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4	4
5	5	**Contents:**
6	6
	7	+{{toc/}}
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11	11
12	12
	14	+
13	13	= 1.  Introduction =
14	14
15	15	== 1.1 ​ What is LoRaWAN LiDAR ToF Distance Sensor ==
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17	17	(((
18	18
19	19
	22	+(((
20	20	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.
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21	21
	26	+(((
22	22	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.
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23	23
	30	+(((
24	24	It detects the distance between the measured object and the sensor, and uploads the value via wireless to LoRaWAN IoT Server.
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25	25
	34	+(((
26	26	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.
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27	27
	38	+(((
28	28	LLDS12 is powered by (% style="color:blue" %)**8500mAh Li-SOCI2 battery**(%%), it is designed for long term use up to 5 years.
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29	29
	42	+(((
30	30	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.
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33	33
34	34	[[image:1654826306458-414.png]]
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238	238
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240	240
241		-=== 2.3.4 Soil Temperature ===
	255	+=== 2.3.4  Distance signal strength ===
242	242
243		-Get Soil Temperature
	257	+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.
244	244
245	245
246	246	**Example**:
247	247
248		-If payload is: **0105H**:  (0105 & FC00 == 0), temp = 0105H /10 = 26.1 degree
	262	+If payload is: 01D7(H)=471(D), distance signal strength=471, 471>100,471≠65535, the measured value of Dist is considered credible.
249	249
250		-If payload is: **FF3FH** :  (FF3F & FC00 == 1) , temp = (FF3FH - 65536)/10 = -19.3 degrees.
	264	+Customers can judge whether they need to adjust the environment based on the signal strength.
251	251
252	252
253	253
254		-=== 2.3.5 Interrupt Pin ===
	268	+=== 2.3.5  Interrupt Pin ===
255	255
256	256	This data field shows if this packet is generated by interrupt or not. [[Click here>>||anchor="H3.2SetInterruptMode"]] for the hardware and software set up.
257	257
	272	+Note: The Internet Pin is a separate pin in the screw terminal. See [[pin mapping>>path:#pins]].
258	258
259	259	**Example:**
260	260
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264	264
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266	266
267		-=== 2.3.6 Message Type ===
	282	+=== 2.3.6  LiDAR temp ===
268	268
	284	+Characterize the internal temperature value of the sensor.
	285	+
	286	+**Example: **
	287	+If payload is: 1C(H) <<24>>24=28(D),LiDAR temp=28℃.
	288	+If payload is: F2(H) <<24>>24=-14(D),LiDAR temp=-14℃.
	289	+
	290	+
	291	+
	292	+=== 2.3.7  Message Type ===
	293	+
269	269	(((
270	270	For a normal uplink payload, the message type is always 0x01.
271	271	)))
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279	279	|=(% style="width: 160px;" %)**Message Type Code**|=(% style="width: 163px;" %)**Description**|=(% style="width: 173px;" %)**Payload**
280	280	|(% style="width:160px" %)0x01|(% style="width:163px" %)Normal Uplink|(% style="width:173px" %)[[Normal Uplink Payload>>||anchor="H2.3200BUplinkPayload"]]
281	281	|(% style="width:160px" %)0x02|(% style="width:163px" %)Reply configures info|(% style="width:173px" %)[[Configure Info Payload>>||anchor="H3.4GetFirmwareVersionInfo"]]
282		-|(% style="width:160px" %)0x03|(% style="width:163px" %)Reply Calibration Info|(% style="width:173px" %)[[Calibration Payload>>||anchor="H2.7Calibration"]]
283	283
284		-=== 2.3.7 Decode payload in The Things Network ===
285	285
	309	+
	310	+=== 2.3.8  Decode payload in The Things Network ===
	311	+
286	286	While using TTN network, you can add the payload format to decode the payload.
287	287
288	288
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449	449	* Check what sub-band the LoRaWAN server ask from the OTAA Join Accept message and switch to that sub-band
450	450	* 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)
451	451
452		-=== 2.6.3 CN470-510 (CN470) ===
	478	+=== 2.6.3  CN470-510 (CN470) ===
453	453
454	454	(((
455	455	Used in China, Default use CHE=1
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538	538
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540	540
541		-=== 2.6.4 AU915-928(AU915) ===
	567	+=== 2.6.4  AU915-928(AU915) ===
542	542
543	543	(((
544	544	Frequency band as per definition in LoRaWAN 1.0.3 Regional document.
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559	559	* Check what sub-band the LoRaWAN server ask from the OTAA Join Accept message and switch to that sub-band
560	560	* 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)
561	561
562		-=== 2.6.5 AS920-923 & AS923-925 (AS923) ===
	588	+=== 2.6.5  AS920-923 & AS923-925 (AS923) ===
563	563
564	564	(((
565	565	(% style="color:blue" %)**Default Uplink channel:**
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668	668
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670	670
671		-=== 2.6.6 KR920-923 (KR920) ===
	697	+=== 2.6.6  KR920-923 (KR920) ===
672	672
673	673	(((
674	674	(% style="color:blue" %)**Default channel:**
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741	741
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743	743
744		-=== 2.6.7 IN865-867 (IN865) ===
	770	+=== 2.6.7  IN865-867 (IN865) ===
745	745
746	746	(((
747	747	(% style="color:blue" %)**Uplink:**