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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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110	110
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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.**
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114	114
115	115
116	116	[[image:1654852175653-550.png]](% style="display:none" %) ** **
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129	129	* Sewer
130	130	* Bottom water level monitoring
131	131
132		-
133		-
134		-
135	135	== 1.6  Pin mapping and power on ==
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137	137
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178	178	[[image:image-20220607170145-1.jpeg]]
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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
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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
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233	233
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264	264
265	265	=== 2.3.2  Distance ===
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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.**
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270	270
271	271
272	272	* If the sensor value is 0x0000, it means system doesn’t detect ultrasonic sensor.
273	273	* 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.
274	274
	286	+
275	275	=== 2.3.3  Interrupt Pin ===
276	276
277	277	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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300	300
301	301	=== 2.3.5  Sensor Flag ===
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303	303	0x01: Detect Ultrasonic Sensor
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304	304
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305	305	0x00: No Ultrasonic Sensor
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315	315
316	316	The payload decoder function for TTN V3 is here:
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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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841	841	* Solid ON for 5 seconds once device successful Join the network.
842	842	* Blink once when device transmit a packet.
843	843
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	863	+
844	844	== 2.8  ​Firmware Change Log ==
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846	846
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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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850	850	**Firmware Upgrade Method: **[[Firmware Upgrade Instruction>>doc:Main.Firmware Upgrade Instruction for STM32 base products.WebHome]]
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851	851
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991	991	[[image:image-20220610172924-5.png]]
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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:
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995	995
996	996
997	997	[[image:image-20220610172924-6.png||height="601" width="860"]]
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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
1046		-
1047	1047	= 4.  FAQ =
1048	1048
1049	1049	== 4.1  What is the frequency plan for LDDS75? ==
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1103	1103	* (% style="color:red" %)**4 **(%%)**: **4000mAh battery
1104	1104	* (% style="color:red" %)**8 **(%%)**:** 8500mAh battery
1105	1105
1106		-
1107	1107	= 7. ​ Packing Info =
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1118	1118	* Package Size / pcs : cm
1119	1119	* Weight / pcs : g
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1121		-
1122	1122	= 8.  ​Support =
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1124	1124	* 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.