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Title

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

Content

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1	1	(% style="text-align:center" %)
2		-[[image:1654846127817-788.png]]
	2	+[[image:image-20220610095606-1.png]]
3	3
	4	+
4	4	**Contents:**
5	5
	7	+{{toc/}}
6	6
7	7
8	8
...	...	@@ -466,6 +466,7 @@
466	466	* Check what sub-band the LoRaWAN server ask from the OTAA Join Accept message and switch to that sub-band
467	467	* 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)
468	468
	471	+
469	469	=== 2.6.3  CN470-510 (CN470) ===
470	470
471	471	(((
...	...	@@ -576,6 +576,7 @@
576	576	* Check what sub-band the LoRaWAN server ask from the OTAA Join Accept message and switch to that sub-band
577	577	* 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)
578	578
	582	+
579	579	=== 2.6.5  AS920-923 & AS923-925 (AS923) ===
580	580
581	581	(((
...	...	@@ -802,7 +802,6 @@
802	802	* The sensor is detected when the device is turned on, and it will flash 4 times quickly when it is detected.
803	803	* Blink once when device transmit a packet.
804	804
805		-
806	806	== 2.8  ​Firmware Change Log ==
807	807
808	808
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830	830	[[image:1654831774373-275.png]]
831	831
832	832
833		-(((
834		-(% style="color:blue" %)**① **(%%)Represents the detection blind zone of The LiDAR probe, 0-10cm, within which the output data is unreliable.
835		-)))
	836	+①Represents the detection blind zone of The LiDAR probe, 0-10cm, within which the output data is unreliable.
836	836
837		-(((
838		-(% style="color:blue" %)**② **(%%)Represents the operating range of The LiDAR probe detecting black target with 10% reflectivity, 0.1-5m.
839		-)))
	838	+②Represents the operating range of The LiDAR probe detecting black target with 10% reflectivity, 0.1-5m.
840	840
841		-(((
842		-(% style="color:blue" %)**③ **(%%)Represents the operating range of The LiDAR probe detecting white target with 90% reflectivity, 0.1-12m.
843		-)))
	840	+③Represents the operating range of The LiDAR probe detecting white target with 90% reflectivity, 0.1-12m.
844	844
845	845
846		-(((
847	847	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:
848		-)))
849	849
850	850
851	851	[[image:1654831797521-720.png]]
852	852
853	853
854		-(((
855	855	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.
856		-)))
857	857
858	858	[[image:1654831810009-716.png]]
859	859
860	860
861		-(((
862	862	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.
863		-)))
864	864
865	865
866	866
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873	873	* The LiDAR probe is cover by dirty things; the reading might be wrong. In this case, need to clean the probe.
874	874	* The sensor window is made by Acrylic. Don’t touch it with alcohol material. This will destroy the sensor window.
875	875
	867	+
876	876	= 4.  Configure LLDS12 via AT Command or LoRaWAN Downlink =
877	877
878	878	(((
879		-(((
880	880	Use can configure LLDS12 via AT Command or LoRaWAN Downlink.
881	881	)))
882		-)))
883	883
884	884	* (((
885		-(((
886	886	AT Command Connection: See [[FAQ>>||anchor="H7.A0FAQ"]].
887	887	)))
888		-)))
889	889	* (((
890		-(((
891	891	LoRaWAN Downlink instruction for different platforms: [[IoT LoRaWAN Server>>doc:Main.WebHome]]
892	892	)))
893		-)))
894	894
895	895	(((
896		-(((
897	897
898		-)))
899	899
900		-(((
901	901	There are two kinds of commands to configure LLDS12, they are:
902	902	)))
903		-)))
904	904
905	905	* (((
906		-(((
907	907	(% style="color:#4f81bd" %)** General Commands**.
908	908	)))
909		-)))
910	910
911	911	(((
912		-(((
913	913	These commands are to configure:
914	914	)))
915		-)))
916	916
917	917	* (((
918		-(((
919	919	General system settings like: uplink interval.
920	920	)))
921		-)))
922	922	* (((
923		-(((
924	924	LoRaWAN protocol & radio related command.
925	925	)))
926		-)))
927	927
928	928	(((
929		-(((
930	930	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>>doc:Main.End Device AT Commands and Downlink Command.WebHome]]
931	931	)))
932		-)))
933	933
934	934	(((
935		-(((
936	936
937	937	)))
938		-)))
939	939
940	940	* (((
941		-(((
942	942	(% style="color:#4f81bd" %)** Commands special design for LLDS12**
943	943	)))
944		-)))
945	945
946	946	(((
947		-(((
948	948	These commands only valid for LLDS12, as below:
949	949	)))
950		-)))
951	951
952	952
953	953
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960	960	[[image:image-20220607171554-8.png]]
961	961
962	962
	929	+
963	963	(((
964	964	(% style="color:#037691" %)**Downlink Command: 0x01**
965	965	)))
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977	977	)))
978	978	* (((
979	979	Example 2: Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds
	947	+
	948	+
	949	+
980	980	)))
981	981
982	982	== 4.2  Set Interrupt Mode ==
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1007	1007	Example 2: Downlink Payload: 06000003 ~/~/ Set the interrupt mode to rising edge trigger
1008	1008	)))
1009	1009
	980	+
	981	+
1010	1010	== 4.3  Get Firmware Version Info ==
1011	1011
1012	1012	Feature: use downlink to get firmware version.
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1203	1203
1204	1204
1205	1205	(((
1206		-(((
1207	1207	In the PC, you need to set the serial baud rate to (% style="color:green" %)**9600**(%%) to access the serial console for LLDS12.
1208		-)))
1209	1209
1210		-(((
1211	1211	LLDS12 will output system info once power on as below:
1212	1212	)))
1213		-)))
1214	1214
1215	1215
1216	1216	[[image:1654593712276-618.png]]
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1231	1231	== 8.1  AT Commands input doesn’t work ==
1232	1232
1233	1233
1234		-(((
1235	1235	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.
1236		-)))
1237	1237
1238	1238
1239	1239	== 8.2  Significant error between the output distant value of LiDAR and actual distance ==
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1278	1278	* (% style="color:red" %)**IN865**(%%):  LoRaWAN IN865 band
1279	1279	* (% style="color:red" %)**CN470**(%%): LoRaWAN CN470 band
1280	1280
1281		-
1282		-
1283	1283	= 10. ​ Packing Info =
1284	1284
1285	1285
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1294	1294	* Package Size / pcs : cm
1295	1295	* Weight / pcs : g
1296	1296
1297		-
1298		-
1299	1299	= 11.  ​Support =
1300	1300
1301	1301	* 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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1		-XWiki.Xiaoling

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1		-107.3 KB

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