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87	87	* 4000mAh or 8500mAh Battery for long term use
88	88
89	89
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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135	135
136	136
137	137
138		-
139		-
140	140	== 1.6  Pin mapping and power on ==
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142	142
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183	183	[[image:image-20220607170145-1.jpeg]]
184	184
185	185
186		-(((
187	187	For OTAA registration, we need to set **APP EUI/ APP KEY/ DEV EUI**. Some server might no need to set APP EUI.
188		-)))
189	189
190		-(((
191	191	Enter these keys in the LoRaWAN Server portal. Below is TTN V3 screen shot:
192		-)))
193	193
194		-(((
195	195	**Add APP EUI in the application**
196		-)))
197	197
198	198	[[image:image-20220610161353-4.png]]
199	199
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236	236	== 2.3  ​Uplink Payload ==
237	237
238	238	(((
239		-(((
240	240	LDDS75 will uplink payload via LoRaWAN with below payload format:
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242	242
243		-(((
244	244	Uplink payload includes in total 4 bytes.
245	245	Payload for firmware version v1.1.4. . Before v1.1.3, there is on two fields: BAT and Distance
246	246	)))
247		-)))
248	248
249	249	(((
250	250
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279	279
280	280	=== 2.3.2  Distance ===
281	281
282		-(((
283	283	Get the distance. Flat object range 280mm - 7500mm.
284		-)))
285	285
286		-(((
287	287	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.**
288		-)))
289	289
290	290
291	291	* If the sensor value is 0x0000, it means system doesn’t detect ultrasonic sensor.
292	292	* 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.
293	293
294		-
295		-
296		-
297		-
298	298	=== 2.3.3  Interrupt Pin ===
299	299
300	300	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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323	323
324	324	=== 2.3.5  Sensor Flag ===
325	325
326		-(((
327	327	0x01: Detect Ultrasonic Sensor
328		-)))
329	329
330		-(((
331	331	0x00: No Ultrasonic Sensor
332		-)))
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342	342
343	343	The payload decoder function for TTN V3 is here:
344	344
345		-(((
346	346	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/]]
347		-)))
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870	870	* Solid ON for 5 seconds once device successful Join the network.
871	871	* Blink once when device transmit a packet.
872	872
873		-
874		-
875		-
876		-
877	877	== 2.8  ​Firmware Change Log ==
878	878
879	879
880		-(((
881	881	**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/]]
882		-)))
883	883
884		-(((
885		-
886		-)))
887	887
888		-(((
889	889	**Firmware Upgrade Method: **[[Firmware Upgrade Instruction>>doc:Main.Firmware Upgrade Instruction for STM32 base products.WebHome]]
890		-)))
891	891
892	892
893	893
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1031	1031	[[image:image-20220610172924-5.png]]
1032	1032
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1034		-(((
1035	1035	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:
1036		-)))
1037	1037
1038	1038
1039	1039	[[image:image-20220610172924-6.png||height="601" width="860"]]
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1057	1057	(((
1058	1058	Format: Command Code (0x01) followed by 3 bytes time value.
1059	1059
1060		-(((
1061	1061	If the downlink payload=0100003C, it means set the END Node’s Transmit Interval to 0x00003C=60(S), while type code is 01.
1062		-)))
1063	1063
1064	1064	* Example 1: Downlink Payload: 0100001E ~/~/ Set Transmit Interval (TDC) = 30 seconds
1065	1065	* Example 2: Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds
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1082	1082
1083	1083	Format: Command Code (0x06) followed by 3 bytes.
1084	1084
1085		-(((
1086	1086	This means that the interrupt mode of the end node is set to 0x000003=3 (rising edge trigger), and the type code is 06.
1087		-)))
1088	1088
1089	1089	* Example 1: Downlink Payload: 06000000 ~/~/ Turn off interrupt mode
1090	1090	* Example 2: Downlink Payload: 06000003 ~/~/ Set the interrupt mode to rising edge trigger
1091	1091
1092		-
1093	1093	= 4.  FAQ =
1094	1094
1095	1095	== 4.1  What is the frequency plan for LDDS75? ==
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1149	1149	* (% style="color:red" %)**4 **(%%)**: **4000mAh battery
1150	1150	* (% style="color:red" %)**8 **(%%)**:** 8500mAh battery
1151	1151
1152		-
1153	1153	= 7. ​ Packing Info =
1154	1154
1155	1155
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1164	1164	* Package Size / pcs : cm
1165	1165	* Weight / pcs : g
1166	1166
1167		-
1168	1168	= 8.  ​Support =
1169	1169
1170	1170	* 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.