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88	88
89	89
90	90
91		-
92		-
93	93	== 1.3  Specification ==
94	94
95	95	=== 1.3.1  Rated environmental conditions ===
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112	112
113	113
114	114
115		-(((
116	116	**(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.**
117		-)))
118	118
119	119
120	120	[[image:1654852175653-550.png]](% style="display:none" %) ** **
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133	133	* Sewer
134	134	* Bottom water level monitoring
135	135
	132	+
	133	+
	134	+
136	136	== 1.6  Pin mapping and power on ==
137	137
138	138
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179	179	[[image:image-20220607170145-1.jpeg]]
180	180
181	181
182		-(((
183	183	For OTAA registration, we need to set **APP EUI/ APP KEY/ DEV EUI**. Some server might no need to set APP EUI.
184		-)))
185	185
186		-(((
187	187	Enter these keys in the LoRaWAN Server portal. Below is TTN V3 screen shot:
188		-)))
189	189
190		-(((
191	191	**Add APP EUI in the application**
192		-)))
193	193
194	194	[[image:image-20220610161353-4.png]]
195	195
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232	232	== 2.3  ​Uplink Payload ==
233	233
234	234	(((
235		-(((
236	236	LDDS75 will uplink payload via LoRaWAN with below payload format:
237		-)))
238	238
239		-(((
240	240	Uplink payload includes in total 4 bytes.
241	241	Payload for firmware version v1.1.4. . Before v1.1.3, there is on two fields: BAT and Distance
242	242	)))
243		-)))
244	244
245	245	(((
246	246
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275	275
276	276	=== 2.3.2  Distance ===
277	277
278		-(((
279	279	Get the distance. Flat object range 280mm - 7500mm.
280		-)))
281	281
282		-(((
283	283	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.**
284		-)))
285	285
286	286
287	287	* If the sensor value is 0x0000, it means system doesn’t detect ultrasonic sensor.
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315	315
316	316	=== 2.3.5  Sensor Flag ===
317	317
318		-(((
319	319	0x01: Detect Ultrasonic Sensor
320		-)))
321	321
322		-(((
323	323	0x00: No Ultrasonic Sensor
324		-)))
325	325
326	326
327	327
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334	334
335	335	The payload decoder function for TTN V3 is here:
336	336
337		-(((
338	338	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/]]
339		-)))
340	340
341	341
342	342
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865	865	== 2.8  ​Firmware Change Log ==
866	866
867	867
868		-(((
869	869	**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/]]
870		-)))
871	871
872		-(((
873		-
874		-)))
875	875
876		-(((
877	877	**Firmware Upgrade Method: **[[Firmware Upgrade Instruction>>doc:Main.Firmware Upgrade Instruction for STM32 base products.WebHome]]
878		-)))
879	879
880	880
881	881
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1019	1019	[[image:image-20220610172924-5.png]]
1020	1020
1021	1021
1022		-(((
1023	1023	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:
1024		-)))
1025	1025
1026	1026
1027	1027	[[image:image-20220610172924-6.png||height="601" width="860"]]
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1045	1045	(((
1046	1046	Format: Command Code (0x01) followed by 3 bytes time value.
1047	1047
1048		-(((
1049	1049	If the downlink payload=0100003C, it means set the END Node’s Transmit Interval to 0x00003C=60(S), while type code is 01.
1050		-)))
1051	1051
1052	1052	* Example 1: Downlink Payload: 0100001E ~/~/ Set Transmit Interval (TDC) = 30 seconds
1053	1053	* Example 2: Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds
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1070	1070
1071	1071	Format: Command Code (0x06) followed by 3 bytes.
1072	1072
1073		-(((
1074	1074	This means that the interrupt mode of the end node is set to 0x000003=3 (rising edge trigger), and the type code is 06.
1075		-)))
1076	1076
1077	1077	* Example 1: Downlink Payload: 06000000 ~/~/ Turn off interrupt mode
1078	1078	* Example 2: Downlink Payload: 06000003 ~/~/ Set the interrupt mode to rising edge trigger