Skip to Content
Version 84.3 by Xiaoling on 2023/06/15 16:41
Show last authors
1 (% style="text-align:center" %)
2 [[image:image-20230614153353-1.png]]
3
4
5
6
7
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 @ 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
58
59 == 1.3 Specification ==
60
61
62 (% style="color:#037691" %)**Common DC Characteristics:**
63
64 * Supply Voltage: built in 8500mAh Li-SOCI2 battery , 2.5v ~~ 3.6v
65 * Operating Temperature: -40 ~~ 85°C
66
67 (% style="color:#037691" %)**Probe Specification:**
68
69 * Storage temperature：-20℃~~75℃
70 * Operating temperature : -20℃~~60℃
71 * Measure Distance:
72 ** 0.1m ~~ 12m @ 90% Reflectivity
73 ** 0.1m ~~ 4m @ 10% Reflectivity
74 * Accuracy : ±5cm@(0.1-6m), ±1%@(6m-12m)
75 * Distance resolution : 5mm
76 * Ambient light immunity : 70klux
77 * Enclosure rating : IP65
78 * Light source : LED
79 * Central wavelength : 850nm
80 * FOV : 3.6°
81 * Material of enclosure : ABS+PC
82 * Wire length : 25cm
83
84 (% style="color:#037691" %)**LoRa Spec:**
85
86 * Frequency Range,  Band 1 (HF): 862 ~~ 1020 Mhz
87 * Max +22 dBm constant RF output vs.
88 * RX sensitivity: down to -139 dBm.
89 * Excellent blocking immunity
90
91 (% style="color:#037691" %)**Battery:**
92
93 * Li/SOCI2 un-chargeable battery
94 * Capacity: 8500mAh
95 * Self-Discharge: <1% / Year @ 25°C
96 * Max continuously current: 130mA
97 * Max boost current: 2A, 1 second
98
99 (% style="color:#037691" %)**Power Consumption**
100
101 * Sleep Mode: 5uA @ 3.3v
102 * LoRa Transmit Mode: 125mA @ 20dBm, 82mA @ 14dBm
103
104
105
106 == 1.4 Applications ==
107
108
109 * Horizontal distance measurement
110 * Parking management system
111 * Object proximity and presence detection
112 * Intelligent trash can management system
113 * Robot obstacle avoidance
114 * Automatic control
115 * Sewer
116
117
118
119 (% style="display:none" %)
120
121 == 1.5 Sleep mode and working mode ==
122
123
124 (% 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.
125
126 (% 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.
127
128
129 == 1.6 Button & LEDs ==
130
131
132 [[image:Main.User Manual for LoRaWAN End Nodes.D20-LBD22-LBD23-LB_LoRaWAN_Temperature_Sensor_User_Manual.WebHome@1675071855856-879.png]]
133
134
135 (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
136 |=(% 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**
137 |(% style="width:167px" %)Pressing ACT between 1s < time < 3s|(% style="width:117px" %)Send an uplink|(% style="width:225px" %)(((
138 If sensor is already Joined to LoRaWAN network, sensor will send an uplink packet, (% style="color:blue" %)**blue led** (%%)will blink once.
139 Meanwhile, BLE module will be active and user can connect via BLE to configure device.
140 )))
141 |(% style="width:167px" %)Pressing ACT for more than 3s|(% style="width:117px" %)Active Device|(% style="width:225px" %)(((
142 (% 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.
143 (% style="color:green" %)**Green led**(%%) will solidly turn on for 5 seconds after joined in network.
144 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.
145 )))
146 |(% 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.
147
148
149
150 == 1.7 BLE connection ==
151
152
153 LDS12-LB support BLE remote configure.
154
155 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:
156
157 * Press button to send an uplink
158 * Press button to active device.
159 * Device Power on or reset.
160
161 If there is no activity connection on BLE in 60 seconds, sensor will shut down BLE module to enter low power mode.
162
163
164 == 1.8 Pin Definitions ==
165
166 [[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"]]
167
168
169 == 1.9 Mechanical ==
170
171
172 [[image:Main.User Manual for LoRaWAN End Nodes.D20-LBD22-LBD23-LB_LoRaWAN_Temperature_Sensor_User_Manual.WebHome@1675143884058-338.png]]
173
174
175 [[image:Main.User Manual for LoRaWAN End Nodes.D20-LBD22-LBD23-LB_LoRaWAN_Temperature_Sensor_User_Manual.WebHome@1675143899218-599.png]]
176
177
178 [[image:Main.User Manual for LoRaWAN End Nodes.D20-LBD22-LBD23-LB_LoRaWAN_Temperature_Sensor_User_Manual.WebHome@1675143909447-639.png]]
179
180
181 (% style="color:blue" %)**Probe Mechanical:**
182
183
184 [[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"]]
185
186
187 = 2. Configure LDS12-LB to connect to LoRaWAN network =
188
189 == 2.1 How it works ==
190
191
192 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.
193
194 (% style="display:none" %) (%%)
195
196 == 2.2 ​Quick guide to connect to LoRaWAN server (OTAA) ==
197
198
199 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.
200
201 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.
202
203 [[image:image-20230615153004-2.png||height="459" width="800"]](% style="display:none" %)
204
205
206 (% style="color:blue" %)**Step 1:**(%%) Create a device in TTN with the OTAA keys from LDS12-LB.
207
208 Each LDS12-LB is shipped with a sticker with the default device EUI as below:
209
210 [[image:image-20230426084152-1.png||alt="图片-20230426084152-1.png" height="233" width="502"]]
211
212
213 You can enter this key in the LoRaWAN Server portal. Below is TTN screen shot:
214
215
216 (% style="color:blue" %)**Register the device**
217
218 [[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"]]
219
220
221 (% style="color:blue" %)**Add APP EUI and DEV EUI**
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-20220611161308-4.png?width=753&height=551&rev=1.1||alt="图片-20220611161308-4.png"]]
224
225
226 (% style="color:blue" %)**Add APP EUI in the application**
227
228
229 [[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"]]
230
231
232 (% style="color:blue" %)**Add APP KEY**
233
234 [[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"]]
235
236
237 (% style="color:blue" %)**Step 2:**(%%) Activate on LDS12-LB
238
239
240 Press the button for 5 seconds to activate the LDS12-LB.
241
242 (% 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.
243
244 After join success, it will start to upload messages to TTN and you can see the messages in the panel.
245
246
247 == 2.3 ​Uplink Payload ==
248
249
250 (((
251 LDS12-LB will uplink payload via LoRaWAN with below payload format: 
252 )))
253
254 (((
255 Uplink payload includes in total 11 bytes.
256 )))
257
258 (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
259 |=(% style="width: 62.5px;background-color:#4F81BD;color:white" %)(((
260 **Size(bytes)**
261 )))|=(% 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**
262 |(% style="width:62.5px" %)Value|(% style="width:62.5px" %)[[BAT>>||anchor="H2.3.1BatteryInfo"]]|(% style="width:62.5px" %)(((
263 [[Temperature DS18B20>>||anchor="H2.3.2DS18B20Temperaturesensor"]]
264 )))|[[Distance>>||anchor="H2.3.3Distance"]]|[[Distance signal strength>>||anchor="H2.3.4Distancesignalstrength"]]|(((
265 [[Interrupt flag>>||anchor="H2.3.5InterruptPin"]]
266 )))|[[LiDAR temp>>||anchor="H2.3.6LiDARtemp"]]|(((
267 [[Message Type>>||anchor="H2.3.7MessageType"]]
268 )))
269
270 [[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"]]
271
272
273 === 2.3.1 Battery Info ===
274
275
276 Check the battery voltage for LDS12-LB.
277
278 Ex1: 0x0B45 = 2885mV
279
280 Ex2: 0x0B49 = 2889mV
281
282
283 === 2.3.2 DS18B20 Temperature sensor ===
284
285
286 This is optional, user can connect external DS18B20 sensor to the +3.3v, 1-wire and GND pin . and this field will report temperature.
287
288
289 **Example**:
290
291 If payload is: 0105H:  (0105 & FC00 == 0), temp = 0105H /10 = 26.1 degree
292
293 If payload is: FF3FH :  (FF3F & FC00 == 1) , temp = (FF3FH - 65536)/10 = -19.3 degrees.
294
295
296 === 2.3.3 Distance ===
297
298
299 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.
300
301
302 **Example**:
303
304 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.
305
306
307 === 2.3.4 Distance signal strength ===
308
309
310 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.
311
312
313 **Example**:
314
315 If payload is: 01D7(H)=471(D), distance signal strength=471, 471>100,471≠65535, the measured value of Dist is considered credible.
316
317 Customers can judge whether they need to adjust the environment based on the signal strength.
318
319
320 === 2.3.5 Interrupt Pin ===
321
322
323 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.
324
325 Note: The Internet Pin is a separate pin in the screw terminal. See [[pin mapping>>||anchor="H1.8PinDefinitions"]].
326
327 **Example:**
328
329 0x00: Normal uplink packet.
330
331 0x01: Interrupt Uplink Packet.
332
333
334 === 2.3.6 LiDAR temp ===
335
336
337 Characterize the internal temperature value of the sensor.
338
339 **Example: **
340 If payload is: 1C(H) <<24>>24=28(D),LiDAR temp=28℃.
341 If payload is: F2(H) <<24>>24=-14(D),LiDAR temp=-14℃.
342
343
344 === 2.3.7 Message Type ===
345
346
347 (((
348 For a normal uplink payload, the message type is always 0x01.
349 )))
350
351 (((
352 Valid Message Type:
353 )))
354
355 (% border="1" cellspacing="5" style="background-color:#f2f2f2; width:499px" %)
356 |=(% 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**
357 |(% style="width:160px" %)0x01|(% style="width:163px" %)Normal Uplink|(% style="width:173px" %)[[Normal Uplink Payload>>||anchor="H2.3200BUplinkPayload"]]
358 |(% style="width:160px" %)0x02|(% style="width:163px" %)Reply configures info|(% style="width:173px" %)[[Configure Info Payload>>||anchor="H3.ConfigureLDS12-LB"]]
359
360
361
362 === 2.3.8 Decode payload in The Things Network ===
363
364
365 While using TTN network, you can add the payload format to decode the payload.
366
367 [[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"]]
368
369
370 (((
371 The payload decoder function for TTN is here:
372 )))
373
374 (((
375 LDS12-LB TTN Payload Decoder:  [[https:~~/~~/github.com/dragino/dragino-end-node-decoder>>https://github.com/dragino/dragino-end-node-decoder]]
376 )))
377
378
379 == 2.4 Uplink Interval ==
380
381
382 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"]]
383
384
385 == 2.5 ​Show Data in DataCake IoT Server ==
386
387
388 (((
389 [[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:
390 )))
391
392
393 (((
394 (% style="color:blue" %)**Step 1**(%%)**: Be sure that your device is programmed and properly connected to the network at this time.**
395 )))
396
397 (((
398 (% 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:**
399 )))
400
401
402 [[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"]]
403
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/1654592800389-571.png?rev=1.1||alt="1654592800389-571.png"]]
406
407
408 (% style="color:blue" %)**Step 3**(%%)**: Create an account or log in Datacake.**
409
410 (% style="color:blue" %)**Step 4**(%%)**: Search the LDS12-LB and add DevEUI.**
411
412 [[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"]]
413
414
415 After added, the sensor data arrive TTN V3, it will also arrive and show in Datacake.
416
417 [[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"]]
418
419
420 == 2.6 Datalog Feature ==
421
422
423 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.
424
425
426 === 2.6.1 Ways to get datalog via LoRaWAN ===
427
428
429 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.
430
431 * (((
432 a) LDS12-LB will do an ACK check for data records sending to make sure every data arrive server.
433 )))
434 * (((
435 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.
436 )))
437
438 Below is the typical case for the auto-update datalog feature (Set PNACKMD=1)
439
440 [[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"]]
441
442
443 === 2.6.2 Unix TimeStamp ===
444
445
446 LDS12-LB uses Unix TimeStamp format based on
447
448 [[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"]]
449
450 User can get this time from link:  [[https:~~/~~/www.epochconverter.com/>>url:https://www.epochconverter.com/]] :
451
452 Below is the converter example
453
454 [[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"]]
455
456
457 So, we can use AT+TIMESTAMP=1611889405 or downlink 3060137afd00 to set the current time 2021 – Jan ~-~- 29 Friday 03:03:25
458
459
460 === 2.6.3 Set Device Time ===
461
462
463 User need to set (% style="color:blue" %)**SYNCMOD=1**(%%) to enable sync time via MAC command.
464
465 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).
466
467 (% 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.**
468
469
470 === 2.6.4 Poll sensor value ===
471
472
473 Users can poll sensor values based on timestamps. Below is the downlink command.
474
475 (% border="1" cellspacing="5" style="background-color:#f2f2f2; width:425.818px" %)
476 |(% colspan="4" style="background-color:#d9e2f3; color:#0070c0; width:423px" %)**Downlink Command to poll Open/Close status (0x31)**
477 |(% style="width:58px" %)**1byte**|(% style="width:127px" %)**4bytes**|(% style="width:124px" %)**4bytes**|(% style="width:114px" %)**1byte**
478 |(% style="width:58px" %)31|(% style="width:127px" %)Timestamp start|(% style="width:124px" %)Timestamp end|(% style="width:114px" %)Uplink Interval
479
480 (((
481 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.
482 )))
483
484 (((
485 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"]]
486 )))
487
488 (((
489 Is to check 2021/11/12 12:00:00 to 2021/11/12 15:00:00's data
490 )))
491
492 (((
493 Uplink Internal =5s，means LDS12-LB will send one packet every 5s. range 5~~255s.
494 )))
495
496
497 == 2.7 Frequency Plans ==
498
499
500 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.
501
502 [[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/End%20Device%20Frequency%20Band/>>http://wiki.dragino.com/xwiki/bin/view/Main/End%20Device%20Frequency%20Band/]]
503
504
505 == 2.8 LiDAR ToF Measurement ==
506
507 === 2.8.1 Principle of Distance Measurement ===
508
509
510 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.
511
512 [[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"]]
513
514
515 === 2.8.2 Distance Measurement Characteristics ===
516
517
518 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:
519
520 [[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"]]
521
522
523 (((
524 (% style="color:blue" %)**① **(%%)Represents the detection blind zone of The LiDAR probe, 0-10cm, within which the output data is unreliable.
525 )))
526
527 (((
528 (% style="color:blue" %)**② **(%%)Represents the operating range of The LiDAR probe detecting black target with 10% reflectivity, 0.1-5m.
529 )))
530
531 (((
532 (% style="color:blue" %)**③ **(%%)Represents the operating range of The LiDAR probe detecting white target with 90% reflectivity, 0.1-12m.
533 )))
534
535
536 (((
537 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:
538 )))
539
540 [[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"]]
541
542 (((
543 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.
544 )))
545
546 [[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"]]
547
548 (((
549 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.
550 )))
551
552
553 === 2.8.3 Notice of usage ===
554
555
556 Possible invalid /wrong reading for LiDAR ToF tech:
557
558 * Measure high reflectivity object such as: Mirror, Smooth ceramic tile, static milk surface, will have possible wrong readings.
559 * While there is transparent object such as glass, water drop between the measured object and the LiDAR sensor, the reading might be wrong.
560 * The LiDAR probe is cover by dirty things; the reading might be wrong. In this case, need to clean the probe.
561 * The sensor window is made by Acrylic. Don't touch it with alcohol material. This will destroy the sensor window.
562
563
564
565 === 2.8.4  Reflectivity of different objects ===
566
567
568 (% border="1" cellspacing="5" style="background-color:#f2f2f2; width:379px" %)
569 |=(% 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
570 |(% style="width:53px" %)1|(% style="width:229px" %)Black foam rubber|(% style="width:93px" %)2.4%
571 |(% style="width:53px" %)2|(% style="width:229px" %)Black fabric|(% style="width:93px" %)3%
572 |(% style="width:53px" %)3|(% style="width:229px" %)Black rubber|(% style="width:93px" %)4%
573 |(% style="width:53px" %)4|(% style="width:229px" %)Coal (different types of coal)|(% style="width:93px" %)4~~8%
574 |(% style="width:53px" %)5|(% style="width:229px" %)Black car paint|(% style="width:93px" %)5%
575 |(% style="width:53px" %)6|(% style="width:229px" %)Black Jam|(% style="width:93px" %)10%
576 |(% style="width:53px" %)7|(% style="width:229px" %)Opaque black plastic|(% style="width:93px" %)14%
577 |(% style="width:53px" %)8|(% style="width:229px" %)Clean rough board|(% style="width:93px" %)20%
578 |(% style="width:53px" %)9|(% style="width:229px" %)Translucent plastic bottle|(% style="width:93px" %)62%
579 |(% style="width:53px" %)10|(% style="width:229px" %)Carton cardboard|(% style="width:93px" %)68%
580 |(% style="width:53px" %)11|(% style="width:229px" %)Clean pine|(% style="width:93px" %)70%
581 |(% style="width:53px" %)12|(% style="width:229px" %)Opaque white plastic|(% style="width:93px" %)87%
582 |(% style="width:53px" %)13|(% style="width:229px" %)White Jam|(% style="width:93px" %)90%
583 |(% style="width:53px" %)14|(% style="width:229px" %)Kodak Standard Whiteboard|(% style="width:93px" %)100%
584 |(% style="width:53px" %)15|(% style="width:229px" %)(((
585 Unpolished white metal surface
586 )))|(% style="width:93px" %)130%
587 |(% style="width:53px" %)16|(% style="width:229px" %)Glossy light metal surface|(% style="width:93px" %)150%
588 |(% style="width:53px" %)17|(% style="width:229px" %)stainless steel|(% style="width:93px" %)200%
589 |(% style="width:53px" %)18|(% style="width:229px" %)Reflector plate, reflective tape|(% style="width:93px" %)>300%
590
591
592
593 = 3. Configure LDS12-LB =
594
595 == 3.1 Configure Methods ==
596
597
598 LDS12-LB supports below configure method:
599
600 * AT Command via Bluetooth Connection (**Recommended**): [[BLE Configure Instruction>>http://wiki.dragino.com/xwiki/bin/view/Main/BLE%20Bluetooth%20Remote%20Configure/]].
601
602 * 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]].
603
604 * LoRaWAN Downlink.  Instruction for different platforms: See [[IoT LoRaWAN Server>>http://wiki.dragino.com/xwiki/bin/view/Main/]] section.
605
606
607
608 == 3.2 General Commands ==
609
610
611 These commands are to configure:
612
613 * General system settings like: uplink interval.
614
615 * LoRaWAN protocol & radio related command.
616
617 They are same for all Dragino Devices which support DLWS-005 LoRaWAN Stack. These commands can be found on the wiki:
618
619 [[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/]]
620
621
622 == 3.3 Commands special design for LDS12-LB ==
623
624
625 These commands only valid for LDS12-LB, as below:
626
627
628 === 3.3.1 Set Transmit Interval Time ===
629
630
631 (((
632 Feature: Change LoRaWAN End Node Transmit Interval.
633 )))
634
635 (((
636 (% style="color:blue" %)**AT Command: AT+TDC**
637 )))
638
639 (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
640 |=(% 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**
641 |(% style="width:156px" %)AT+TDC=?|(% style="width:137px" %)Show current transmit Interval|(((
642 30000
643 OK
644 the interval is 30000ms = 30s
645 )))
646 |(% style="width:156px" %)AT+TDC=60000|(% style="width:137px" %)Set Transmit Interval|(((
647 OK
648 Set transmit interval to 60000ms = 60 seconds
649 )))
650
651 (((
652 (% style="color:blue" %)**Downlink Command: 0x01**
653 )))
654
655 (((
656 Format: Command Code (0x01) followed by 3 bytes time value.
657 )))
658
659 (((
660 If the downlink payload=0100003C, it means set the END Node's Transmit Interval to 0x00003C=60(S), while type code is 01.
661 )))
662
663 * (((
664 Example 1: Downlink Payload: 0100001E  ~/~/ Set Transmit Interval (TDC) = 30 seconds
665 )))
666 * (((
667 Example 2: Downlink Payload: 0100003C  ~/~/ Set Transmit Interval (TDC) = 60 seconds 
668
669
670
671 )))
672
673 === 3.3.2 Set Interrupt Mode ===
674
675
676 Feature, Set Interrupt mode for PA8 of pin.
677
678 When AT+INTMOD=0 is set, PA8 is used as a digital input port.
679
680 (% style="color:blue" %)**AT Command: AT+INTMOD**
681
682 (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
683 |=(% 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**
684 |(% style="width:154px" %)AT+INTMOD=?|(% style="width:196px" %)Show current interrupt mode|(% style="width:157px" %)(((
685 0
686 OK
687 the mode is 0 =Disable Interrupt
688 )))
689 |(% style="width:154px" %)AT+INTMOD=2|(% style="width:196px" %)(((
690 Set Transmit Interval
691 0. (Disable Interrupt),
692 ~1. (Trigger by rising and falling edge)
693 2. (Trigger by falling edge)
694 3. (Trigger by rising edge)
695 )))|(% style="width:157px" %)OK
696
697 (% style="color:blue" %)**Downlink Command: 0x06**
698
699 Format: Command Code (0x06) followed by 3 bytes.
700
701 This means that the interrupt mode of the end node is set to 0x000003=3 (rising edge trigger), and the type code is 06.
702
703 * Example 1: Downlink Payload: 06000000  ~/~/  Turn off interrupt mode
704
705 * Example 2: Downlink Payload: 06000003  ~/~/  Set the interrupt mode to rising edge trigger
706
707
708
709 === 3.3.3 Get Firmware Version Info ===
710
711
712 Feature: use downlink to get firmware version.
713
714 (% style="color:blue" %)**Downlink Command: 0x26**
715
716 (% border="1" cellspacing="5" style="background-color:#f2f2f2; width:492px" %)
717 |(% 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)**
718 |(% style="width:191px" %)Get Firmware Version Info|(% style="width:57px" %)Any|(% style="width:91px" %)26|(% style="width:151px" %)2
719
720 * Reply to the confirmation package: 26 01
721 * Reply to non-confirmed packet: 26 00
722
723 Device will send an uplink after got this downlink command. With below payload:
724
725 Configures info payload:
726
727 (% border="1" cellspacing="5" style="background-color:#f2f2f2; width:510px" %)
728 |=(% style="background-color:#4F81BD;color:white" %)(((
729 **Size(bytes)**
730 )))|=(% 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**
731 |**Value**|Software Type|(((
732 Frequency Band
733 )))|Sub-band|(((
734 Firmware Version
735 )))|Sensor Type|Reserve|(((
736 [[Message Type>>||anchor="H2.3.7MessageType"]]
737 Always 0x02
738 )))
739
740 (% style="color:#037691" %)**Software Type**(%%): Always 0x03 for LLDS12
741
742 (% style="color:#037691" %)**Frequency Band**:
743
744 0x01: EU868
745
746 0x02: US915
747
748 0x03: IN865
749
750 0x04: AU915
751
752 0x05: KZ865
753
754 0x06: RU864
755
756 0x07: AS923
757
758 0x08: AS923-1
759
760 0x09: AS923-2
761
762 0xa0: AS923-3
763
764
765 (% style="color:#037691" %)**Sub-Band**(%%): value 0x00 ~~ 0x08
766
767 (% style="color:#037691" %)**Firmware Version**(%%): 0x0100, Means: v1.0.0 version
768
769 (% style="color:#037691" %)**Sensor Type**:
770
771 0x01: LSE01
772
773 0x02: LDDS75
774
775 0x03: LDDS20
776
777 0x04: LLMS01
778
779 0x05: LSPH01
780
781 0x06: LSNPK01
782
783 0x07: LLDS12
784
785
786 = 4. Battery & Power Consumption =
787
788
789 LDS12-LB use ER26500 + SPC1520 battery pack. See below link for detail information about the battery info and how to replace.
790
791 [[**Battery Info & Power Consumption Analyze**>>http://wiki.dragino.com/xwiki/bin/view/Main/How%20to%20calculate%20the%20battery%20life%20of%20Dragino%20sensors%3F/]] .
792
793
794 = 5. OTA Firmware update =
795
796
797 (% class="wikigeneratedid" %)
798 User can change firmware LDS12-LB to:
799
800 * Change Frequency band/ region.
801
802 * Update with new features.
803
804 * Fix bugs.
805
806 Firmware and changelog can be downloaded from : **[[Firmware download link>>url:https://www.dropbox.com/sh/w1p7ukjrx49e62r/AAB3uCNCt-koYUvMkZUPBRSca?dl=0]]**
807
808 Methods to Update Firmware:
809
810 * (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/]]**
811
812 * 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]]**.
813
814
815
816 = 6. FAQ =
817
818 == 6.1 What is the frequency plan for LDS12-LB? ==
819
820
821 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"]]
822
823
824 = 7. Trouble Shooting =
825
826 == 7.1 AT Command input doesn't work ==
827
828
829 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.
830
831
832 == 7.2 Significant error between the output distant value of LiDAR and actual distance ==
833
834
835 (((
836 (% 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.)
837 )))
838
839 (((
840 (% style="color:red" %)**Troubleshooting**(%%): Please avoid use of this product under such circumstance in practice.
841 )))
842
843
844 (((
845 (% style="color:blue" %)**Cause ②**(%%)**: **The IR-pass filters are blocked.
846 )))
847
848 (((
849 (% style="color:red" %)**Troubleshooting**(%%): please use dry dust-free cloth to gently remove the foreign matter.
850 )))
851
852
853 = 8. Order Info =
854
855
856 Part Number: (% style="color:blue" %)**LDS12-LB-XXX**
857
858 (% style="color:red" %)**XXX**(%%): **The default frequency band**
859
860 * (% style="color:red" %)**AS923**(%%): LoRaWAN AS923 band
861
862 * (% style="color:red" %)**AU915**(%%): LoRaWAN AU915 band
863
864 * (% style="color:red" %)**EU433**(%%): LoRaWAN EU433 band
865
866 * (% style="color:red" %)**EU868**(%%): LoRaWAN EU868 band
867
868 * (% style="color:red" %)**KR920**(%%): LoRaWAN KR920 band
869
870 * (% style="color:red" %)**US915**(%%): LoRaWAN US915 band
871
872 * (% style="color:red" %)**IN865**(%%): LoRaWAN IN865 band
873
874 * (% style="color:red" %)**CN470**(%%): LoRaWAN CN470 band
875
876
877
878 = 9. ​Packing Info =
879
880
881 (% style="color:#037691" %)**Package Includes**:
882
883 * LDS12-LB LoRaWAN LiDAR ToF Distance Sensor x 1
884
885 (% style="color:#037691" %)**Dimension and weight**:
886
887 * Device Size: cm
888
889 * Device Weight: g
890
891 * Package Size / pcs : cm
892
893 * Weight / pcs : g
894
895
896
897 = 10. Support =
898
899
900 * 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.
901
902 * 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]].