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87	87	* 4000mAh or 8500mAh Battery for long term use
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90	90	== 1.3  Specification ==
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92	92	=== 1.3.1  Rated environmental conditions ===
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135	135	== 1.6  Pin mapping and power on ==
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292	292	=== 2.3.3  Interrupt Pin ===
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294	294	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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318	318	=== 2.3.5  Sensor Flag ===
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320	320	0x01: Detect Ultrasonic Sensor
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322	322	0x00: No Ultrasonic Sensor
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333	333	The payload decoder function for TTN V3 is here:
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335	335	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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858	858	* Solid ON for 5 seconds once device successful Join the network.
859	859	* Blink once when device transmit a packet.
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861	861	== 2.8  ​Firmware Change Log ==
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864	864	**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/]]
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867	867	**Firmware Upgrade Method: **[[Firmware Upgrade Instruction>>doc:Main.Firmware Upgrade Instruction for STM32 base products.WebHome]]
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1008	1008	[[image:image-20220610172924-5.png]]
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1011	1011	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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1014	1014	[[image:image-20220610172924-6.png||height="601" width="860"]]
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1032	1032	(((
1033	1033	Format: Command Code (0x01) followed by 3 bytes time value.
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1035	1035	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	* Example 1: Downlink Payload: 0100001E ~/~/ Set Transmit Interval (TDC) = 30 seconds
1038	1038	* Example 2: Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds
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1043	1043	)))
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1045	1045	== 3.3  Set Interrupt Mode ==
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1047	1047	Feature, Set Interrupt mode for GPIO_EXIT.
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1056	1056	Format: Command Code (0x06) followed by 3 bytes.
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1058	1058	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	* Example 1: Downlink Payload: 06000000 ~/~/ Turn off interrupt mode
1061	1061	* Example 2: Downlink Payload: 06000003 ~/~/ Set the interrupt mode to rising edge trigger
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1063	1063	= 4.  FAQ =
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1065	1065	== 4.1  What is the frequency plan for LDDS75? ==
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1119	1119	* (% style="color:red" %)**4 **(%%)**: **4000mAh battery
1120	1120	* (% style="color:red" %)**8 **(%%)**:** 8500mAh battery
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1122	1122	= 7. ​ Packing Info =
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1133	1133	* Package Size / pcs : cm
1134	1134	* Weight / pcs : g
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1136	1136	= 8.  ​Support =
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1138	1138	* 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.