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86	86	* IP66 Waterproof Enclosure
87	87	* 4000mAh or 8500mAh Battery for long term use
88	88
	89	+
	90	+
	91	+
	92	+
89	89	== 1.3  Specification ==
90	90
91	91	=== 1.3.1  Rated environmental conditions ===
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283	283	* If the sensor value is 0x0000, it means system doesn’t detect ultrasonic sensor.
284	284	* 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.
285	285
286		-
287	287	=== 2.3.3  Interrupt Pin ===
288	288
289	289	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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859	859	* Solid ON for 5 seconds once device successful Join the network.
860	860	* Blink once when device transmit a packet.
861	861
862		-
863		-
864	864	== 2.8  ​Firmware Change Log ==
865	865
866	866
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1018	1018	[[image:image-20220610172924-5.png]]
1019	1019
1020	1020
	1022	+(((
1021	1021	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:
	1024	+)))
1022	1022
1023	1023
1024	1024	[[image:image-20220610172924-6.png||height="601" width="860"]]
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1042	1042	(((
1043	1043	Format: Command Code (0x01) followed by 3 bytes time value.
1044	1044
	1048	+(((
1045	1045	If the downlink payload=0100003C, it means set the END Node’s Transmit Interval to 0x00003C=60(S), while type code is 01.
	1050	+)))
1046	1046
1047	1047	* Example 1: Downlink Payload: 0100001E ~/~/ Set Transmit Interval (TDC) = 30 seconds
1048	1048	* Example 2: Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds
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1065	1065
1066	1066	Format: Command Code (0x06) followed by 3 bytes.
1067	1067
	1073	+(((
1068	1068	This means that the interrupt mode of the end node is set to 0x000003=3 (rising edge trigger), and the type code is 06.
	1075	+)))
1069	1069
1070	1070	* Example 1: Downlink Payload: 06000000 ~/~/ Turn off interrupt mode
1071	1071	* Example 2: Downlink Payload: 06000003 ~/~/ Set the interrupt mode to rising edge trigger
1072	1072
	1080	+
1073	1073	= 4.  FAQ =
1074	1074
1075	1075	== 4.1  What is the frequency plan for LDDS75? ==
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1129	1129	* (% style="color:red" %)**4 **(%%)**: **4000mAh battery
1130	1130	* (% style="color:red" %)**8 **(%%)**:** 8500mAh battery
1131	1131
	1140	+
1132	1132	= 7. ​ Packing Info =
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1134	1134
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1143	1143	* Package Size / pcs : cm
1144	1144	* Weight / pcs : g
1145	1145
	1155	+
1146	1146	= 8.  ​Support =
1147	1147
1148	1148	* 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.