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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]]
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819	819
820	820
821	821
	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	+
822	822	= 3.  LiDAR ToF Measurement =
823	823
824	824	== 3.1 Principle of Distance Measurement ==

image-20220610172400-3.png

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