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86	86	* IP66 Waterproof Enclosure
87	87	* 4000mAh or 8500mAh Battery for long term use
88	88
89		-
90		-
91	91	== 1.3  Specification ==
92	92
93	93	=== 1.3.1  Rated environmental conditions ===
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95	95	[[image:image-20220610154839-1.png]]
96	96
97	97	(((
98		-**Remarks: (1) a. When the ambient temperature is 0-39 ℃, the maximum humidity is 90% (non-condensing);  b. When the ambient temperature is 40-50 ℃, the highest humidity is the highest humidity in the natural world at the current temperature (no condensation)**
	96	+**Remarks: (1) a. When the ambient temperature is 0-39 ℃, the maximum humidity is 90% (non-condensing);  b. When the ambient temperature is 40-50 ℃, the highest humidity is the highest humidity in the natural world at the current temperature (no condensation)**
99	99	)))
100	100
101	101
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110	110
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	111	+(((
113	113	**(2)** **The object to be tested is a "corrugated cardboard box" perpendicular to the central axis of 0 °, and the length * width is 60cm * 50cm.**
	113	+)))
114	114
115	115
116	116	[[image:1654852175653-550.png]](% style="display:none" %) ** **
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175	175	[[image:image-20220607170145-1.jpeg]]
176	176
177	177
	178	+(((
178	178	For OTAA registration, we need to set **APP EUI/ APP KEY/ DEV EUI**. Some server might no need to set APP EUI.
	180	+)))
179	179
	182	+(((
180	180	Enter these keys in the LoRaWAN Server portal. Below is TTN V3 screen shot:
	184	+)))
181	181
	186	+(((
182	182	**Add APP EUI in the application**
	188	+)))
183	183
184	184	[[image:image-20220610161353-4.png]]
185	185
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222	222	== 2.3  ​Uplink Payload ==
223	223
224	224	(((
	231	+(((
225	225	LDDS75 will uplink payload via LoRaWAN with below payload format:
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226	226
	235	+(((
227	227	Uplink payload includes in total 4 bytes.
228	228	Payload for firmware version v1.1.4. . Before v1.1.3, there is on two fields: BAT and Distance
229	229	)))
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230	230
231	231	(((
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261	261
262	262	=== 2.3.2  Distance ===
263	263
	274	+(((
264	264	Get the distance. Flat object range 280mm - 7500mm.
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265	265
	278	+(((
266	266	For example, if the data you get from the register is 0x0B 0x05, the distance between the sensor and the measured object is(% style="color:#4472c4" %)** 0B05(H) = 2821 (D) = 2821 mm.**
	280	+)))
267	267
268	268
269	269	* If the sensor value is 0x0000, it means system doesn’t detect ultrasonic sensor.
270	270	* 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.
271	271
	286	+
272	272	=== 2.3.3  Interrupt Pin ===
273	273
274	274	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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297	297
298	298	=== 2.3.5  Sensor Flag ===
299	299
	315	+(((
300	300	0x01: Detect Ultrasonic Sensor
	317	+)))
301	301
	319	+(((
302	302	0x00: No Ultrasonic Sensor
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312	312
313	313	The payload decoder function for TTN V3 is here:
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	334	+(((
315	315	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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838	838	* Solid ON for 5 seconds once device successful Join the network.
839	839	* Blink once when device transmit a packet.
840	840
	862	+
	863	+
841	841	== 2.8  ​Firmware Change Log ==
842	842
843	843
	867	+(((
844	844	**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/]]
	869	+)))
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	871	+(((
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847	847	**Firmware Upgrade Method: **[[Firmware Upgrade Instruction>>doc:Main.Firmware Upgrade Instruction for STM32 base products.WebHome]]
	877	+)))
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988	988	[[image:image-20220610172924-5.png]]
989	989
990	990
	1021	+(((
991	991	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:
	1023	+)))
992	992
993	993
994	994	[[image:image-20220610172924-6.png||height="601" width="860"]]
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1012	1012	(((
1013	1013	Format: Command Code (0x01) followed by 3 bytes time value.
1014	1014
	1047	+(((
1015	1015	If the downlink payload=0100003C, it means set the END Node’s Transmit Interval to 0x00003C=60(S), while type code is 01.
	1049	+)))
1016	1016
1017	1017	* Example 1: Downlink Payload: 0100001E ~/~/ Set Transmit Interval (TDC) = 30 seconds
1018	1018	* Example 2: Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds
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1035	1035
1036	1036	Format: Command Code (0x06) followed by 3 bytes.
1037	1037
	1072	+(((
1038	1038	This means that the interrupt mode of the end node is set to 0x000003=3 (rising edge trigger), and the type code is 06.
	1074	+)))
1039	1039
1040	1040	* Example 1: Downlink Payload: 06000000 ~/~/ Turn off interrupt mode
1041	1041	* Example 2: Downlink Payload: 06000003 ~/~/ Set the interrupt mode to rising edge trigger
1042	1042
1043	1043
	1080	+
	1081	+
1044	1044	= 4.  FAQ =
1045	1045
1046	1046	== 4.1  What is the frequency plan for LDDS75? ==
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1100	1100	* (% style="color:red" %)**4 **(%%)**: **4000mAh battery
1101	1101	* (% style="color:red" %)**8 **(%%)**:** 8500mAh battery
1102	1102
1103		-
1104	1104	= 7. ​ Packing Info =
1105	1105
1106	1106
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1115	1115	* Package Size / pcs : cm
1116	1116	* Weight / pcs : g
1117	1117
1118		-
1119	1119	= 8.  ​Support =
1120	1120
1121	1121	* 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.