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86	86	* IP66 Waterproof Enclosure
87	87	* 4000mAh or 8500mAh Battery for long term use
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89	89	== 1.3  Specification ==
90	90
91	91	=== 1.3.1  Rated environmental conditions ===
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129	129	* Sewer
130	130	* Bottom water level monitoring
131	131
132		-
133	133	== 1.6  Pin mapping and power on ==
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135	135
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284	284	* If the sensor value is 0x0000, it means system doesn’t detect ultrasonic sensor.
285	285	* If the sensor value lower than 0x0118 (280mm), the sensor value will be invalid. Since v1.1.4, all value lower than 280mm will be set to 0x0014(20mm) which means the value is invalid.
286	286
287		-
288		-
289	289	=== 2.3.3  Interrupt Pin ===
290	290
291	291	This data field shows if this packet is generated by interrupt or not. [[Click here>>||anchor="H3.3A0SetInterruptMode"]] for the hardware and software set up.
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333	333
334	334	The payload decoder function for TTN V3 is here:
335	335
	337	+(((
336	336	LDDS75 TTN V3 Payload Decoder: [[http:~~/~~/www.dragino.com/downloads/index.php?dir=LoRa_End_Node/LDDS75/Payload_Decoder/>>url:http://www.dragino.com/downloads/index.php?dir=LoRa_End_Node/LSE01/Payload_Decoder/]]
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862	862	== 2.8  ​Firmware Change Log ==
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865	865	**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/]]
	870	+)))
866	866
	872	+(((
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	876	+(((
868	868	**Firmware Upgrade Method: **[[Firmware Upgrade Instruction>>doc:Main.Firmware Upgrade Instruction for STM32 base products.WebHome]]
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869	869
870	870
871	871
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1009	1009	[[image:image-20220610172924-5.png]]
1010	1010
1011	1011
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1012	1012	In the PC, you need to set the serial baud rate to (% style="color:green" %)**9600**(%%) to access the serial console for LDDS75. LDDS75 will output system info once power on as below:
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1013	1013
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1015	1015	[[image:image-20220610172924-6.png||height="601" width="860"]]
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1033	1033	(((
1034	1034	Format: Command Code (0x01) followed by 3 bytes time value.
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1036	1036	If the downlink payload=0100003C, it means set the END Node’s Transmit Interval to 0x00003C=60(S), while type code is 01.
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1037	1037
1038	1038	* Example 1: Downlink Payload: 0100001E ~/~/ Set Transmit Interval (TDC) = 30 seconds
1039	1039	* Example 2: Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds
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1056	1056
1057	1057	Format: Command Code (0x06) followed by 3 bytes.
1058	1058
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1059	1059	This means that the interrupt mode of the end node is set to 0x000003=3 (rising edge trigger), and the type code is 06.
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1060	1060
1061	1061	* Example 1: Downlink Payload: 06000000 ~/~/ Turn off interrupt mode
1062	1062	* Example 2: Downlink Payload: 06000003 ~/~/ Set the interrupt mode to rising edge trigger
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	1080	+
1064	1064	= 4.  FAQ =
1065	1065
1066	1066	== 4.1  What is the frequency plan for LDDS75? ==
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1120	1120	* (% style="color:red" %)**4 **(%%)**: **4000mAh battery
1121	1121	* (% style="color:red" %)**8 **(%%)**:** 8500mAh battery
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1123	1123	= 7. ​ Packing Info =
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1134	1134	* Package Size / pcs : cm
1135	1135	* Weight / pcs : g
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1137	1137	= 8.  ​Support =
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1139	1139	* 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.