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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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231	231	== 2.3  ​Uplink Payload ==
232	232
233	233	(((
	231	+(((
234	234	LDDS75 will uplink payload via LoRaWAN with below payload format:
	233	+)))
235	235
	235	+(((
236	236	Uplink payload includes in total 4 bytes.
237	237	Payload for firmware version v1.1.4. . Before v1.1.3, there is on two fields: BAT and Distance
238	238	)))
	239	+)))
239	239
240	240	(((
241	241
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270	270
271	271	=== 2.3.2  Distance ===
272	272
	274	+(((
273	273	Get the distance. Flat object range 280mm - 7500mm.
	276	+)))
274	274
	278	+(((
275	275	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	+)))
276	276
277	277
278	278	* If the sensor value is 0x0000, it means system doesn’t detect ultrasonic sensor.
279	279	* 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.
280	280
	286	+
281	281	=== 2.3.3  Interrupt Pin ===
282	282
283	283	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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306	306
307	307	=== 2.3.5  Sensor Flag ===
308	308
	315	+(((
309	309	0x01: Detect Ultrasonic Sensor
	317	+)))
310	310
	319	+(((
311	311	0x00: No Ultrasonic Sensor
	321	+)))
312	312
313	313
314	314
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321	321
322	322	The payload decoder function for TTN V3 is here:
323	323
	334	+(((
324	324	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/]]
	336	+)))
325	325
326	326
327	327
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847	847	* Solid ON for 5 seconds once device successful Join the network.
848	848	* Blink once when device transmit a packet.
849	849
	862	+
	863	+
850	850	== 2.8  ​Firmware Change Log ==
851	851
852	852
	867	+(((
853	853	**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	+)))
854	854
	871	+(((
	872	+
	873	+)))
855	855
	875	+(((
856	856	**Firmware Upgrade Method: **[[Firmware Upgrade Instruction>>doc:Main.Firmware Upgrade Instruction for STM32 base products.WebHome]]
	877	+)))
857	857
858	858
859	859
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997	997	[[image:image-20220610172924-5.png]]
998	998
999	999
	1021	+(((
1000	1000	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	+)))
1001	1001
1002	1002
1003	1003	[[image:image-20220610172924-6.png||height="601" width="860"]]
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1021	1021	(((
1022	1022	Format: Command Code (0x01) followed by 3 bytes time value.
1023	1023
	1047	+(((
1024	1024	If the downlink payload=0100003C, it means set the END Node’s Transmit Interval to 0x00003C=60(S), while type code is 01.
	1049	+)))
1025	1025
1026	1026	* Example 1: Downlink Payload: 0100001E ~/~/ Set Transmit Interval (TDC) = 30 seconds
1027	1027	* Example 2: Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds