Version 114.1 by Xiaoling on 2022/06/10 15:08
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1 (% style="text-align:center" %)
2 [[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LLDS12-LoRaWAN%20LiDAR%20ToF%20Distance%20Sensor%20User%20Manual/WebHome/image-20220610095606-1.png?rev=1.1||alt="image-20220610095606-1.png"]]
3
4
5 **Contents:**
6
7 * [[1.  Introduction>>path:#H1.A0Introduction]]
8 ** [[1.1 ​ What is LoRaWAN LiDAR ToF Distance Sensor>>path:#H1.1200BWhatisLoRaWANLiDARToFDistanceSensor]]
9 ** [[​1.2  Features>>path:#H200B1.2A0Features]]
10 ** [[1.3  Probe Specification>>path:#H1.3A0ProbeSpecification]]
11 ** [[1.4  Probe Dimension>>path:#H1.4A0ProbeDimension]]
12 ** [[1.5 ​ Applications>>path:#H1.5200BApplications]]
13 ** [[1.6  Pin mapping and power on>>path:#H1.6A0Pinmappingandpoweron]]
14 * [[2.  Configure LLDS12 to connect to LoRaWAN network>>path:#H2.A0ConfigureLLDS12toconnecttoLoRaWANnetwork]]
15 ** [[2.1  How it works>>path:#H2.1A0Howitworks]]
16 ** [[2.2  ​Quick guide to connect to LoRaWAN server (OTAA)>>path:#H2.2A0200BQuickguidetoconnecttoLoRaWANserver28OTAA29]]
17 ** [[2.3  ​Uplink Payload>>path:#H2.3A0200BUplinkPayload]]
18 *** [[2.3.1  Battery Info>>path:#H2.3.1A0BatteryInfo]]
19 *** [[2.3.2  DS18B20 Temperature sensor>>path:#H2.3.2A0DS18B20Temperaturesensor]]
20 *** [[2.3.3  Distance>>path:#H2.3.3A0Distance]]
21 *** [[2.3.4  Distance signal strength>>path:#H2.3.4A0Distancesignalstrength]]
22 *** [[2.3.5  Interrupt Pin>>path:#H2.3.5A0InterruptPin]]
23 *** [[2.3.6  LiDAR temp>>path:#H2.3.6A0LiDARtemp]]
24 *** [[2.3.7  Message Type>>path:#H2.3.7A0MessageType]]
25 *** [[2.3.8  Decode payload in The Things Network>>path:#H2.3.8A0DecodepayloadinTheThingsNetwork]]
26 ** [[2.4  Uplink Interval>>path:#H2.4A0UplinkInterval]]
27 ** [[2.5  ​Show Data in DataCake IoT Server>>path:#H2.5A0200BShowDatainDataCakeIoTServer]]
28 ** [[2.6  Frequency Plans>>path:#H2.6A0FrequencyPlans]]
29 *** [[2.6.1  EU863-870 (EU868)>>path:#H2.6.1A0EU863-87028EU86829]]
30 *** [[2.6.2  US902-928(US915)>>path:#H2.6.2A0US902-92828US91529]]
31 *** [[2.6.3  CN470-510 (CN470)>>path:#H2.6.3A0CN470-51028CN47029]]
32 *** [[2.6.4  AU915-928(AU915)>>path:#H2.6.4A0AU915-92828AU91529]]
33 *** [[2.6.5  AS920-923 & AS923-925 (AS923)>>path:#H2.6.5A0AS920-92326AS923-92528AS92329]]
34 *** [[2.6.6  KR920-923 (KR920)>>path:#H2.6.6A0KR920-92328KR92029]]
35 *** [[2.6.7  IN865-867 (IN865)>>path:#H2.6.7A0IN865-86728IN86529]]
36 ** [[2.7  LED Indicator>>path:#H2.7A0LEDIndicator]]
37 ** [[2.8  ​Firmware Change Log>>path:#H2.8A0200BFirmwareChangeLog]]
38 * [[3.  LiDAR ToF Measurement>>path:#H3.A0LiDARToFMeasurement]]
39 ** [[3.1 Principle of Distance Measurement>>path:#H3.1PrincipleofDistanceMeasurement]]
40 ** [[3.2 Distance Measurement Characteristics>>path:#H3.2DistanceMeasurementCharacteristics]]
41 ** [[3.3 Notice of usage:>>path:#H3.3Noticeofusage:]]
42 * [[4.  Configure LLDS12 via AT Command or LoRaWAN Downlink>>path:#H4.A0ConfigureLLDS12viaATCommandorLoRaWANDownlink]]
43 ** [[4.1  Set Transmit Interval Time>>path:#H4.1A0SetTransmitIntervalTime]]
44 ** [[4.2  Set Interrupt Mode>>path:#H4.2A0SetInterruptMode]]
45 ** [[4.3  Get Firmware Version Info>>path:#H4.3A0GetFirmwareVersionInfo]]
46 * [[5.  Battery & How to replace>>path:#H5.A0Battery26Howtoreplace]]
47 ** [[5.1  Battery Type>>path:#H5.1A0BatteryType]]
48 ** [[5.2  Replace Battery>>path:#H5.2A0ReplaceBattery]]
49 ** [[5.3  Power Consumption Analyze>>path:#H5.3A0PowerConsumptionAnalyze]]
50 *** [[5.3.1  ​Battery Note>>path:#H5.3.1A0200BBatteryNote]]
51 *** [[​5.3.2  Replace the battery>>path:#H200B5.3.2A0Replacethebattery]]
52 * [[6.  Use AT Command>>path:#H6.A0UseATCommand]]
53 ** [[6.1  Access AT Commands>>path:#H6.1A0AccessATCommands]]
54 * [[7.  FAQ>>path:#H7.A0FAQ]]
55 ** [[7.1  How to change the LoRa Frequency Bands/Region>>path:#H7.1A0HowtochangetheLoRaFrequencyBands2FRegion]]
56 * [[8.  Trouble Shooting>>path:#H8.A0TroubleShooting]]
57 ** [[8.1  AT Commands input doesn’t work>>path:#H8.1A0ATCommandsinputdoesn2019twork]]
58 ** [[8.2  Significant error between the output distant value of LiDAR and actual distance>>path:#H8.2A0SignificanterrorbetweentheoutputdistantvalueofLiDARandactualdistance]]
59 * [[9.  Order Info>>path:#H9.A0OrderInfo]]
60 * [[10. ​ Packing Info>>path:#H10.200BPackingInfo]]
61 * [[11.  ​Support>>path:#H11.A0200BSupport]]
62
63
64
65
66
67
68
69 = 1.  Introduction =
70
71 == 1.1 ​ What is LoRaWAN LiDAR ToF Distance Sensor ==
72
73 (((
74
75
76 (((
77 The Dragino LLDS12 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.
78 )))
79
80 (((
81 The LLDS12 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.
82 )))
83
84 (((
85 It detects the distance between the measured object and the sensor, and uploads the value via wireless to LoRaWAN IoT Server.
86 )))
87
88 (((
89 The LoRa wireless technology used in LLDS12 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.
90 )))
91
92 (((
93 LLDS12 is powered by (% style="color:blue" %)**8500mAh Li-SOCI2 battery**(%%), it is designed for long term use up to 5 years.
94 )))
95
96 (((
97 Each LLDS12 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.
98 )))
99 )))
100
101
102 [[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LLDS12-LoRaWAN%20LiDAR%20ToF%20Distance%20Sensor%20User%20Manual/WebHome/1654826306458-414.png?rev=1.1||alt="1654826306458-414.png"]]
103
104
105
106 == ​1.2  Features ==
107
108 * LoRaWAN 1.0.3 Class A
109 * Ultra-low power consumption
110 * Laser technology for distance detection
111 * Operating Range - 0.1m~~12m①
112 * Accuracy - ±5cm@(0.1-6m), ±1%@(6m-12m)
113 * Monitor Battery Level
114 * Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915/IN865
115 * AT Commands to change parameters
116 * Uplink on periodically
117 * Downlink to change configure
118 * 8500mAh Battery for long term use
119
120
121
122 == 1.3  Probe Specification ==
123
124 * Storage temperature ：-20℃~~75℃
125 * Operating temperature - -20℃~~60℃
126 * Operating Range - 0.1m~~12m①
127 * Accuracy - ±5cm@(0.1-6m), ±1%@(6m-12m)
128 * Distance resolution - 5mm
129 * Ambient light immunity - 70klux
130 * Enclosure rating - IP65
131 * Light source - LED
132 * Central wavelength - 850nm
133 * FOV - 3.6°
134 * Material of enclosure - ABS+PC
135 * Wire length - 25cm
136
137
138
139 == 1.4  Probe Dimension ==
140
141
142 [[image:/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"]]
143
144
145 == 1.5 ​ Applications ==
146
147 * Horizontal distance measurement
148 * Parking management system
149 * Object proximity and presence detection
150 * Intelligent trash can management system
151 * Robot obstacle avoidance
152 * Automatic control
153 * Sewer
154
155
156
157 == 1.6  Pin mapping and power on ==
158
159
160 [[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LLDS12-LoRaWAN%20LiDAR%20ToF%20Distance%20Sensor%20User%20Manual/WebHome/1654827332142-133.png?rev=1.1||alt="1654827332142-133.png"]]
161
162
163 = 2.  Configure LLDS12 to connect to LoRaWAN network =
164
165 == 2.1  How it works ==
166
167 (((
168 The LLDS12 is configured as 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 power on the LLDS12. It will automatically join the network via OTAA and start to send the sensor value. The default uplink interval is 20 minutes.
169 )))
170
171 (((
172 In case you can’t set the OTAA keys in the LoRaWAN OTAA server, and you have to use the keys from the server, you can [[use AT Commands >>path:#H6.A0UseATCommand]]to set the keys in the LLDS12.
173 )))
174
175
176 == 2.2  ​Quick guide to connect to LoRaWAN server (OTAA) ==
177
178 (((
179 Following is an example for how to join the [[TTN v3 LoRaWAN Network>>url:https://console.cloud.thethings.network/]]. Below is the network structure; we use the [[LG308>>url:http://www.dragino.com/products/lora/item/140-lg308.html]] as a LoRaWAN gateway in this example.
180 )))
181
182 (((
183 [[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LLDS12-LoRaWAN%20LiDAR%20ToF%20Distance%20Sensor%20User%20Manual/WebHome/1654827857527-556.png?rev=1.1||alt="1654827857527-556.png"]]
184 )))
185
186 (((
187 The LG308 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.
188 )))
189
190 (((
191 (% style="color:blue" %)**Step 1**(%%): Create a device in TTN with the OTAA keys from LSPH01.
192 )))
193
194 (((
195 Each LSPH01 is shipped with a sticker with the default device EUI as below:
196 )))
197
198 [[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LLDS12-LoRaWAN%20LiDAR%20ToF%20Distance%20Sensor%20User%20Manual/WebHome/image-20220607170145-1.jpeg?rev=1.1||alt="image-20220607170145-1.jpeg"]]
199
200
201
202 You can enter this key in the LoRaWAN Server portal. Below is TTN screen shot:
203
204
205 **Register the device**
206
207
208 [[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LLDS12-LoRaWAN%20LiDAR%20ToF%20Distance%20Sensor%20User%20Manual/WebHome/1654592600093-601.png?rev=1.1||alt="1654592600093-601.png"]]
209
210
211
212 **Add APP EUI and DEV EUI**
213
214 [[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LLDS12-LoRaWAN%20LiDAR%20ToF%20Distance%20Sensor%20User%20Manual/WebHome/1654592619856-881.png?rev=1.1||alt="1654592619856-881.png"]]
215
216
217
218 **Add APP EUI in the application**
219
220 [[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LLDS12-LoRaWAN%20LiDAR%20ToF%20Distance%20Sensor%20User%20Manual/WebHome/1654592632656-512.png?rev=1.1||alt="1654592632656-512.png"]]
221
222
223
224 **Add APP KEY**
225
226 [[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LLDS12-LoRaWAN%20LiDAR%20ToF%20Distance%20Sensor%20User%20Manual/WebHome/1654592653453-934.png?rev=1.1||alt="1654592653453-934.png"]]
227
228
229 (% style="color:blue" %)**Step 2**(%%): Power on LLDS12
230
231
232 Put a Jumper on JP2 to power on the device. ( The Switch must be in FLASH position).
233
234 [[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LLDS12-LoRaWAN%20LiDAR%20ToF%20Distance%20Sensor%20User%20Manual/WebHome/image-20220607170442-2.png?rev=1.1||alt="image-20220607170442-2.png"]]
235
236
237 (((
238 (% style="color:blue" %)**Step 3**(%%)**:** The LLDS12 will auto join to the TTN network. After join success, it will start to upload messages to TTN and you can see the messages in the panel.
239 )))
240
241 [[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LLDS12-LoRaWAN%20LiDAR%20ToF%20Distance%20Sensor%20User%20Manual/WebHome/1654833501679-968.png?rev=1.1||alt="1654833501679-968.png"]]
242
243
244
245 == 2.3  ​Uplink Payload ==
246
247 (((
248 LLDS12 will uplink payload via LoRaWAN with below payload format: 
249 )))
250
251 (((
252 Uplink payload includes in total 11 bytes.
253 )))
254
255 (((
256
257 )))
258
259 (% border="1" cellspacing="10" style="background-color:#ffffcc; width:510px" %)
260 |=(% style="width: 62.5px;" %)(((
261 **Size (bytes)**
262 )))|=(% style="width: 62.5px;" %)**2**|=(% style="width: 62.5px;" %)**2**|=**2**|=**2**|=**1**|=**1**|=**1**
263 |(% style="width:62.5px" %)**Value**|(% style="width:62.5px" %)[[BAT>>path:#H2.3.1A0BatteryInfo]]|(% style="width:62.5px" %)(((
264 [[Temperature DS18B20>>path:#H2.3.2A0DS18B20Temperaturesensor]]
265 )))|[[Distance>>path:#H2.3.3A0Distance]]|[[Distance signal strength>>path:#H2.3.4A0Distancesignalstrength]]|(((
266 [[Interrupt flag>>path:#H2.3.5A0InterruptPin]]
267 )))|[[LiDAR temp>>path:#H2.3.6A0LiDARtemp]]|(((
268 [[Message Type>>path:#H2.3.7A0MessageType]]
269 )))
270
271 [[image:/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"]]
272
273
274
275 === 2.3.1  Battery Info ===
276
277
278 Check the battery voltage for LLDS12.
279
280 Ex1: 0x0B45 = 2885mV
281
282 Ex2: 0x0B49 = 2889mV
283
284
285
286 === 2.3.2  DS18B20 Temperature sensor ===
287
288 This is optional, user can connect external DS18B20 sensor to the +3.3v, 1-wire and GND pin . and this field will report temperature.
289
290
291 **Example**:
292
293 If payload is: 0105H:  (0105 & FC00 == 0), temp = 0105H /10 = 26.1 degree
294
295 If payload is: FF3FH :  (FF3F & FC00 == 1) , temp = (FF3FH - 65536)/10 = -19.3 degrees.
296
297
298
299 === 2.3.3  Distance ===
300
301 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.
302
303
304 **Example**:
305
306 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.
307
308
309
310 === 2.3.4  Distance signal strength ===
311
312 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.
313
314
315 **Example**:
316
317 If payload is: 01D7(H)=471(D), distance signal strength=471, 471>100,471≠65535, the measured value of Dist is considered credible.
318
319 Customers can judge whether they need to adjust the environment based on the signal strength.
320
321
322
323 === 2.3.5  Interrupt Pin ===
324
325 This data field shows if this packet is generated by interrupt or not. [[Click here>>path:#H4.2A0SetInterruptMode]] for the hardware and software set up.
326
327 Note: The Internet Pin is a separate pin in the screw terminal. See [[pin mapping>>path:#H1.6A0Pinmappingandpoweron]].
328
329 **Example:**
330
331 0x00: Normal uplink packet.
332
333 0x01: Interrupt Uplink Packet.
334
335
336
337 === 2.3.6  LiDAR temp ===
338
339 Characterize the internal temperature value of the sensor.
340
341 **Example: **
342 If payload is: 1C(H) <<24>>24=28(D),LiDAR temp=28℃.
343 If payload is: F2(H) <<24>>24=-14(D),LiDAR temp=-14℃.
344
345
346
347 === 2.3.7  Message Type ===
348
349 (((
350 For a normal uplink payload, the message type is always 0x01.
351 )))
352
353 (((
354 Valid Message Type:
355 )))
356
357
358 (% border="1" cellspacing="10" style="background-color:#ffffcc; width:499px" %)
359 |=(% style="width: 160px;" %)**Message Type Code**|=(% style="width: 163px;" %)**Description**|=(% style="width: 173px;" %)**Payload**
360 |(% style="width:160px" %)0x01|(% style="width:163px" %)Normal Uplink|(% style="width:173px" %)[[Normal Uplink Payload>>path:#H2.3A0200BUplinkPayload]]
361 |(% style="width:160px" %)0x02|(% style="width:163px" %)Reply configures info|(% style="width:173px" %)[[Configure Info Payload>>path:#H4.3A0GetFirmwareVersionInfo]]
362
363
364
365 === 2.3.8  Decode payload in The Things Network ===
366
367 While using TTN network, you can add the payload format to decode the payload.
368
369
370 [[image:/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"]]
371
372 (((
373 The payload decoder function for TTN is here:
374 )))
375
376 (((
377 LLDS12 TTN Payload Decoder: [[https:~~/~~/www.dragino.com/downloads/index.php?dir=LoRa_End_Node/LLDS12/Decoder/>>url:https://www.dragino.com/downloads/index.php?dir=LoRa_End_Node/LLDS12/Decoder/]]
378 )))
379
380
381
382 == 2.4  Uplink Interval ==
383
384 The LLDS12 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>>path:/xwiki/bin/view/Main/End%20Device%20AT%20Commands%20and%20Downlink%20Command/#H4.1ChangeUplinkInterval]]
385
386
387
388 == 2.5  ​Show Data in DataCake IoT Server ==
389
390 (((
391 [[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:
392 )))
393
394 (((
395
396 )))
397
398 (((
399 (% style="color:blue" %)**Step 1**(%%)**: Be sure that your device is programmed and properly connected to the network at this time.**
400 )))
401
402 (((
403 (% 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:**
404 )))
405
406
407 [[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LLDS12-LoRaWAN%20LiDAR%20ToF%20Distance%20Sensor%20User%20Manual/WebHome/1654592790040-760.png?rev=1.1||alt="1654592790040-760.png"]]
408
409
410 [[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LLDS12-LoRaWAN%20LiDAR%20ToF%20Distance%20Sensor%20User%20Manual/WebHome/1654592800389-571.png?rev=1.1||alt="1654592800389-571.png"]]
411
412
413 (% style="color:blue" %)**Step 3**(%%)**: Create an account or log in Datacake.**
414
415 (% style="color:blue" %)**Step 4**(%%)**: Create LLDS12 product.**
416
417 [[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LLDS12-LoRaWAN%20LiDAR%20ToF%20Distance%20Sensor%20User%20Manual/WebHome/1654832691989-514.png?rev=1.1||alt="1654832691989-514.png"]]
418
419
420 [[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LLDS12-LoRaWAN%20LiDAR%20ToF%20Distance%20Sensor%20User%20Manual/WebHome/1654592833877-762.png?rev=1.1||alt="1654592833877-762.png"]]
421
422
423 [[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LLDS12-LoRaWAN%20LiDAR%20ToF%20Distance%20Sensor%20User%20Manual/WebHome/1654832740634-933.png?rev=1.1||alt="1654832740634-933.png"]]
424
425
426
427 (((
428 (% style="color:blue" %)**Step 5**(%%)**: add payload decode**
429 )))
430
431 (((
432
433 )))
434
435 [[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LLDS12-LoRaWAN%20LiDAR%20ToF%20Distance%20Sensor%20User%20Manual/WebHome/1654833065139-942.png?rev=1.1||alt="1654833065139-942.png"]]
436
437
438
439 [[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LLDS12-LoRaWAN%20LiDAR%20ToF%20Distance%20Sensor%20User%20Manual/WebHome/1654833092678-390.png?rev=1.1||alt="1654833092678-390.png"]]
440
441
442
443 After added, the sensor data arrive TTN, it will also arrive and show in Datacake.
444
445 [[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LLDS12-LoRaWAN%20LiDAR%20ToF%20Distance%20Sensor%20User%20Manual/WebHome/1654833163048-332.png?rev=1.1||alt="1654833163048-332.png"]]
446
447
448
449 == 2.6  Frequency Plans ==
450
451 (((
452 The LLDS12 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.
453 )))
454
455
456 === 2.6.1  EU863-870 (EU868) ===
457
458 (((
459 (% style="color:blue" %)**Uplink:**
460 )))
461
462 (((
463 868.1 - SF7BW125 to SF12BW125
464 )))
465
466 (((
467 868.3 - SF7BW125 to SF12BW125 and SF7BW250
468 )))
469
470 (((
471 868.5 - SF7BW125 to SF12BW125
472 )))
473
474 (((
475 867.1 - SF7BW125 to SF12BW125
476 )))
477
478 (((
479 867.3 - SF7BW125 to SF12BW125
480 )))
481
482 (((
483 867.5 - SF7BW125 to SF12BW125
484 )))
485
486 (((
487 867.7 - SF7BW125 to SF12BW125
488 )))
489
490 (((
491 867.9 - SF7BW125 to SF12BW125
492 )))
493
494 (((
495 868.8 - FSK
496 )))
497
498 (((
499
500 )))
501
502 (((
503 (% style="color:blue" %)**Downlink:**
504 )))
505
506 (((
507 Uplink channels 1-9 (RX1)
508 )))
509
510 (((
511 869.525 - SF9BW125 (RX2 downlink only)
512 )))
513
514
515
516 === 2.6.2  US902-928(US915) ===
517
518 (((
519 Used in USA, Canada and South America. Frequency band as per definition in LoRaWAN 1.0.3 Regional document.
520 )))
521
522 (((
523 To make sure the end node supports all sub band by default. In the OTAA Join process, the end node will use frequency 1 from sub-band1, then frequency 1 from sub-band2, then frequency 1 from sub-band3, etc to process the OTAA join.
524 )))
525
526 (((
527 After Join success, the end node will switch to the correct sub band by:
528 )))
529
530 * Check what sub-band the LoRaWAN server ask from the OTAA Join Accept message and switch to that sub-band
531 * Use the Join successful sub-band if the server doesn’t include sub-band info in the OTAA Join Accept message ( TTN v2 doesn't include)
532
533
534
535 === 2.6.3  CN470-510 (CN470) ===
536
537 (((
538 Used in China, Default use CHE=1
539 )))
540
541 (((
542 (% style="color:blue" %)**Uplink:**
543 )))
544
545 (((
546 486.3 - SF7BW125 to SF12BW125
547 )))
548
549 (((
550 486.5 - SF7BW125 to SF12BW125
551 )))
552
553 (((
554 486.7 - SF7BW125 to SF12BW125
555 )))
556
557 (((
558 486.9 - SF7BW125 to SF12BW125
559 )))
560
561 (((
562 487.1 - SF7BW125 to SF12BW125
563 )))
564
565 (((
566 487.3 - SF7BW125 to SF12BW125
567 )))
568
569 (((
570 487.5 - SF7BW125 to SF12BW125
571 )))
572
573 (((
574 487.7 - SF7BW125 to SF12BW125
575 )))
576
577 (((
578
579 )))
580
581 (((
582 (% style="color:blue" %)**Downlink:**
583 )))
584
585 (((
586 506.7 - SF7BW125 to SF12BW125
587 )))
588
589 (((
590 506.9 - SF7BW125 to SF12BW125
591 )))
592
593 (((
594 507.1 - SF7BW125 to SF12BW125
595 )))
596
597 (((
598 507.3 - SF7BW125 to SF12BW125
599 )))
600
601 (((
602 507.5 - SF7BW125 to SF12BW125
603 )))
604
605 (((
606 507.7 - SF7BW125 to SF12BW125
607 )))
608
609 (((
610 507.9 - SF7BW125 to SF12BW125
611 )))
612
613 (((
614 508.1 - SF7BW125 to SF12BW125
615 )))
616
617 (((
618 505.3 - SF12BW125 (RX2 downlink only)
619 )))
620
621
622
623
624 === 2.6.4  AU915-928(AU915) ===
625
626 (((
627 Frequency band as per definition in LoRaWAN 1.0.3 Regional document.
628 )))
629
630 (((
631 To make sure the end node supports all sub band by default. In the OTAA Join process, the end node will use frequency 1 from sub-band1, then frequency 1 from sub-band2, then frequency 1 from sub-band3, etc to process the OTAA join.
632 )))
633
634 (((
635
636 )))
637
638 (((
639 After Join success, the end node will switch to the correct sub band by:
640 )))
641
642 * Check what sub-band the LoRaWAN server ask from the OTAA Join Accept message and switch to that sub-band
643 * Use the Join successful sub-band if the server doesn’t include sub-band info in the OTAA Join Accept message ( TTN v2 doesn't include)
644
645
646
647 === 2.6.5  AS920-923 & AS923-925 (AS923) ===
648
649 (((
650 (% style="color:blue" %)**Default Uplink channel:**
651 )))
652
653 (((
654 923.2 - SF7BW125 to SF10BW125
655 )))
656
657 (((
658 923.4 - SF7BW125 to SF10BW125
659 )))
660
661 (((
662
663 )))
664
665 (((
666 (% style="color:blue" %)**Additional Uplink Channel**:
667 )))
668
669 (((
670 (OTAA mode, channel added by JoinAccept message)
671 )))
672
673 (((
674
675 )))
676
677 (((
678 (% style="color:blue" %)**AS920~~AS923 for Japan, Malaysia, Singapore**:
679 )))
680
681 (((
682 922.2 - SF7BW125 to SF10BW125
683 )))
684
685 (((
686 922.4 - SF7BW125 to SF10BW125
687 )))
688
689 (((
690 922.6 - SF7BW125 to SF10BW125
691 )))
692
693 (((
694 922.8 - SF7BW125 to SF10BW125
695 )))
696
697 (((
698 923.0 - SF7BW125 to SF10BW125
699 )))
700
701 (((
702 922.0 - SF7BW125 to SF10BW125
703 )))
704
705 (((
706
707 )))
708
709 (((
710 (% style="color:blue" %)**AS923 ~~ AS925 for Brunei, Cambodia, Hong Kong, Indonesia, Laos, Taiwan, Thailand, Vietnam**:
711 )))
712
713 (((
714 923.6 - SF7BW125 to SF10BW125
715 )))
716
717 (((
718 923.8 - SF7BW125 to SF10BW125
719 )))
720
721 (((
722 924.0 - SF7BW125 to SF10BW125
723 )))
724
725 (((
726 924.2 - SF7BW125 to SF10BW125
727 )))
728
729 (((
730 924.4 - SF7BW125 to SF10BW125
731 )))
732
733 (((
734 924.6 - SF7BW125 to SF10BW125
735 )))
736
737 (((
738
739 )))
740
741 (((
742 (% style="color:blue" %)**Downlink:**
743 )))
744
745 (((
746 Uplink channels 1-8 (RX1)
747 )))
748
749 (((
750 923.2 - SF10BW125 (RX2)
751 )))
752
753
754
755
756 === 2.6.6  KR920-923 (KR920) ===
757
758 (((
759 (% style="color:blue" %)**Default channel:**
760 )))
761
762 (((
763 922.1 - SF7BW125 to SF12BW125
764 )))
765
766 (((
767 922.3 - SF7BW125 to SF12BW125
768 )))
769
770 (((
771 922.5 - SF7BW125 to SF12BW125
772 )))
773
774 (((
775
776 )))
777
778 (((
779 (% style="color:blue" %)**Uplink: (OTAA mode, channel added by JoinAccept message)**
780 )))
781
782 (((
783 922.1 - SF7BW125 to SF12BW125
784 )))
785
786 (((
787 922.3 - SF7BW125 to SF12BW125
788 )))
789
790 (((
791 922.5 - SF7BW125 to SF12BW125
792 )))
793
794 (((
795 922.7 - SF7BW125 to SF12BW125
796 )))
797
798 (((
799 922.9 - SF7BW125 to SF12BW125
800 )))
801
802 (((
803 923.1 - SF7BW125 to SF12BW125
804 )))
805
806 (((
807 923.3 - SF7BW125 to SF12BW125
808 )))
809
810 (((
811
812 )))
813
814 (((
815 (% style="color:blue" %)**Downlink:**
816 )))
817
818 (((
819 Uplink channels 1-7(RX1)
820 )))
821
822 (((
823 921.9 - SF12BW125 (RX2 downlink only; SF12BW125 might be changed to SF9BW125)
824 )))
825
826
827
828
829 === 2.6.7  IN865-867 (IN865) ===
830
831 (((
832 (% style="color:blue" %)**Uplink:**
833 )))
834
835 (((
836 865.0625 - SF7BW125 to SF12BW125
837 )))
838
839 (((
840 865.4025 - SF7BW125 to SF12BW125
841 )))
842
843 (((
844 865.9850 - SF7BW125 to SF12BW125
845 )))
846
847 (((
848
849 )))
850
851 (((
852 (% style="color:blue" %)**Downlink:**
853 )))
854
855 (((
856 Uplink channels 1-3 (RX1)
857 )))
858
859 (((
860 866.550 - SF10BW125 (RX2)
861 )))
862
863
864
865
866 == 2.7  LED Indicator ==
867
868 The LLDS12 has an internal LED which is to show the status of different state.
869
870 * The sensor is detected when the device is turned on, and it will flash 4 times quickly when it is detected.
871 * Blink once when device transmit a packet.
872
873
874
875 == 2.8  ​Firmware Change Log ==
876
877
878 **Firmware download link: **[[http:~~/~~/www.dragino.com/downloads/index.php?dir=LoRa_End_Node/LLDS12/Firmware/>>url:http://www.dragino.com/downloads/index.php?dir=LoRa_End_Node/LLDS12/Firmware/]]
879
880
881 **Firmware Upgrade Method: **[[Firmware Upgrade Instruction>>path:/xwiki/bin/view/Main/Firmware%20Upgrade%20Instruction%20for%20STM32%20base%20products/]]
882
883
884
885 = 3.  LiDAR ToF Measurement =
886
887 == 3.1 Principle of Distance Measurement ==
888
889 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.
890
891 [[image:/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"]]
892
893
894
895 == 3.2 Distance Measurement Characteristics ==
896
897 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:
898
899 [[image:/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"]]
900
901
902 (((
903 (% style="color:blue" %)**① **(%%)Represents the detection blind zone of The LiDAR probe, 0-10cm, within which the output data is unreliable.
904 )))
905
906 (((
907 (% style="color:blue" %)**② **(%%)Represents the operating range of The LiDAR probe detecting black target with 10% reflectivity, 0.1-5m.
908 )))
909
910 (((
911 (% style="color:blue" %)**③ **(%%)Represents the operating range of The LiDAR probe detecting white target with 90% reflectivity, 0.1-12m.
912 )))
913
914
915 (((
916 Vertical Coordinates: Represents the radius of light spot for The LiDAR probe at the 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:
917 )))
918
919
920 [[image:/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"]]
921
922
923 (((
924 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.
925 )))
926
927 [[image:/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"]]
928
929
930 (((
931 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.
932 )))
933
934
935
936 == 3.3 Notice of usage: ==
937
938 Possible invalid /wrong reading for LiDAR ToF tech:
939
940 * Measure high reflectivity object such as: Mirror, Smooth ceramic tile, static milk surface, will have possible wrong readings.
941 * While there is transparent object such as glass, water drop between the measured object and the LiDAR sensor, the reading might wrong.
942 * The LiDAR probe is cover by dirty things; the reading might be wrong. In this case, need to clean the probe.
943 * The sensor window is made by Acrylic. Don’t touch it with alcohol material. This will destroy the sensor window.
944
945
946
947 = 4.  Configure LLDS12 via AT Command or LoRaWAN Downlink =
948
949 (((
950 (((
951 Use can configure LLDS12 via AT Command or LoRaWAN Downlink.
952 )))
953 )))
954
955 * (((
956 (((
957 AT Command Connection: See [[FAQ>>path:#H7.A0FAQ]].
958 )))
959 )))
960 * (((
961 (((
962 LoRaWAN Downlink instruction for different platforms: [[IoT LoRaWAN Server>>path:/xwiki/bin/view/Main/]]
963 )))
964 )))
965
966 (((
967 (((
968
969 )))
970
971 (((
972 There are two kinds of commands to configure LLDS12, they are:
973 )))
974 )))
975
976 * (((
977 (((
978 (% style="color:#4f81bd" %)** General Commands**.
979 )))
980 )))
981
982 (((
983 (((
984 These commands are to configure:
985 )))
986 )))
987
988 * (((
989 (((
990 General system settings like: uplink interval.
991 )))
992 )))
993 * (((
994 (((
995 LoRaWAN protocol & radio related command.
996 )))
997 )))
998
999 (((
1000 (((
1001 They are same for all Dragino Device which support DLWS-005 LoRaWAN Stack. These commands can be found on the wiki: [[End Device AT Commands and Downlink Command>>path:/xwiki/bin/view/Main/End%20Device%20AT%20Commands%20and%20Downlink%20Command/]]
1002 )))
1003 )))
1004
1005 (((
1006 (((
1007
1008 )))
1009 )))
1010
1011 * (((
1012 (((
1013 (% style="color:#4f81bd" %)** Commands special design for LLDS12**
1014 )))
1015 )))
1016
1017 (((
1018 (((
1019 These commands only valid for LLDS12, as below:
1020 )))
1021 )))
1022
1023
1024
1025 == 4.1  Set Transmit Interval Time ==
1026
1027 Feature: Change LoRaWAN End Node Transmit Interval.
1028
1029 (% style="color:#037691" %)**AT Command: AT+TDC**
1030
1031 [[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LLDS12-LoRaWAN%20LiDAR%20ToF%20Distance%20Sensor%20User%20Manual/WebHome/image-20220607171554-8.png?rev=1.1||alt="image-20220607171554-8.png"]]
1032
1033
1034 (((
1035 (% style="color:#037691" %)**Downlink Command: 0x01**
1036 )))
1037
1038 (((
1039 Format: Command Code (0x01) followed by 3 bytes time value.
1040 )))
1041
1042 (((
1043 If the downlink payload=0100003C, it means set the END Node’s Transmit Interval to 0x00003C=60(S), while type code is 01.
1044 )))
1045
1046 * (((
1047 Example 1: Downlink Payload: 0100001E ~/~/ Set Transmit Interval (TDC) = 30 seconds
1048 )))
1049 * (((
1050 Example 2: Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds
1051
1052
1053
1054 )))
1055
1056
1057
1058 == 4.2  Set Interrupt Mode ==
1059
1060 Feature, Set Interrupt mode for GPIO_EXIT.
1061
1062 (% style="color:#037691" %)**AT Command: AT+INTMOD**
1063
1064 [[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LLDS12-LoRaWAN%20LiDAR%20ToF%20Distance%20Sensor%20User%20Manual/WebHome/image-20220610105806-2.png?rev=1.1||alt="image-20220610105806-2.png"]]
1065
1066
1067 (((
1068 (% style="color:#037691" %)**Downlink Command: 0x06**
1069 )))
1070
1071 (((
1072 Format: Command Code (0x06) followed by 3 bytes.
1073 )))
1074
1075 (((
1076 This means that the interrupt mode of the end node is set to 0x000003=3 (rising edge trigger), and the type code is 06.
1077 )))
1078
1079 * (((
1080 Example 1: Downlink Payload: 06000000 ~/~/ Turn off interrupt mode
1081 )))
1082 * (((
1083 Example 2: Downlink Payload: 06000003 ~/~/ Set the interrupt mode to rising edge trigger
1084 )))
1085
1086
1087
1088 == 4.3  Get Firmware Version Info ==
1089
1090 Feature: use downlink to get firmware version.
1091
1092 (% style="color:#037691" %)**Downlink Command: 0x26**
1093
1094 [[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LLDS12-LoRaWAN%20LiDAR%20ToF%20Distance%20Sensor%20User%20Manual/WebHome/image-20220607171917-10.png?rev=1.1||alt="image-20220607171917-10.png"]]
1095
1096 * Reply to the confirmation package: 26 01
1097 * Reply to non-confirmed packet: 26 00
1098
1099 Device will send an uplink after got this downlink command. With below payload:
1100
1101 Configures info payload:
1102
1103 (% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:510px" %)
1104 |=(((
1105 **Size(bytes)**
1106 )))|=**1**|=**1**|=**1**|=**1**|=**1**|=**5**|=**1**
1107 |**Value**|Software Type|(((
1108 Frequency
1109
1110 Band
1111 )))|Sub-band|(((
1112 Firmware
1113
1114 Version
1115 )))|Sensor Type|Reserve|(((
1116 [[Message Type>>path:#H2.3.7A0MessageType]]
1117 Always 0x02
1118 )))
1119
1120 **Software Type**: Always 0x03 for LLDS12
1121
1122
1123 **Frequency Band**:
1124
1125 *0x01: EU868
1126
1127 *0x02: US915
1128
1129 *0x03: IN865
1130
1131 *0x04: AU915
1132
1133 *0x05: KZ865
1134
1135 *0x06: RU864
1136
1137 *0x07: AS923
1138
1139 *0x08: AS923-1
1140
1141 *0x09: AS923-2
1142
1143 *0xa0: AS923-3
1144
1145
1146 **Sub-Band**: value 0x00 ~~ 0x08
1147
1148
1149 **Firmware Version**: 0x0100, Means: v1.0.0 version
1150
1151
1152 **Sensor Type**:
1153
1154 0x01: LSE01
1155
1156 0x02: LDDS75
1157
1158 0x03: LDDS20
1159
1160 0x04: LLMS01
1161
1162 0x05: LSPH01
1163
1164 0x06: LSNPK01
1165
1166 0x07: LLDS12
1167
1168
1169
1170 = 5.  Battery & How to replace =
1171
1172 == 5.1  Battery Type ==
1173
1174 (((
1175 LLDS12 is equipped with a [[8500mAH ER26500 Li-SOCI2 battery>>url:https://www.dragino.com/downloads/index.php?dir=datasheet/Battery/ER26500/]]. The battery is un-rechargeable battery with low discharge rate targeting for 8~~10 years use. This type of battery is commonly used in IoT target for long-term running, such as water meter.
1176 )))
1177
1178 (((
1179 The discharge curve is not linear so can’t simply use percentage to show the battery level. Below is the battery performance.
1180 )))
1181
1182 [[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LLDS12-LoRaWAN%20LiDAR%20ToF%20Distance%20Sensor%20User%20Manual/WebHome/1654593587246-335.png?rev=1.1||alt="1654593587246-335.png"]]
1183
1184
1185 Minimum Working Voltage for the LLDS12:
1186
1187 LLDS12:  2.45v ~~ 3.6v
1188
1189
1190
1191 == 5.2  Replace Battery ==
1192
1193 (((
1194 Any battery with range 2.45 ~~ 3.6v can be a replacement. We recommend to use Li-SOCl2 Battery.
1195 )))
1196
1197 (((
1198 And make sure the positive and negative pins match.
1199 )))
1200
1201
1202
1203 == 5.3  Power Consumption Analyze ==
1204
1205 (((
1206 Dragino Battery powered product are all runs in Low Power mode. We have an update battery calculator which base on the measurement of the real device. User can use this calculator to check the battery life and calculate the battery life if want to use different transmit interval.
1207 )))
1208
1209 (((
1210 Instruction to use as below:
1211 )))
1212
1213
1214 **Step 1**: Downlink the up-to-date DRAGINO_Battery_Life_Prediction_Table.xlsx from:
1215
1216 [[https:~~/~~/www.dragino.com/downloads/index.pHp?dir=LoRa_End_Node/Battery_Analyze/>>url:https://www.dragino.com/downloads/index.php?dir=LoRa_End_Node/Battery_Analyze/]]
1217
1218
1219 **Step 2**: Open it and choose
1220
1221 * Product Model
1222 * Uplink Interval
1223 * Working Mode
1224
1225 And the Life expectation in difference case will be shown on the right.
1226
1227 [[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LLDS12-LoRaWAN%20LiDAR%20ToF%20Distance%20Sensor%20User%20Manual/WebHome/1654593605679-189.png?rev=1.1||alt="1654593605679-189.png"]]
1228
1229
1230 The battery related documents as below:
1231
1232 * (((
1233 [[Battery Dimension>>url:http://www.dragino.com/downloads/index.php?dir=datasheet/Battery/&file=LSN50-Battery-Dimension.pdf]],
1234 )))
1235 * (((
1236 [[Lithium-Thionyl Chloride Battery  datasheet>>url:https://www.dragino.com/downloads/downloads/datasheet/Battery/ER26500/ER26500_Datasheet-EN.pdf]],
1237 )))
1238 * (((
1239 [[Lithium-ion Battery-Capacitor datasheet>>url:http://www.dragino.com/downloads/downloads/datasheet/Battery/SPC_1520_datasheet.jpg]], [[Tech Spec>>url:http://www.dragino.com/downloads/downloads/datasheet/Battery/SPC1520%20Technical%20Specification20171123.pdf]]
1240 )))
1241
1242 [[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LLDS12-LoRaWAN%20LiDAR%20ToF%20Distance%20Sensor%20User%20Manual/WebHome/image-20220607172042-11.png?rev=1.1||alt="image-20220607172042-11.png"]]
1243
1244
1245
1246 === 5.3.1  ​Battery Note ===
1247
1248 (((
1249 The Li-SICO battery is designed for small current / long period application. It is not good to use a high current, short period transmit method. The recommended minimum period for use of this battery is 5 minutes. If you use a shorter period time to transmit LoRa, then the battery life may be decreased.
1250 )))
1251
1252
1253
1254 === ​5.3.2  Replace the battery ===
1255
1256 (((
1257 You can change the battery in the LLDS12.The type of battery is not limited as long as the output is between 3v to 3.6v. On the main board, there is a diode (D1) between the battery and the main circuit. If you need to use a battery with less than 3.3v, please remove the D1 and shortcut the two pads of it so there won’t be voltage drop between battery and main board.
1258 )))
1259
1260 (((
1261 The default battery pack of LLDS12 includes a ER26500 plus super capacitor. If user can’t find this pack locally, they can find ER26500 or equivalence, which will also work in most case. The SPC can enlarge the battery life for high frequency use (update period below 5 minutes)
1262 )))
1263
1264
1265
1266 = 6.  Use AT Command =
1267
1268 == 6.1  Access AT Commands ==
1269
1270 LLDS12 supports AT Command set in the stock firmware. You can use a USB to TTL adapter to connect to LLDS12 for using AT command, as below.
1271
1272 [[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LLDS12-LoRaWAN%20LiDAR%20ToF%20Distance%20Sensor%20User%20Manual/WebHome/1654593668970-604.png?rev=1.1||alt="1654593668970-604.png"]]
1273
1274 **Connection:**
1275
1276 (% style="background-color:yellow" %)** USB TTL GND <~-~-~-~-> GND**
1277
1278 (% style="background-color:yellow" %)** USB TTL TXD  <~-~-~-~-> UART_RXD**
1279
1280 (% style="background-color:yellow" %)** USB TTL RXD  <~-~-~-~-> UART_TXD**
1281
1282
1283 (((
1284 (((
1285 In the PC, you need to set the serial baud rate to (% style="color:green" %)**9600**(%%) to access the serial console for LLDS12.
1286 )))
1287
1288 (((
1289 LLDS12 will output system info once power on as below:
1290 )))
1291 )))
1292
1293
1294 [[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LLDS12-LoRaWAN%20LiDAR%20ToF%20Distance%20Sensor%20User%20Manual/WebHome/1654593712276-618.png?rev=1.1||alt="1654593712276-618.png"]]
1295
1296 Valid AT Command please check [[Configure Device>>path:#H4.A0ConfigureLLDS12viaATCommandorLoRaWANDownlink]].
1297
1298
1299 = 7.  FAQ =
1300
1301 == 7.1  How to change the LoRa Frequency Bands/Region ==
1302
1303 You can follow the instructions for [[how to upgrade image>>path:#H2.8A0200BFirmwareChangeLog]].
1304 When downloading the images, choose the required image file for download. ​
1305
1306
1307 = 8.  Trouble Shooting =
1308
1309 == 8.1  AT Commands input doesn’t work ==
1310
1311
1312 (((
1313 In the case if user can see the console output but can’t type input to the device. Please check if you already include the (% style="color:green" %)**ENTER**(%%) while sending out the command. Some serial tool doesn’t send (% style="color:green" %)**ENTER**(%%) while press the send key, user need to add ENTER in their string.
1314 )))
1315
1316
1317 == 8.2  Significant error between the output distant value of LiDAR and actual distance ==
1318
1319
1320 (((
1321 (% 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.)
1322 )))
1323
1324 (((
1325 Troubleshooting: Please avoid use of this product under such circumstance in practice.
1326 )))
1327
1328 (((
1329
1330 )))
1331
1332 (((
1333 (% style="color:blue" %)**Cause ②**(%%)**: **The IR-pass filters are blocked.
1334 )))
1335
1336 (((
1337 Troubleshooting: please use dry dust-free cloth to gently remove the foreign matter.
1338 )))
1339
1340
1341
1342 = 9.  Order Info =
1343
1344
1345 Part Number: (% style="color:blue" %)**LLDS12-XX**
1346
1347
1348 (% style="color:blue" %)**XX**(%%): The default frequency band
1349
1350 * (% style="color:red" %)**AS923**(%%):  LoRaWAN AS923 band
1351 * (% style="color:red" %)**AU915**(%%): LoRaWAN AU915 band
1352 * (% style="color:red" %)**EU433**(%%): LoRaWAN EU433 band
1353 * (% style="color:red" %)**EU868**(%%): LoRaWAN EU868 band
1354 * (% style="color:red" %)**KR920**(%%): LoRaWAN KR920 band
1355 * (% style="color:red" %)**US915**(%%): LoRaWAN US915 band
1356 * (% style="color:red" %)**IN865**(%%):  LoRaWAN IN865 band
1357 * (% style="color:red" %)**CN470**(%%): LoRaWAN CN470 band
1358
1359
1360
1361 = 10. ​ Packing Info =
1362
1363
1364 **Package Includes**:
1365
1366 * LLDS12 LoRaWAN LiDAR Distance Sensor x 1
1367
1368 **Dimension and weight**:
1369
1370 * Device Size: cm
1371 * Device Weight: g
1372 * Package Size / pcs : cm
1373 * Weight / pcs : g
1374
1375
1376
1377 = 11.  ​Support =
1378
1379 * 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.
1380 * Provide as much information as possible regarding your enquiry (product models, accurately describe your problem and steps to replicate it etc) and send a mail to [[support@dragino.com>>url:http://../../../../../../D:%5C%E5%B8%82%E5%9C%BA%E8%B5%84%E6%96%99%5C%E8%AF%B4%E6%98%8E%E4%B9%A6%5CLoRa%5CLT%E7%B3%BB%E5%88%97%5Csupport@dragino.com]].

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