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Title

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1		-LLDS12-LoRaWAN LiDAR ToF Distance Sensor User Manual
	1	+LDDS75 - LoRaWAN Distance Detection Sensor User Manual

Content

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1	1	(% style="text-align:center" %)
2		-[[image:image-20220610095606-1.png]]
	2	+[[image:1654846127817-788.png]]
3	3
4		-
5	5	**Contents:**
6	6
7		-{{toc/}}
8	8
9	9
10	10
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14	14
15	15	= 1.  Introduction =
16	16
17		-== 1.1 ​ What is LoRaWAN LiDAR ToF Distance Sensor ==
	15	+== 1.1 ​ What is LoRaWAN Distance Detection Sensor ==
18	18
19	19	(((
20	20
21	21
22	22	(((
23		-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.
24		-)))
	21	+The Dragino LDDS75 is a **(% style="color:#4F81BD" %)LoRaWAN Distance Detection Sensor**(%%) for Internet of Things solution. It is used to measure the distance between the sensor and a flat object. The distance detection sensor is a module that uses **(% style="color:#4472C4" %) ultrasonic sensing** (%%)technology for distance measurement, and **temperature compensation** is performed internally to improve the reliability of data. The LDDS75 can be applied to scenarios such as horizontal distance measurement, liquid level measurement, parking management system, object proximity and presence detection, intelligent trash can management system, robot obstacle avoidance, automatic control, sewer, bottom water level monitoring, etc.
25	25
26		-(((
27		-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.
28		-)))
29	29
30		-(((
31		-It detects the distance between the measured object and the sensor, and uploads the value via wireless to LoRaWAN IoT Server.
32		-)))
	24	+It detects the distance** between the measured object and the sensor**, and uploads the value via wireless to LoRaWAN IoT Server.
33	33
34		-(((
35		-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.
36		-)))
37	37
38		-(((
39		-LLDS12 is powered by (% style="color:blue" %)**8500mAh Li-SOCI2 battery**(%%), it is designed for long term use up to 5 years.
40		-)))
	27	+The LoRa wireless technology used in LDDS75 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.
41	41
42		-(((
43		-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.
	29	+
	30	+LDDS75 is powered by **4000mA or 8500mAh Li-SOCI2 battery**; It is designed for long term use up to 10 years*.
	31	+
	32	+
	33	+Each LDDS75 pre-loads with a set of unique keys for LoRaWAN registrations, register these keys to local LoRaWAN server and it will auto connect if there is network coverage, after power on.
	34	+
	35	+
	36	+*Actually lifetime depends on network coverage and uplink interval and other factors
44	44	)))
45	45	)))
46	46
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804	804	* The sensor is detected when the device is turned on, and it will flash 4 times quickly when it is detected.
805	805	* Blink once when device transmit a packet.
806	806
	800	+
807	807	== 2.8  ​Firmware Change Log ==
808	808
809	809
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874	874	* The LiDAR probe is cover by dirty things; the reading might be wrong. In this case, need to clean the probe.
875	875	* The sensor window is made by Acrylic. Don’t touch it with alcohol material. This will destroy the sensor window.
876	876
877		-
878		-
879	879	= 4.  Configure LLDS12 via AT Command or LoRaWAN Downlink =
880	880
881	881	(((
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963	963	[[image:image-20220607171554-8.png]]
964	964
965	965
966		-
967	967	(((
968	968	(% style="color:#037691" %)**Downlink Command: 0x01**
969	969	)))
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981	981	)))
982	982	* (((
983	983	Example 2: Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds
984		-
985		-
986		-
987	987	)))
988	988
989	989	== 4.2  Set Interrupt Mode ==
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1210	1210
1211	1211
1212	1212	(((
	1201	+(((
1213	1213	In the PC, you need to set the serial baud rate to (% style="color:green" %)**9600**(%%) to access the serial console for LLDS12.
	1203	+)))
1214	1214
	1205	+(((
1215	1215	LLDS12 will output system info once power on as below:
1216	1216	)))
	1208	+)))
1217	1217
1218	1218
1219	1219	[[image:1654593712276-618.png]]
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1234	1234	== 8.1  AT Commands input doesn’t work ==
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1236	1236
	1229	+(((
1237	1237	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.
	1231	+)))
1238	1238
1239	1239
1240	1240	== 8.2  Significant error between the output distant value of LiDAR and actual distance ==
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1279	1279	* (% style="color:red" %)**IN865**(%%):  LoRaWAN IN865 band
1280	1280	* (% style="color:red" %)**CN470**(%%): LoRaWAN CN470 band
1281	1281
	1276	+
	1277	+
1282	1282	= 10. ​ Packing Info =
1283	1283
1284	1284
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1293	1293	* Package Size / pcs : cm
1294	1294	* Weight / pcs : g
1295	1295
	1292	+
	1293	+
1296	1296	= 11.  ​Support =
1297	1297
1298	1298	* 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.

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Author

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	1	+XWiki.Xiaoling

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	1	+107.3 KB

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