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901	901	* The sensor is detected when the device is turned on, and it will flash 4 times quickly when it is detected.
902	902	* Blink once when device transmit a packet.
903	903
904		-== 2.8  ​Firmware Change Log ==
	904	+== 2.10 ​Firmware Change Log ==
905	905
906	906
907		-**Firmware download link: **[[http:~~/~~/www.dragino.com/downloads/index.php?dir=LoRa_End_Node/LLDS12/Firmware/>>url:http://www.dragino.com/downloads/index.php?dir=LoRa_End_Node/LLDS12/Firmware/]]
	907	+**Firmware download link:**
908	908
	909	+[[http:~~/~~/www.dragino.com/downloads/index.pHp?dir=LoRa_End_Node/LSPH01/Firmware/>>url:http://www.dragino.com/downloads/index.php?dir=LoRa_End_Node/LSE01/Firmware/]]
909	909
	911	+
910	910	**Firmware Upgrade Method: **[[Firmware Upgrade Instruction>>path:/xwiki/bin/view/Main/Firmware%20Upgrade%20Instruction%20for%20STM32%20base%20products/]]
911	911
912	912
913		-
914	914	= 3.  LiDAR ToF Measurement =
915	915
916	916	== 3.1 Principle of Distance Measurement ==
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917	917
918	918	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.
919	919
920		-[[image:1654831757579-263.png]]
	921	+[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image001.png]]
921	921
922	922
923	923
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925	925
926	926	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:
927	927
928		-[[image:1654831774373-275.png]]
	929	+[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image002.png]]
929	929
930	930
931	931	①Represents the detection blind zone of The LiDAR probe, 0-10cm, within which the output data is unreliable.
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938	938	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:
939	939
940	940
941		-[[image:1654831797521-720.png]]
	942	+[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image003.png]]
942	942
943	943
944	944	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.
945	945
946		-[[image:1654831810009-716.png]]
	947	+[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image004.png]]
947	947
948	948
949	949	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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1088	1088	* Reply to the confirmation package: 26 01
1089	1089	* Reply to non-confirmed packet: 26 00
1090	1090
	1092	+
1091	1091	Device will send an uplink after got this downlink command. With below payload:
1092	1092
1093	1093	Configures info payload:
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1340	1340	* (% style="color:red" %)**IN865**(%%):  LoRaWAN IN865 band
1341	1341	* (% style="color:red" %)**CN470**(%%): LoRaWAN CN470 band
1342	1342
	1345	+
1343	1343	= 10. ​ Packing Info =
1344	1344
1345	1345
...	...	@@ -1354,6 +1354,7 @@
1354	1354	* Package Size / pcs : cm
1355	1355	* Weight / pcs : g
1356	1356
	1360	+
1357	1357	= 11.  ​Support =
1358	1358
1359	1359	* 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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