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3	3
4	4	**Contents:**
5	5
	6	+{{toc/}}
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7	7
8	8
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10	10
11	11
12	12
	14	+
13	13	= 1.  Introduction =
14	14
15	15	== 1.1 ​ What is LoRaWAN Distance Detection Sensor ==
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33	33	Each LDDS75 pre-loads with a set of unique keys for LoRaWAN registrations, register these keys to local LoRaWAN server and it will auto connect if there is network coverage, after power on.
34	34
35	35
36		-(% style="color:#4472c4" %) * (%%)Actually lifetime depends on network coverage and uplink interval and other factors
	38	+(% style="color:#4472c4" %) * (%%)Actually lifetime depends on network coverage and uplink interval and other factors.
37	37	)))
38	38	)))
39	39
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57	57	* IP66 Waterproof Enclosure
58	58	* 4000mAh or 8500mAh Battery for long term use
59	59
	62	+
60	60	== 1.3  Specification ==
61	61
62	62	=== 1.3.1  Rated environmental conditions ===
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78	78	[[image:1654852253176-749.png]]
79	79
80	80
	84	+
81	81	**(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.**
82	82
83	83
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97	97	* Sewer
98	98	* Bottom water level monitoring
99	99
	104	+
	105	+
100	100	== 1.6  Pin mapping and power on ==
101	101
102	102
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205	205	**Size (bytes)**
206	206	)))|=(% style="width: 62.5px;" %)**2**|=**2**|=1|=2|=**1**
207	207	|(% style="width:62.5px" %)**Value**|(% style="width:62.5px" %)[[BAT>>||anchor="H2.3.1A0BatteryInfo"]]|(((
208		-[[Distance>>||anchor="H2.3.3A0Distance"]]
	214	+[[Distance>>||anchor="H2.3.2A0Distance"]]
209	209
210	210	(unit: mm)
211		-)))|[[Digital Interrupt (Optional)>>||anchor="H2.3.4A0Distancesignalstrength"]]|(((
212		-[[Temperature (Optional )>>||anchor="H2.3.5A0InterruptPin"]]
213		-)))|[[Sensor Flag>>path:#Sensor_Flag]]
	217	+)))|[[Digital Interrupt (Optional)>>||anchor="H2.3.3A0InterruptPin"]]|(((
	218	+[[Temperature (Optional )>>||anchor="H2.3.4A0DS18B20Temperaturesensor"]]
	219	+)))|[[Sensor Flag>>||anchor="H2.3.5A0SensorFlag"]]
214	214
215	215	[[image:1654850511545-399.png]]
216	216
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237	237	* If the sensor value is 0x0000, it means system doesn’t detect ultrasonic sensor.
238	238	* 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.
239	239
	246	+
	247	+
	248	+
240	240	=== 2.3.3  Interrupt Pin ===
241	241
242		-This data field shows if this packet is generated by interrupt or not. [[Click here>>||anchor="H4.2A0SetInterruptMode"]] for the hardware and software set up.
	251	+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.
243	243
244	244	**Example:**
245	245
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270	270	0x00: No Ultrasonic Sensor
271	271
272	272
273		-===
274		-(% style="color:inherit; font-family:inherit" %)2.3.6  Decode payload in The Things Network(%%) ===
275	275
	283	+=== 2.3.6  Decode payload in The Things Network ===
	284	+
276	276	While using TTN network, you can add the payload format to decode the payload.
277	277
278	278
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806	806	* Solid ON for 5 seconds once device successful Join the network.
807	807	* Blink once when device transmit a packet.
808	808
	818	+
	819	+
	820	+
809	809	== 2.8  ​Firmware Change Log ==
810	810
811	811
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863	863
864	864
865	865
866		-= 3.  Configure LLDS12 via AT Command or LoRaWAN Downlink =
	878	+= 3.  Configure LDDS75 via AT Command or LoRaWAN Downlink =
867	867
868	868	(((
869	869	(((
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1006	1006	* Example 1: Downlink Payload: 06000000 ~/~/ Turn off interrupt mode
1007	1007	* Example 2: Downlink Payload: 06000003 ~/~/ Set the interrupt mode to rising edge trigger
1008	1008
1009		-
1010		-
1011		-
1012	1012	= 4.  FAQ =
1013	1013
1014	1014	== 4.1  What is the frequency plan for LDDS75? ==
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1049	1049	= 6.  Order Info =
1050	1050
1051	1051
1052		-Part Number: (% style="color:blue" %)**LDDS75-XX-YY**
	1061	+Part Number **:** (% style="color:blue" %)**LDDS75-XX-YY**
1053	1053
1054	1054
1055		-(% style="color:blue" %)**XX**(%%): The default frequency band
	1064	+(% style="color:blue" %)**XX**(%%)**: **The default frequency band
1056	1056
1057		-* (% style="color:red" %)**AS923**(%%):  LoRaWAN AS923 band
1058		-* (% style="color:red" %)**AU915**(%%): LoRaWAN AU915 band
1059		-* (% style="color:red" %)**EU433**(%%): LoRaWAN EU433 band
1060		-* (% style="color:red" %)**EU868**(%%): LoRaWAN EU868 band
1061		-* (% style="color:red" %)**KR920**(%%): LoRaWAN KR920 band
1062		-* (% style="color:red" %)**US915**(%%): LoRaWAN US915 band
1063		-* (% style="color:red" %)**IN865**(%%):  LoRaWAN IN865 band
1064		-* (% style="color:red" %)**CN470**(%%): LoRaWAN CN470 band
	1066	+* (% style="color:red" %)**AS923 **(%%)**:** LoRaWAN AS923 band
	1067	+* (% style="color:red" %)**AU915 **(%%)**:** LoRaWAN AU915 band
	1068	+* (% style="color:red" %)**EU433 **(%%)**:** LoRaWAN EU433 band
	1069	+* (% style="color:red" %)**EU868 **(%%)**:** LoRaWAN EU868 band
	1070	+* (% style="color:red" %)**KR920 **(%%)**:** LoRaWAN KR920 band
	1071	+* (% style="color:red" %)**US915 **(%%)**:** LoRaWAN US915 band
	1072	+* (% style="color:red" %)**IN865 **(%%)**:**  LoRaWAN IN865 band
	1073	+* (% style="color:red" %)**CN470 **(%%)**:** LoRaWAN CN470 band
1065	1065
1066	1066	(% style="color:blue" %)**YY**(%%): Battery Option
1067	1067
1068		-* (% style="color:red" %)**4**(%%): 4000mAh battery
1069		-* (% style="color:red" %)**8**(%%): 8500mAh battery
	1077	+* (% style="color:red" %)**4 **(%%)**: **4000mAh battery
	1078	+* (% style="color:red" %)**8 **(%%)**:** 8500mAh battery
1070	1070
1071	1071	= 7. ​ Packing Info =
1072	1072