Wiki source code of LDS12-LB -- LoRaWAN LiDAR ToF Distance Sensor User Manual

Version 84.3 by Xiaoling on 2023/06/15 16:41

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26.1	1	(% style="text-align:center" %)
80.2	2	[[image:image-20230614153353-1.png]]
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31.2	10	Table of Contents：
30.1	11
1.1	12	{{toc/}}
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	18
31.1	19	= 1. Introduction =
1.1	20
80.2	21	== 1.1 What is LoRaWAN LiDAR ToF Distance Sensor ==
1.1	22
39.6	23
80.3	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.
1.1	25
80.3	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.
1.1	27
80.2	28	It detects the distance between the measured object and the sensor, and uploads the value via wireless to LoRaWAN IoT Server.
1.1	29
80.3	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.
62.4	31
80.3	32	LDS12-LB (% style="color:blue" %)supports BLE configure(%%) and (% style="color:blue" %)wireless OTA update(%%) which make user easy to use.
1.1	33
80.3	34	LDS12-LB is powered by (% style="color:blue" %)8500mAh Li-SOCI2 battery(%%), it is designed for long term use up to 5 years.
1.1	35
80.3	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.
75.3	37
84.2	38	[[image:image-20230615152941-1.png\|\|height="459" width="800"]]
1.1	39
64.2	40
1.1	41	== 1.2 Features ==
	42
39.6	43
1.1	44	* LoRaWAN 1.0.3 Class A
62.4	45	* Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915/IN865
1.1	46	* Ultra-low power consumption
82.2	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
1.1	51	* Support Bluetooth v5.1 and LoRaWAN remote configure
	52	* Support wireless OTA update firmware
70.5	53	* AT Commands to change parameters
1.1	54	* Downlink to change configure
	55	* 8500mAh Battery for long term use
	56
82.21	57
84.3	58
1.1	59	== 1.3 Specification ==
	60
	61
70.28	62	(% style="color:#037691" %)Common DC Characteristics:
70.6	63
70.28	64	* Supply Voltage: built in 8500mAh Li-SOCI2 battery , 2.5v ~~ 3.6v
	65	* Operating Temperature: -40 ~~ 85°C
	66
82.3	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
70.28	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
82.21	104
84.3	105
82.4	106	== 1.4 Applications ==
70.6	107
79.15	108
82.4	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
77.4	116
82.21	117
84.3	118
79.18	119	(% style="display:none" %)
	120
82.4	121	== 1.5 Sleep mode and working mode ==
77.4	122
	123
1.1	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
82.4	129	== 1.6 Button & LEDs ==
1.1	130
	131
6.1	132	[[image:Main.User Manual for LoRaWAN End Nodes.D20-LBD22-LBD23-LB_LoRaWAN_Temperature_Sensor_User_Manual.WebHome@1675071855856-879.png]]
1.1	133
	134
14.13	135	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
14.11	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
1.1	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	)))
6.1	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.
1.1	147
82.21	148
84.3	149
82.4	150	== 1.7 BLE connection ==
1.1	151
	152
80.4	153	LDS12-LB support BLE remote configure.
1.1	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
82.4	164	== 1.8 Pin Definitions ==
1.1	165
82.4	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"]]
1.1	167
43.1	168
82.4	169	== 1.9 Mechanical ==
67.4	170
82.4	171
6.1	172	[[image:Main.User Manual for LoRaWAN End Nodes.D20-LBD22-LBD23-LB_LoRaWAN_Temperature_Sensor_User_Manual.WebHome@1675143884058-338.png]]
1.1	173
	174
6.1	175	[[image:Main.User Manual for LoRaWAN End Nodes.D20-LBD22-LBD23-LB_LoRaWAN_Temperature_Sensor_User_Manual.WebHome@1675143899218-599.png]]
1.1	176
	177
6.1	178	[[image:Main.User Manual for LoRaWAN End Nodes.D20-LBD22-LBD23-LB_LoRaWAN_Temperature_Sensor_User_Manual.WebHome@1675143909447-639.png]]
1.1	179
	180
70.20	181	(% style="color:blue" %)Probe Mechanical:
70.10	182
	183
82.3	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"]]
79.2	185
	186
80.4	187	= 2. Configure LDS12-LB to connect to LoRaWAN network =
67.4	188
1.1	189	== 2.1 How it works ==
	190
	191
80.4	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.
1.1	193
64.2	194	(% style="display:none" %) (%%)
1.1	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
62.5	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.
1.1	202
84.2	203	[[image:image-20230615153004-2.png\|\|height="459" width="800"]](% style="display:none" %)
1.1	204
64.2	205
80.4	206	(% style="color:blue" %)Step 1:(%%) Create a device in TTN with the OTAA keys from LDS12-LB.
1.1	207
80.4	208	Each LDS12-LB is shipped with a sticker with the default device EUI as below:
1.1	209
30.1	210	[[image:image-20230426084152-1.png\|\|alt="图片-20230426084152-1.png" height="233" width="502"]]
1.1	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
14.13	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"]]
1.1	219
	220
	221	(% style="color:blue" %)Add APP EUI and DEV EUI
	222
30.1	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"]]
1.1	224
	225
	226	(% style="color:blue" %)Add APP EUI in the application
	227
	228
30.1	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"]]
1.1	230
	231
	232	(% style="color:blue" %)Add APP KEY
	233
30.1	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"]]
1.1	235
	236
80.4	237	(% style="color:blue" %)Step 2:(%%) Activate on LDS12-LB
1.1	238
	239
80.4	240	Press the button for 5 seconds to activate the LDS12-LB.
6.1	241
1.1	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
82.8	247	== 2.3 Uplink Payload ==
1.1	248
	249
62.5	250	(((
80.4	251	LDS12-LB will uplink payload via LoRaWAN with below payload format:
62.5	252	)))
1.1	253
62.5	254	(((
82.4	255	Uplink payload includes in total 11 bytes.
62.5	256	)))
1.1	257
82.6	258	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
	259	\|=(% style="width: 62.5px;background-color:#4F81BD;color:white" %)(((
70.10	260	Size(bytes)
82.6	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
82.21	262	\|(% style="width:62.5px" %)Value\|(% style="width:62.5px" %)[[BAT>>\|\|anchor="H2.3.1BatteryInfo"]]\|(% style="width:62.5px" %)(((
82.8	263	[[Temperature DS18B20>>\|\|anchor="H2.3.2DS18B20Temperaturesensor"]]
82.14	264	)))\|[[Distance>>\|\|anchor="H2.3.3Distance"]]\|[[Distance signal strength>>\|\|anchor="H2.3.4Distancesignalstrength"]]\|(((
82.8	265	[[Interrupt flag>>\|\|anchor="H2.3.5InterruptPin"]]
	266	)))\|[[LiDAR temp>>\|\|anchor="H2.3.6LiDARtemp"]]\|(((
	267	[[Message Type>>\|\|anchor="H2.3.7MessageType"]]
82.4	268	)))
1.1	269
82.6	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"]]
1.1	271
	272
82.8	273	=== 2.3.1 Battery Info ===
1.1	274
	275
80.4	276	Check the battery voltage for LDS12-LB.
1.1	277
70.10	278	Ex1: 0x0B45 = 2885mV
1.1	279
70.10	280	Ex2: 0x0B49 = 2889mV
46.1	281
1.1	282
82.8	283	=== 2.3.2 DS18B20 Temperature sensor ===
67.7	284
	285
82.4	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.
1.1	287
14.22	288
82.4	289	Example:
1.1	290
82.4	291	If payload is: 0105H: (0105 & FC00 == 0), temp = 0105H /10 = 26.1 degree
79.11	292
82.4	293	If payload is: FF3FH : (FF3F & FC00 == 1) , temp = (FF3FH - 65536)/10 = -19.3 degrees.
67.7	294
	295
82.8	296	=== 2.3.3 Distance ===
10.1	297
1.1	298
82.4	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
82.8	307	=== 2.3.4 Distance signal strength ===
82.4	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
82.8	320	=== 2.3.5 Interrupt Pin ===
82.4	321
	322
82.13	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.
82.4	324
82.13	325	Note: The Internet Pin is a separate pin in the screw terminal. See [[pin mapping>>\|\|anchor="H1.8PinDefinitions"]].
82.4	326
70.10	327	Example:
1.1	328
70.10	329	0x00: Normal uplink packet.
1.1	330
70.10	331	0x01: Interrupt Uplink Packet.
1.1	332
	333
82.8	334	=== 2.3.6 LiDAR temp ===
62.5	335
1.1	336
82.4	337	Characterize the internal temperature value of the sensor.
1.1	338
82.4	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℃.
1.1	342
39.5	343
82.8	344	=== 2.3.7 Message Type ===
1.1	345
	346
55.1	347	(((
82.4	348	For a normal uplink payload, the message type is always 0x01.
55.1	349	)))
	350
	351	(((
82.4	352	Valid Message Type:
55.1	353	)))
46.1	354
82.4	355	(% border="1" cellspacing="5" style="background-color:#f2f2f2; width:499px" %)
82.7	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
82.11	357	\|(% style="width:160px" %)0x01\|(% style="width:163px" %)Normal Uplink\|(% style="width:173px" %)[[Normal Uplink Payload>>\|\|anchor="H2.3200BUplinkPayload"]]
82.12	358	\|(% style="width:160px" %)0x02\|(% style="width:163px" %)Reply configures info\|(% style="width:173px" %)[[Configure Info Payload>>\|\|anchor="H3.ConfigureLDS12-LB"]]
46.1	359
82.22	360
84.3	361
82.8	362	=== 2.3.8 Decode payload in The Things Network ===
	363
	364
70.10	365	While using TTN network, you can add the payload format to decode the payload.
1.1	366
82.10	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"]]
1.1	368
	369
62.5	370	(((
82.4	371	The payload decoder function for TTN is here:
62.5	372	)))
1.1	373
82.4	374	(((
	375	LDS12-LB TTN Payload Decoder: [[https:~~/~~/github.com/dragino/dragino-end-node-decoder>>https://github.com/dragino/dragino-end-node-decoder]]
	376	)))
1.1	377
82.4	378
82.8	379	== 2.4 Uplink Interval ==
1.1	380
	381
80.4	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"]]
1.1	383
70.10	384
82.8	385	== 2.5 Show Data in DataCake IoT Server ==
70.10	386
	387
62.5	388	(((
70.10	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:
62.5	390	)))
1.1	391
	392
62.5	393	(((
70.10	394	(% style="color:blue" %)Step 1(%%): Be sure that your device is programmed and properly connected to the network at this time.
62.5	395	)))
1.1	396
62.5	397	(((
70.10	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:
62.5	399	)))
14.26	400
55.1	401
70.10	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"]]
1.1	403
	404
70.10	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"]]
1.1	406
	407
70.10	408	(% style="color:blue" %)Step 3(%%): Create an account or log in Datacake.
1.1	409
80.4	410	(% style="color:blue" %)Step 4(%%): Search the LDS12-LB and add DevEUI.
1.1	411
70.10	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"]]
62.5	413
1.1	414
70.10	415	After added, the sensor data arrive TTN V3, it will also arrive and show in Datacake.
1.1	416
70.10	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"]]
1.1	418
	419
70.10	420	== 2.6 Datalog Feature ==
1.1	421
	422
80.4	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.
62.5	424
	425
70.10	426	=== 2.6.1 Ways to get datalog via LoRaWAN ===
62.5	427
	428
80.4	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.
62.5	430
	431	* (((
80.4	432	a) LDS12-LB will do an ACK check for data records sending to make sure every data arrive server.
62.5	433	)))
	434	* (((
80.4	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.
62.5	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
70.10	443	=== 2.6.2 Unix TimeStamp ===
62.5	444
	445
80.4	446	LDS12-LB uses Unix TimeStamp format based on
62.5	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
70.10	460	=== 2.6.3 Set Device Time ===
62.5	461
	462
	463	User need to set (% style="color:blue" %)SYNCMOD=1(%%) to enable sync time via MAC command.
	464
80.4	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).
62.5	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
70.10	470	=== 2.6.4 Poll sensor value ===
62.5	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	(((
64.8	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"]]
62.5	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	(((
80.4	493	Uplink Internal =5s，means LDS12-LB will send one packet every 5s. range 5~~255s.
62.5	494	)))
	495
	496
70.10	497	== 2.7 Frequency Plans ==
1.1	498
	499
80.4	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.
1.1	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
82.4	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
82.15	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"]]
82.4	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
82.15	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"]]
82.4	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
82.15	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"]]
82.4	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
82.15	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"]]
82.4	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
82.15	553	=== 2.8.3 Notice of usage ===
82.4	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
82.15	563
84.3	564
82.4	565	=== 2.8.4 Reflectivity of different objects ===
	566
	567
	568	(% border="1" cellspacing="5" style="background-color:#f2f2f2; width:379px" %)
82.15	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
82.4	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
82.16	591
84.3	592
80.4	593	= 3. Configure LDS12-LB =
1.1	594
16.4	595	== 3.1 Configure Methods ==
1.1	596
	597
80.4	598	LDS12-LB supports below configure method:
1.1	599
	600	* AT Command via Bluetooth Connection (Recommended): [[BLE Configure Instruction>>http://wiki.dragino.com/xwiki/bin/view/Main/BLE%20Bluetooth%20Remote%20Configure/]].
67.20	601
11.1	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]].
67.20	603
1.1	604	* LoRaWAN Downlink. Instruction for different platforms: See [[IoT LoRaWAN Server>>http://wiki.dragino.com/xwiki/bin/view/Main/]] section.
	605
82.16	606
84.3	607
1.1	608	== 3.2 General Commands ==
	609
	610
	611	These commands are to configure:
	612
	613	* General system settings like: uplink interval.
67.20	614
1.1	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
80.4	622	== 3.3 Commands special design for LDS12-LB ==
1.1	623
	624
80.4	625	These commands only valid for LDS12-LB, as below:
1.1	626
	627
	628	=== 3.3.1 Set Transmit Interval Time ===
	629
	630
62.5	631	(((
1.1	632	Feature: Change LoRaWAN End Node Transmit Interval.
62.5	633	)))
	634
	635	(((
1.1	636	(% style="color:blue" %)AT Command: AT+TDC
62.5	637	)))
1.1	638
14.34	639	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
82.16	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
1.1	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
62.5	651	(((
1.1	652	(% style="color:blue" %)Downlink Command: 0x01
62.5	653	)))
1.1	654
62.5	655	(((
1.1	656	Format: Command Code (0x01) followed by 3 bytes time value.
62.5	657	)))
1.1	658
62.5	659	(((
1.1	660	If the downlink payload=0100003C, it means set the END Node's Transmit Interval to 0x00003C=60(S), while type code is 01.
62.5	661	)))
1.1	662
62.5	663	* (((
	664	Example 1: Downlink Payload: 0100001E ~/~/ Set Transmit Interval (TDC) = 30 seconds
	665	)))
	666	* (((
73.8	667	Example 2: Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds
82.22	668
	669
	670
82.5	671	)))
79.19	672
70.11	673	=== 3.3.2 Set Interrupt Mode ===
62.5	674
	675
43.1	676	Feature, Set Interrupt mode for PA8 of pin.
1.1	677
46.1	678	When AT+INTMOD=0 is set, PA8 is used as a digital input port.
	679
1.1	680	(% style="color:blue" %)AT Command: AT+INTMOD
	681
14.34	682	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
82.16	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
1.1	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
62.6	704
1.1	705	* Example 2: Downlink Payload: 06000003 ~/~/ Set the interrupt mode to rising edge trigger
	706
82.16	707
84.3	708
82.5	709	=== 3.3.3 Get Firmware Version Info ===
	710
	711
	712	Feature: use downlink to get firmware version.
	713
82.18	714	(% style="color:blue" %)Downlink Command: 0x26
82.5	715
	716	(% border="1" cellspacing="5" style="background-color:#f2f2f2; width:492px" %)
82.21	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)
82.5	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" %)
82.17	728	\|=(% style="background-color:#4F81BD;color:white" %)(((
82.5	729	Size(bytes)
82.17	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
82.5	731	\|Value\|Software Type\|(((
82.17	732	Frequency Band
82.5	733	)))\|Sub-band\|(((
82.17	734	Firmware Version
82.5	735	)))\|Sensor Type\|Reserve\|(((
82.19	736	[[Message Type>>\|\|anchor="H2.3.7MessageType"]]
82.5	737	Always 0x02
	738	)))
	739
	740	(% style="color:#037691" %)Software Type(%%): Always 0x03 for LLDS12
	741
	742	(% style="color:#037691" %)Frequency Band:
	743
84.3	744	0x01: EU868
82.5	745
84.3	746	0x02: US915
82.5	747
84.3	748	0x03: IN865
82.5	749
84.3	750	0x04: AU915
82.5	751
84.3	752	0x05: KZ865
82.5	753
84.3	754	0x06: RU864
82.5	755
84.3	756	0x07: AS923
82.5	757
84.3	758	0x08: AS923-1
82.5	759
84.3	760	0x09: AS923-2
82.5	761
84.3	762	0xa0: AS923-3
82.5	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
16.4	786	= 4. Battery & Power Consumption =
14.45	787
1.1	788
80.4	789	LDS12-LB use ER26500 + SPC1520 battery pack. See below link for detail information about the battery info and how to replace.
1.1	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
16.4	794	= 5. OTA Firmware update =
1.1	795
	796
13.1	797	(% class="wikigeneratedid" %)
80.4	798	User can change firmware LDS12-LB to:
1.1	799
13.1	800	* Change Frequency band/ region.
62.7	801
13.1	802	* Update with new features.
62.7	803
13.1	804	* Fix bugs.
1.1	805
82.20	806	Firmware and changelog can be downloaded from : [[Firmware download link>>url:https://www.dropbox.com/sh/w1p7ukjrx49e62r/AAB3uCNCt-koYUvMkZUPBRSca?dl=0]]
1.1	807
31.1	808	Methods to Update Firmware:
1.1	809
79.15	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/]]
62.7	811
70.18	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]].
1.1	813
82.21	814
84.3	815
31.1	816	= 6. FAQ =
1.1	817
80.4	818	== 6.1 What is the frequency plan for LDS12-LB? ==
1.1	819
62.7	820
80.4	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"]]
62.7	822
1.1	823
80.4	824	= 7. Trouble Shooting =
1.1	825
80.4	826	== 7.1 AT Command input doesn't work ==
1.1	827
70.14	828
80.4	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.
70.14	830
	831
80.4	832	== 7.2 Significant error between the output distant value of LiDAR and actual distance ==
70.14	833
	834
80.4	835	(((
82.21	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.)
80.4	837	)))
70.14	838
80.4	839	(((
82.21	840	(% style="color:red" %)Troubleshooting(%%): Please avoid use of this product under such circumstance in practice.
80.4	841	)))
70.14	842
	843
80.4	844	(((
	845	(% style="color:blue" %)Cause ②(%%): The IR-pass filters are blocked.
	846	)))
70.14	847
79.7	848	(((
82.21	849	(% style="color:red" %)Troubleshooting(%%): please use dry dust-free cloth to gently remove the foreign matter.
79.7	850	)))
70.14	851
	852
	853	= 8. Order Info =
	854
	855
80.4	856	Part Number: (% style="color:blue" %)LDS12-LB-XXX
70.14	857
70.12	858	(% style="color:red" %)XXX(%%): The default frequency band
1.1	859
38.1	860	* (% style="color:red" %)AS923(%%): LoRaWAN AS923 band
1.1	861
38.1	862	* (% style="color:red" %)AU915(%%): LoRaWAN AU915 band
1.1	863
38.1	864	* (% style="color:red" %)EU433(%%): LoRaWAN EU433 band
1.1	865
38.1	866	* (% style="color:red" %)EU868(%%): LoRaWAN EU868 band
1.1	867
38.1	868	* (% style="color:red" %)KR920(%%): LoRaWAN KR920 band
1.1	869
38.1	870	* (% style="color:red" %)US915(%%): LoRaWAN US915 band
1.1	871
38.1	872	* (% style="color:red" %)IN865(%%): LoRaWAN IN865 band
1.1	873
38.1	874	* (% style="color:red" %)CN470(%%): LoRaWAN CN470 band
1.1	875
82.22	876
84.3	877
70.14	878	= 9. Packing Info =
67.11	879
	880
39.1	881	(% style="color:#037691" %)Package Includes:
1.1	882
80.4	883	* LDS12-LB LoRaWAN LiDAR ToF Distance Sensor x 1
1.1	884
39.1	885	(% style="color:#037691" %)Dimension and weight:
1.1	886
31.1	887	* Device Size: cm
1.1	888
31.1	889	* Device Weight: g
1.1	890
31.1	891	* Package Size / pcs : cm
1.1	892
31.1	893	* Weight / pcs : g
1.1	894
82.22	895
84.3	896
70.14	897	= 10. Support =
	898
	899
31.1	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.
39.6	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]].

Wiki source code of LDS12-LB -- LoRaWAN LiDAR ToF Distance Sensor User Manual

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