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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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131	131	* Bottom water level monitoring
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133	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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180	180
	179	+(((
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]]
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225	225	== 2.3  ​Uplink Payload ==
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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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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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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.
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	287	+
	288	+
275	275	=== 2.3.3  Interrupt Pin ===
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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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