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634	634	[[image:1654506634463-199.png]] ​
635	635
636	636	(((
637		-(((
638	638	Choose the proper measuring position. Avoid the probe to touch rocks or hard things. Split the surface soil according to the measured deep. Keep the measured as original density. Vertical insert the probe into the soil to be measured. Make sure not shake when inserting.
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640		-)))
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643	643
644	644	[[image:1654506665940-119.png]]
645	645
646		-(((
647	647	Dig a hole with diameter > 20CM.
648		-)))
649	649
650		-(((
651	651	Horizontal insert the probe to the soil and fill the hole for long term measurement.
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653	653
654	654
655	655	== 2.10 ​Firmware Change Log ==
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657		-(((
658	658	**Firmware download link:**
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660	660
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662	662	[[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/]]
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670	670	**Firmware Upgrade Method: **[[Firmware Upgrade Instruction>>doc:Main.Firmware Upgrade Instruction for STM32 base products.WebHome]]
671		-)))
672	672
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676	676
677		-(((
678	678	**V1.0.**
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680	680
681		-(((
682	682	Release
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684	684
685	685
686	686	== 2.11 ​Battery Analysis ==
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687	687
688	688	=== 2.11.1 ​Battery Type ===
689	689
690		-(((
691	691	The LSE01 battery is a combination of a 4000mAh 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.
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693	693
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	670	+
695	695	The battery is designed to last for more than 5 years for the LSN50.
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	673	+
698	698	(((
699		-(((
700	700	The battery-related documents are as below:
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702		-)))
703	703
704	704	* (((
705	705	[[Battery Dimension>>url:http://www.dragino.com/downloads/index.php?dir=datasheet/Battery/&file=LSN50-Battery-Dimension.pdf]],
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717	717
718	718	=== 2.11.2 ​Battery Note ===
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721	721	The Li-SICO battery is designed for small current / long period application. It is not good to use a high current, short period transmit method. The recommended minimum period for use of this battery is 5 minutes. If you use a shorter period time to transmit LoRa, then the battery life may be decreased.
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723	723
724	724
725	725
726	726	=== 2.11.3 Replace the battery ===
727	727
728		-(((
729	729	If Battery is lower than 2.7v, user should replace the battery of LSE01.
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731	731
732		-(((
733	733	You can change the battery in the LSE01.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.
734		-)))
735	735
736		-(((
	704	+
737	737	The default battery pack of LSE01 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)
738		-)))
739	739
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742	742	= 3. ​Using the AT Commands =
743	743
744	744	== 3.1 Access AT Commands ==