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804	804
805	805	== 2.7  LED Indicator ==
806	806
807		-The LDDS75 has an internal LED which is to show the status of different state.
	807	+The LLDS12 has an internal LED which is to show the status of different state.
808	808
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.
	809	+* The sensor is detected when the device is turned on, and it will flash 4 times quickly when it is detected.
813	813	* Blink once when device transmit a packet.
814	814
815		-
816		-
817	817	== 2.8  ​Firmware Change Log ==
818	818
819	819
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/]]
	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/]]
821	821
822	822
823	823	**Firmware Upgrade Method: **[[Firmware Upgrade Instruction>>doc:Main.Firmware Upgrade Instruction for STM32 base products.WebHome]]
...	...	@@ -824,36 +824,6 @@
824	824
825	825
826	826
827		-== 2.9  Mechanical ==
828		-
829		-
830		-[[image:image-20220610172003-1.png]]
831		-
832		-[[image:image-20220610172003-2.png]]
833		-
834		-
835		-== 2.10  Battery Analysis  ==
836		-
837		-=== 2.10.1  Battery Type ===
838		-
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.
840		-
841		-
842		-The battery related documents as below:
843		-
844		-* (((
845		-[[ Battery Dimension>>url:http://www.dragino.com/downloads/index.php?dir=datasheet/Battery/&file=LSN50-Battery-Dimension.pdf]],
846		-)))
847		-* (((
848		-[[Lithium-Thionyl Chloride Battery  datasheet>>url:https://www.dragino.com/downloads/downloads/datasheet/Battery/ER26500/ER26500_Datasheet-EN.pdf]],
849		-)))
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]]
852		-)))
853		-
854		- [[image:image-20220610172400-3.png]]
855		-
856		-
857	857	= 3.  LiDAR ToF Measurement =
858	858
859	859	== 3.1 Principle of Distance Measurement ==