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804	804
805	805	== 2.7  LED Indicator ==
806	806
807		-The LLDS12 has an internal LED which is to show the status of different state.
	807	+The LDDS75 has an internal LED which is to show the status of different state.
808	808
809		-* The sensor is detected when the device is turned on, and it will flash 4 times quickly when it is detected.
	809	+
	810	+* Blink once when device power on.
	811	+* The device detects the sensor and flashes 5 times.
	812	+* Solid ON for 5 seconds once device successful Join the network.
810	810	* Blink once when device transmit a packet.
811	811
	815	+
	816	+
812	812	== 2.8  ​Firmware Change Log ==
813	813
814	814
815		-**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/]]
	820	+**Firmware download link: **[[http:~~/~~/www.dragino.com/downloads/index.php?dir=LoRa_End_Node/LSE01/Firmware/>>url:http://www.dragino.com/downloads/index.php?dir=LoRa_End_Node/LSE01/Firmware/]]
816	816
817	817
818	818	**Firmware Upgrade Method: **[[Firmware Upgrade Instruction>>doc:Main.Firmware Upgrade Instruction for STM32 base products.WebHome]]
...	...	@@ -819,68 +819,55 @@
819	819
820	820
821	821
822		-= 3.  LiDAR ToF Measurement =
	827	+== 2.9  Mechanical ==
823	823
824		-== 3.1 Principle of Distance Measurement ==
825	825
826		-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.
	830	+[[image:image-20220610172003-1.png]]
827	827
828		-[[image:1654831757579-263.png]]
	832	+[[image:image-20220610172003-2.png]]
829	829
830	830
	835	+== 2.10  Battery Analysis  ==
831	831
832		-== 3.2 Distance Measurement Characteristics ==
	837	+=== 2.10.1  Battery Type ===
833	833
834		-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:
	839	+The LDDS75 battery is a combination of a 4000mAh or 8500mAh Li/SOCI2 Battery and a Super Capacitor. The battery is non-rechargeable battery type with a low discharge rate (<2% per year). This type of battery is commonly used in IoT devices such as water meter.
835	835
836		-[[image:1654831774373-275.png]]
837	837
	842	+The battery related documents as below:
838	838
839		-(((
840		-(% style="color:blue" %)**① **(%%)Represents the detection blind zone of The LiDAR probe, 0-10cm, within which the output data is unreliable.
	844	+* (((
	845	+[[ Battery Dimension>>url:http://www.dragino.com/downloads/index.php?dir=datasheet/Battery/&file=LSN50-Battery-Dimension.pdf]],
841	841	)))
842		-
843		-(((
844		-(% style="color:blue" %)**② **(%%)Represents the operating range of The LiDAR probe detecting black target with 10% reflectivity, 0.1-5m.
	847	+* (((
	848	+[[Lithium-Thionyl Chloride Battery  datasheet>>url:https://www.dragino.com/downloads/downloads/datasheet/Battery/ER26500/ER26500_Datasheet-EN.pdf]],
845	845	)))
846		-
847		-(((
848		-(% style="color:blue" %)**③ **(%%)Represents the operating range of The LiDAR probe detecting white target with 90% reflectivity, 0.1-12m.
	850	+* (((
	851	+[[Lithium-ion Battery-Capacitor datasheet>>url:http://www.dragino.com/downloads/downloads/datasheet/Battery/SPC_1520_datasheet.jpg]], [[Tech Spec>>url:http://www.dragino.com/downloads/downloads/datasheet/Battery/SPC1520%20Technical%20Specification20171123.pdf]]
849	849	)))
850	850
	854	+ [[image:image-20220610172400-3.png]]
851	851
852		-(((
853		-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:
854		-)))
855	855
856	856
857		-[[image:1654831797521-720.png]]
	858	+=== 2.10.2  Replace the battery ===
858	858
	860	+(((
	861	+You can change the battery in the LDDS75.The type of battery is not limited as long as the output is between 3v to 3.6v. On the main board, there is a diode (D1) between the battery and the main circuit. If you need to use a battery with less than 3.3v, please remove the D1 and shortcut the two pads of it so there won’t be voltage drop between battery and main board.
	862	+)))
859	859
860	860	(((
861		-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.
	865	+
862	862	)))
863	863
864		-[[image:1654831810009-716.png]]
865		-
866		-
867	867	(((
868		-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.
	869	+The default battery pack of LDDS75 includes a ER18505 plus super capacitor. If user can’t find this pack locally, they can find ER18505 or equivalence, which will also work in most case. The SPC can enlarge the battery life for high frequency use (update period below 5 minutes)
869	869	)))
870	870
871	871
872	872
873		-== 3.3 Notice of usage: ==
	874	+= 3.  Configure LLDS12 via AT Command or LoRaWAN Downlink =
874	874
875		-Possible invalid /wrong reading for LiDAR ToF tech:
876		-
877		-* Measure high reflectivity object such as: Mirror, Smooth ceramic tile, static milk surface, will have possible wrong readings.
878		-* While there is transparent object such as glass, water drop between the measured object and the LiDAR sensor, the reading might wrong.
879		-* The LiDAR probe is cover by dirty things; the reading might be wrong. In this case, need to clean the probe.
880		-* The sensor window is made by Acrylic. Don’t touch it with alcohol material. This will destroy the sensor window.
881		-
882		-= 4.  Configure LLDS12 via AT Command or LoRaWAN Downlink =
883		-
884	884	(((
885	885	(((
886	886	Use can configure LLDS12 via AT Command or LoRaWAN Downlink.

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