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468	468	* Check what sub-band the LoRaWAN server ask from the OTAA Join Accept message and switch to that sub-band
469	469	* 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)
470	470
471		-
472	472	=== 2.6.3  CN470-510 (CN470) ===
473	473
474	474	(((
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579	579	* Check what sub-band the LoRaWAN server ask from the OTAA Join Accept message and switch to that sub-band
580	580	* 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)
581	581
582		-
583	583	=== 2.6.5  AS920-923 & AS923-925 (AS923) ===
584	584
585	585	(((
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833	833	[[image:1654831774373-275.png]]
834	834
835	835
836		-①Represents the detection blind zone of The LiDAR probe, 0-10cm, within which the output data is unreliable.
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	835	+(% style="color:blue" %)**① **(%%)Represents the detection blind zone of The LiDAR probe, 0-10cm, within which the output data is unreliable.
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837	837
838		-②Represents the operating range of The LiDAR probe detecting black target with 10% reflectivity, 0.1-5m.
	838	+(((
	839	+(% style="color:blue" %)**② **(%%)Represents the operating range of The LiDAR probe detecting black target with 10% reflectivity, 0.1-5m.
	840	+)))
839	839
840		-③Represents the operating range of The LiDAR probe detecting white target with 90% reflectivity, 0.1-12m.
	842	+(((
	843	+(% style="color:blue" %)**③ **(%%)Represents the operating range of The LiDAR probe detecting white target with 90% reflectivity, 0.1-12m.
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841	841
842	842
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843	843	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:
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844	844
845	845
846	846	[[image:1654831797521-720.png]]
847	847
848	848
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849	849	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.
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850	850
851	851	[[image:1654831810009-716.png]]
852	852
853	853
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854	854	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.
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855	855
856	856
857	857
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868	868	= 4.  Configure LLDS12 via AT Command or LoRaWAN Downlink =
869	869
870	870	(((
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871	871	Use can configure LLDS12 via AT Command or LoRaWAN Downlink.
872	872	)))
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873	873
874	874	* (((
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875	875	AT Command Connection: See [[FAQ>>||anchor="H7.A0FAQ"]].
876	876	)))
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877	877	* (((
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878	878	LoRaWAN Downlink instruction for different platforms: [[IoT LoRaWAN Server>>doc:Main.WebHome]]
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880	880
881	881	(((
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882	882
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883	883
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884	884	There are two kinds of commands to configure LLDS12, they are:
885	885	)))
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886	886
887	887	* (((
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888	888	(% style="color:#4f81bd" %)** General Commands**.
889	889	)))
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890	890
891	891	(((
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892	892	These commands are to configure:
893	893	)))
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894	894
895	895	* (((
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896	896	General system settings like: uplink interval.
897	897	)))
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898	898	* (((
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899	899	LoRaWAN protocol & radio related command.
900	900	)))
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901	901
902	902	(((
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903	903	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]]
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905	905
906	906	(((
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907	907
908	908	)))
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909	909
910	910	* (((
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911	911	(% style="color:#4f81bd" %)** Commands special design for LLDS12**
912	912	)))
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913	913
914	914	(((
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915	915	These commands only valid for LLDS12, as below:
916	916	)))
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917	917
918	918
919	919
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949	949
950	950	)))
951	951
	988	+
	989	+
952	952	== 4.2  Set Interrupt Mode ==
953	953
954	954	Feature, Set Interrupt mode for GPIO_EXIT.
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1175	1175
1176	1176
1177	1177	(((
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1178	1178	In the PC, you need to set the serial baud rate to (% style="color:green" %)**9600**(%%) to access the serial console for LLDS12.
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1179	1179
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1180	1180	LLDS12 will output system info once power on as below:
1181	1181	)))
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1182	1182
1183	1183
1184	1184	[[image:1654593712276-618.png]]
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1199	1199	== 8.1  AT Commands input doesn’t work ==
1200	1200
1201	1201
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1202	1202	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.
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1203	1203
1204	1204
1205	1205	== 8.2  Significant error between the output distant value of LiDAR and actual distance ==