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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		-
93	93	== 1.3  Specification ==
94	94
95	95	=== 1.3.1  Rated environmental conditions ===
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287	287	* If the sensor value is 0x0000, it means system doesn’t detect ultrasonic sensor.
288	288	* 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.
289	289
	286	+
290	290	=== 2.3.3  Interrupt Pin ===
291	291
292	292	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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862	862	* Solid ON for 5 seconds once device successful Join the network.
863	863	* Blink once when device transmit a packet.
864	864
	862	+
	863	+
865	865	== 2.8  ​Firmware Change Log ==
866	866
867	867
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1019	1019	[[image:image-20220610172924-5.png]]
1020	1020
1021	1021
1022		-(((
1023	1023	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		-)))
1025	1025
1026	1026
1027	1027	[[image:image-20220610172924-6.png||height="601" width="860"]]
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1045	1045	(((
1046	1046	Format: Command Code (0x01) followed by 3 bytes time value.
1047	1047
1048		-(((
1049	1049	If the downlink payload=0100003C, it means set the END Node’s Transmit Interval to 0x00003C=60(S), while type code is 01.
1050		-)))
1051	1051
1052	1052	* Example 1: Downlink Payload: 0100001E ~/~/ Set Transmit Interval (TDC) = 30 seconds
1053	1053	* Example 2: Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds
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1070	1070
1071	1071	Format: Command Code (0x06) followed by 3 bytes.
1072	1072
1073		-(((
1074	1074	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		-)))
1076	1076
1077	1077	* Example 1: Downlink Payload: 06000000 ~/~/ Turn off interrupt mode
1078	1078	* Example 2: Downlink Payload: 06000003 ~/~/ Set the interrupt mode to rising edge trigger
1079	1079
1080		-
1081	1081	= 4.  FAQ =
1082	1082
1083	1083	== 4.1  What is the frequency plan for LDDS75? ==
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1137	1137	* (% style="color:red" %)**4 **(%%)**: **4000mAh battery
1138	1138	* (% style="color:red" %)**8 **(%%)**:** 8500mAh battery
1139	1139
1140		-
1141	1141	= 7. ​ Packing Info =
1142	1142
1143	1143
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1152	1152	* Package Size / pcs : cm
1153	1153	* Weight / pcs : g
1154	1154
1155		-
1156	1156	= 8.  ​Support =
1157	1157
1158	1158	* 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.