %)3|(% style="width:229px" %)Black rubber|(% style="width:93px" %)4%
569 |(% style="width:53px" %)4|(% style="width:229px" %)Coal (different types of coal)|(% style="width:93px" %)4~~8%
570 |(% style="width:53px" %)5|(% style="width:229px" %)Black car paint|(% style="width:93px" %)5%
571 |(% style="width:53px" %)6|(% style="width:229px" %)Black Jam|(% style="width:93px" %)10%
572 |(% style="width:53px" %)7|(% style="width:229px" %)Opaque black plastic|(% style="width:93px" %)14%
573 |(% style="width:53px" %)8|(% style="width:229px" %)Clean rough board|(% style="width:93px" %)20%
574 |(% style="width:53px" %)9|(% style="width:229px" %)Translucent plastic bottle|(% style="width:93px" %)62%
575 |(% style="width:53px" %)10|(% style="width:229px" %)Carton cardboard|(% style="width:93px" %)68%
576 |(% style="width:53px" %)11|(% style="width:229px" %)Clean pine|(% style="width:93px" %)70%
577 |(% style="width:53px" %)12|(% style="width:229px" %)Opaque white plastic|(% style="width:93px" %)87%
578 |(% style="width:53px" %)13|(% style="width:229px" %)White Jam|(% style="width:93px" %)90%
579 |(% style="width:53px" %)14|(% style="width:229px" %)Kodak Standard Whiteboard|(% style="width:93px" %)100%
580 |(% style="width:53px" %)15|(% style="width:229px" %)(((
581 Unpolished white metal surface
582 )))|(% style="width:93px" %)130%
583 |(% style="width:53px" %)16|(% style="width:229px" %)Glossy light metal surface|(% style="width:93px" %)150%
584 |(% style="width:53px" %)17|(% style="width:229px" %)stainless steel|(% style="width:93px" %)200%
585 |(% style="width:53px" %)18|(% style="width:229px" %)Reflector plate, reflective tape|(% style="width:93px" %)>300%
586
587
588
589
590 = 3. Configure LDS12-LB =
591
592 == 3.1 Configure Methods ==
593
594
595 LDS12-LB supports below configure method:
596
597 * AT Command via Bluetooth Connection (**Recommended**): [[BLE Configure Instruction>>http://wiki.dragino.com/xwiki/bin/view/Main/BLE%20Bluetooth%20Remote%20Configure/]].
598
599 * 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]].
600
601 * LoRaWAN Downlink.  Instruction for different platforms: See [[IoT LoRaWAN Server>>http://wiki.dragino.com/xwiki/bin/view/Main/]] section.
602
603
604
605
606 == 3.2 General Commands ==
607
608
609 These commands are to configure:
610
611 * General system settings like: uplink interval.
612
613 * LoRaWAN protocol & radio related command.
614
615 They are same for all Dragino Devices which support DLWS-005 LoRaWAN Stack. These commands can be found on the wiki:
616
617 [[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/]]
618
619
620 == 3.3 Commands special design for LDS12-LB ==
621
622
623 These commands only valid for LDS12-LB, as below:
624
625
626 === 3.3.1 Set Transmit Interval Time ===
627
628
629 (((
630 Feature: Change LoRaWAN End Node Transmit Interval.
631 )))
632
633 (((
634 (% style="color:blue" %)**AT Command: AT+TDC**
635 )))
636
637 (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
638 |=(% 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**
639 |(% style="width:156px" %)AT+TDC=?|(% style="width:137px" %)Show current transmit Interval|(((
640 30000
641 OK
642 the interval is 30000ms = 30s
643 )))
644 |(% style="width:156px" %)AT+TDC=60000|(% style="width:137px" %)Set Transmit Interval|(((
645 OK
646 Set transmit interval to 60000ms = 60 seconds
647 )))
648
649 (((
650 (% style="color:blue" %)**Downlink Command: 0x01**
651 )))
652
653 (((
654 Format: Command Code (0x01) followed by 3 bytes time value.
655 )))
656
657 (((
658 If the downlink payload=0100003C, it means set the END Node's Transmit Interval to 0x00003C=60(S), while type code is 01.
659 )))
660
661 * (((
662 Example 1: Downlink Payload: 0100001E  ~/~/ Set Transmit Interval (TDC) = 30 seconds
663 )))
664 * (((
665 Example 2: Downlink Payload: 0100003C  ~/~/ Set Transmit Interval (TDC) = 60 seconds 
666 )))
667
668 === 3.3.2 Set Interrupt Mode ===
669
670
671 Feature, Set Interrupt mode for PA8 of pin.
672
673 When AT+INTMOD=0 is set, PA8 is used as a digital input port.
674
675 (% style="color:blue" %)**AT Command: AT+INTMOD**
676
677 (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
678 |=(% 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**
679 |(% style="width:154px" %)AT+INTMOD=?|(% style="width:196px" %)Show current interrupt mode|(% style="width:157px" %)(((
680 0
681 OK
682 the mode is 0 =Disable Interrupt
683 )))
684 |(% style="width:154px" %)AT+INTMOD=2|(% style="width:196px" %)(((
685 Set Transmit Interval
686 0. (Disable Interrupt),
687 ~1. (Trigger by rising and falling edge)
688 2. (Trigger by falling edge)
689 3. (Trigger by rising edge)
690 )))|(% style="width:157px" %)OK
691
692 (% style="color:blue" %)**Downlink Command: 0x06**
693
694 Format: Command Code (0x06) followed by 3 bytes.
695
696 This means that the interrupt mode of the end node is set to 0x000003=3 (rising edge trigger), and the type code is 06.
697
698 * Example 1: Downlink Payload: 06000000  ~/~/  Turn off interrupt mode
699
700 * Example 2: Downlink Payload: 06000003  ~/~/  Set the interrupt mode to rising edge trigger
701
702
703
704
705
706 === 3.3.3 Get Firmware Version Info ===
707
708
709 Feature: use downlink to get firmware version.
710
711 (% style="color:blue" %)**Downlink Command: 0x26**
712
713 (% border="1" cellspacing="5" style="background-color:#f2f2f2; width:492px" %)
714 |(% style="background-color:#4F81BD;color:white; width:191px" %)**Downlink Control Type**|(% style="background-color:#4F81BD;color:white; width:57px" %)**FPort**|(% style="background-color:#4F81BD;color:white; width:91px" %)**Type Code**|(% style="background-color:#4F81BD;color:white; width:153px" %)**Downlink payload size(bytes)**
715 |(% style="width:191px" %)Get Firmware Version Info|(% style="width:57px" %)Any|(% style="width:91px" %)26|(% style="width:151px" %)2
716
717 * Reply to the confirmation package: 26 01
718 * Reply to non-confirmed packet: 26 00
719
720 Device will send an uplink after got this downlink command. With below payload:
721
722 Configures info payload:
723
724 (% border="1" cellspacing="5" style="background-color:#f2f2f2; width:510px" %)
725 |=(% style="background-color:#4F81BD;color:white" %)(((
726 **Size(bytes)**
727 )))|=(% style="background-color:#4F81BD;color:white" %)**1**|=(% style="background-color:#4F81BD;color:white" %)**1**|=(% style="background-color:#4F81BD;color:white" %)**1**|=(% style="background-color:#4F81BD;color:white" %)**1**|=(% style="background-color:#4F81BD;color:white" %)**1**|=(% style="background-color:#4F81BD;color:white" %)**5**|=(% style="background-color:#4F81BD;color:white" %)**1**
728 |**Value**|Software Type|(((
729 Frequency Band
730 )))|Sub-band|(((
731 Firmware Version
732 )))|Sensor Type|Reserve|(((
733 [[Message Type>>||anchor="H2.3.7MessageType"]]
734 Always 0x02
735 )))
736
737 (% style="color:#037691" %)**Software Type**(%%): Always 0x03 for LLDS12
738
739 (% style="color:#037691" %)**Frequency Band**:
740
741 *0x01: EU868
742
743 *0x02: US915
744
745 *0x03: IN865
746
747 *0x04: AU915
748
749 *0x05: KZ865
750
751 *0x06: RU864
752
753 *0x07: AS923
754
755 *0x08: AS923-1
756
757 *0x09: AS923-2
758
759 *0xa0: AS923-3
760
761
762 (% style="color:#037691" %)**Sub-Band**(%%): value 0x00 ~~ 0x08
763
764 (% style="color:#037691" %)**Firmware Version**(%%): 0x0100, Means: v1.0.0 version
765
766 (% style="color:#037691" %)**Sensor Type**:
767
768 0x01: LSE01
769
770 0x02: LDDS75
771
772 0x03: LDDS20
773
774 0x04: LLMS01
775
776 0x05: LSPH01
777
778 0x06: LSNPK01
779
780 0x07: LLDS12
781
782
783 = 4. Battery & Power Consumption =
784
785
786 LDS12-LB use ER26500 + SPC1520 battery pack. See below link for detail information about the battery info and how to replace.
787
788 [[**Battery Info & Power Consumption Analyze**>>http://wiki.dragino.com/xwiki/bin/view/Main/How%20to%20calculate%20the%20battery%20life%20of%20Dragino%20sensors%3F/]] .
789
790
791 = 5. OTA Firmware update =
792
793
794 (% class="wikigeneratedid" %)
795 User can change firmware LDS12-LB to:
796
797 * Change Frequency band/ region.
798
799 * Update with new features.
800
801 * Fix bugs.
802
803 Firmware and changelog can be downloaded from : **[[Firmware download link>>url:https://www.dropbox.com/sh/ph4uyz0rchflrnw/AADr1f_5Sg30804NItpfOQbla?dl=0]]**
804
805 Methods to Update Firmware:
806
807 * (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/]]**
808
809 * 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]]**.
810
811 = 6. FAQ =
812
813 == 6.1 What is the frequency plan for LDS12-LB? ==
814
815
816 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"]]
817
818
819 = 7. Trouble Shooting =
820
821 == 7.1 AT Command input doesn't work ==
822
823
824 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.
825
826
827 == 7.2 Significant error between the output distant value of LiDAR and actual distance ==
828
829
830 (((
831 (% 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.)
832 )))
833
834 (((
835 Troubleshooting: Please avoid use of this product under such circumstance in practice.
836 )))
837
838
839 (((
840 (% style="color:blue" %)**Cause ②**(%%)**: **The IR-pass filters are blocked.
841 )))
842
843 (((
844 Troubleshooting: please use dry dust-free cloth to gently remove the foreign matter.
845 )))
846
847
848 = 8. Order Info =
849
850
851 Part Number: (% style="color:blue" %)**LDS12-LB-XXX**
852
853 (% style="color:red" %)**XXX**(%%): **The default frequency band**
854
855 * (% style="color:red" %)**AS923**(%%): LoRaWAN AS923 band
856
857 * (% style="color:red" %)**AU915**(%%): LoRaWAN AU915 band
858
859 * (% style="color:red" %)**EU433**(%%): LoRaWAN EU433 band
860
861 * (% style="color:red" %)**EU868**(%%): LoRaWAN EU868 band
862
863 * (% style="color:red" %)**KR920**(%%): LoRaWAN KR920 band
864
865 * (% style="color:red" %)**US915**(%%): LoRaWAN US915 band
866
867 * (% style="color:red" %)**IN865**(%%): LoRaWAN IN865 band
868
869 * (% style="color:red" %)**CN470**(%%): LoRaWAN CN470 band
870
871 = 9. ​Packing Info =
872
873
874 (% style="color:#037691" %)**Package Includes**:
875
876 * LDS12-LB LoRaWAN LiDAR ToF Distance Sensor x 1
877
878 (% style="color:#037691" %)**Dimension and weight**:
879
880 * Device Size: cm
881
882 * Device Weight: g
883
884 * Package Size / pcs : cm
885
886 * Weight / pcs : g
887
888 = 10. Support =
889
890
891 * 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.
892
893 * 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]].