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86	86	* IP66 Waterproof Enclosure
87	87	* 4000mAh or 8500mAh Battery for long term use
88	88
89		-
90	90	== 1.3  Specification ==
91	91
92	92	=== 1.3.1  Rated environmental conditions ===
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130	130	* Sewer
131	131	* Bottom water level monitoring
132	132
133		-
134		-
135	135	== 1.6  Pin mapping and power on ==
136	136
137	137
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178	178	[[image:image-20220607170145-1.jpeg]]
179	179
180	180
	178	+(((
181	181	For OTAA registration, we need to set **APP EUI/ APP KEY/ DEV EUI**. Some server might no need to set APP EUI.
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182	182
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183	183	Enter these keys in the LoRaWAN Server portal. Below is TTN V3 screen shot:
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184	184
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185	185	**Add APP EUI in the application**
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186	186
187	187	[[image:image-20220610161353-4.png]]
188	188
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225	225	== 2.3  ​Uplink Payload ==
226	226
227	227	(((
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228	228	LDDS75 will uplink payload via LoRaWAN with below payload format:
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229	229
	235	+(((
230	230	Uplink payload includes in total 4 bytes.
231	231	Payload for firmware version v1.1.4. . Before v1.1.3, there is on two fields: BAT and Distance
232	232	)))
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233	233
234	234	(((
235	235
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264	264
265	265	=== 2.3.2  Distance ===
266	266
	274	+(((
267	267	Get the distance. Flat object range 280mm - 7500mm.
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268	268
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269	269	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	+)))
270	270
271	271
272	272	* If the sensor value is 0x0000, it means system doesn’t detect ultrasonic sensor.
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300	300
301	301	=== 2.3.5  Sensor Flag ===
302	302
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303	303	0x01: Detect Ultrasonic Sensor
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304	304
	318	+(((
305	305	0x00: No Ultrasonic Sensor
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306	306
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308	308
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315	315
316	316	The payload decoder function for TTN V3 is here:
317	317
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318	318	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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319	319
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841	841	* Solid ON for 5 seconds once device successful Join the network.
842	842	* Blink once when device transmit a packet.
843	843
	861	+
844	844	== 2.8  ​Firmware Change Log ==
845	845
846	846
	865	+(((
847	847	**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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848	848
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849	849
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850	850	**Firmware Upgrade Method: **[[Firmware Upgrade Instruction>>doc:Main.Firmware Upgrade Instruction for STM32 base products.WebHome]]
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851	851
852	852
853	853
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991	991	[[image:image-20220610172924-5.png]]
992	992
993	993
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994	994	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:
	1021	+)))
995	995
996	996
997	997	[[image:image-20220610172924-6.png||height="601" width="860"]]
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1015	1015	(((
1016	1016	Format: Command Code (0x01) followed by 3 bytes time value.
1017	1017
	1045	+(((
1018	1018	If the downlink payload=0100003C, it means set the END Node’s Transmit Interval to 0x00003C=60(S), while type code is 01.
	1047	+)))
1019	1019
1020	1020	* Example 1: Downlink Payload: 0100001E ~/~/ Set Transmit Interval (TDC) = 30 seconds
1021	1021	* Example 2: Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds
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1038	1038
1039	1039	Format: Command Code (0x06) followed by 3 bytes.
1040	1040
	1070	+(((
1041	1041	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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1042	1042
1043	1043	* Example 1: Downlink Payload: 06000000 ~/~/ Turn off interrupt mode
1044	1044	* Example 2: Downlink Payload: 06000003 ~/~/ Set the interrupt mode to rising edge trigger
1045	1045
	1077	+
	1078	+
1046	1046	= 4.  FAQ =
1047	1047
1048	1048	== 4.1  What is the frequency plan for LDDS75? ==
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1102	1102	* (% style="color:red" %)**4 **(%%)**: **4000mAh battery
1103	1103	* (% style="color:red" %)**8 **(%%)**:** 8500mAh battery
1104	1104
	1138	+
	1139	+
1105	1105	= 7. ​ Packing Info =
1106	1106
1107	1107
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1116	1116	* Package Size / pcs : cm
1117	1117	* Weight / pcs : g
1118	1118
	1154	+
	1155	+
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.