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3	3
4	4	**Contents:**
5	5
6		-{{toc/}}
7	7
8	8
9	9
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11	11
12	12
13	13
14		-
15	15	= 1.  Introduction =
16	16
17	17	== 1.1 ​ What is LoRaWAN Distance Detection Sensor ==
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35	35	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.
36	36
37	37
38		-(% style="color:#4472c4" %) * (%%)Actually lifetime depends on network coverage and uplink interval and other factors.
	36	+(% style="color:#4472c4" %) * (%%)Actually lifetime depends on network coverage and uplink interval and other factors
39	39	)))
40	40	)))
41	41
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59	59	* IP66 Waterproof Enclosure
60	60	* 4000mAh or 8500mAh Battery for long term use
61	61
62		-
63	63	== 1.3  Specification ==
64	64
65	65	=== 1.3.1  Rated environmental conditions ===
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81	81	[[image:1654852253176-749.png]]
82	82
83	83
84		-
85	85	**(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.**
86	86
87	87
...	...	@@ -101,8 +101,6 @@
101	101	* Sewer
102	102	* Bottom water level monitoring
103	103
104		-
105		-
106	106	== 1.6  Pin mapping and power on ==
107	107
108	108
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211	211	**Size (bytes)**
212	212	)))|=(% style="width: 62.5px;" %)**2**|=**2**|=1|=2|=**1**
213	213	|(% style="width:62.5px" %)**Value**|(% style="width:62.5px" %)[[BAT>>||anchor="H2.3.1A0BatteryInfo"]]|(((
214		-[[Distance>>||anchor="H2.3.2A0Distance"]]
	208	+[[Distance>>||anchor="H2.3.3A0Distance"]]
215	215
216	216	(unit: mm)
217		-)))|[[Digital Interrupt (Optional)>>||anchor="H2.3.3A0InterruptPin"]]|(((
218		-[[Temperature (Optional )>>||anchor="H2.3.4A0DS18B20Temperaturesensor"]]
219		-)))|[[Sensor Flag>>||anchor="H2.3.5A0SensorFlag"]]
	211	+)))|[[Digital Interrupt (Optional)>>||anchor="H2.3.4A0Distancesignalstrength"]]|(((
	212	+[[Temperature (Optional )>>||anchor="H2.3.5A0InterruptPin"]]
	213	+)))|[[Sensor Flag>>path:#Sensor_Flag]]
220	220
221	221	[[image:1654850511545-399.png]]
222	222
...	...	@@ -243,12 +243,9 @@
243	243	* If the sensor value is 0x0000, it means system doesn’t detect ultrasonic sensor.
244	244	* 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.
245	245
246		-
247		-
248		-
249	249	=== 2.3.3  Interrupt Pin ===
250	250
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.
	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.
252	252
253	253	**Example:**
254	254
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279	279	0x00: No Ultrasonic Sensor
280	280
281	281
	273	+===
	274	+(% style="color:inherit; font-family:inherit" %)2.3.6  Decode payload in The Things Network(%%) ===
282	282
283		-=== 2.3.6  Decode payload in The Things Network ===
284		-
285	285	While using TTN network, you can add the payload format to decode the payload.
286	286
287	287
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872	872
873	873
874	874
875		-= 3.  Configure LDDS75 via AT Command or LoRaWAN Downlink =
	866	+= 3.  Configure LLDS12 via AT Command or LoRaWAN Downlink =
876	876
877	877	(((
878	878	(((
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1015	1015	* Example 1: Downlink Payload: 06000000 ~/~/ Turn off interrupt mode
1016	1016	* Example 2: Downlink Payload: 06000003 ~/~/ Set the interrupt mode to rising edge trigger
1017	1017
1018		-= 4.  FAQ =
1019	1019
1020		-== 4.1  What is the frequency plan for LDDS75? ==
1021	1021
1022		-LDDS75 use the same frequency as other Dragino products. User can see the detail from this link:  [[Introduction>>doc:Main.End Device Frequency Band.WebHome||anchor="H1.Introduction"]]
	1011	+= 4.  FAQ =
1023	1023
	1013	+== 4.1  How to change the LoRa Frequency Bands/Region ==
1024	1024
1025		-
1026		-== 4.2  How to change the LoRa Frequency Bands/Region ==
1027		-
1028	1028	You can follow the instructions for [[how to upgrade image>>||anchor="H2.8A0200BFirmwareChangeLog"]].
1029	1029	When downloading the images, choose the required image file for download. ​
1030	1030
1031	1031
	1019	+= 5.  Trouble Shooting =
1032	1032
1033		-== 4.3  Can I use LDDS75 in condensation environment? ==
	1021	+== 5.1  AT Commands input doesn’t work ==
1034	1034
1035		-LDDS75 is not suitable to be used in condensation environment. Condensation on the LDDS75 probe will affect the reading and always got 0.
1036	1036
	1024	+(((
	1025	+In the case if user can see the console output but can’t type input to the device. Please check if you already include the (% style="color:green" %)**ENTER**(%%) while sending out the command. Some serial tool doesn’t send (% style="color:green" %)**ENTER**(%%) while press the send key, user need to add ENTER in their string.
	1026	+)))
1037	1037
1038	1038
1039		-= 5.  Trouble Shooting =
	1029	+== 5.2  Significant error between the output distant value of LiDAR and actual distance ==
1040	1040
1041		-== 5.1  Why I can’t join TTN V3 in US915 / AU915 bands? ==
1042	1042
1043		-It is due to channel mapping. Please see below link:  [[Frequency band>>doc:Main.LoRaWAN Communication Debug.WebHome||anchor="H2.NoticeofUS9152FCN4702FAU915Frequencyband"]]
	1032	+(((
	1033	+(% style="color:blue" %)**Cause ①**(%%)**：**Due to the physical principles of The LiDAR probe, the above phenomenon is likely to occur if the detection object is the material with high reflectivity (such as mirror, smooth floor tile, etc.) or transparent substance (such as glass and water, etc.)
	1034	+)))
1044	1044
	1036	+(((
	1037	+Troubleshooting: Please avoid use of this product under such circumstance in practice.
	1038	+)))
1045	1045
1046		-== 5.2  AT Command input doesn't work ==
	1040	+(((
	1041	+
	1042	+)))
1047	1047
1048		-In the case if user can see the console output but can’t type input to the device. Please check if you already include the (% style="color:green" %)**ENTER**(%%) while sending out the command. Some serial tool doesn’t send (% style="color:green" %)**ENTER**(%%) while press the send key, user need to add ENTER in their string.
	1044	+(((
	1045	+(% style="color:blue" %)**Cause ②**(%%)**: **The IR-pass filters are blocked.
	1046	+)))
1049	1049
1050	1050	(((
1051		-
	1049	+Troubleshooting: please use dry dust-free cloth to gently remove the foreign matter.
1052	1052	)))
1053	1053
1054	1054
	1053	+
1055	1055	= 6.  Order Info =
1056	1056
1057	1057
1058		-Part Number **:** (% style="color:blue" %)**LDDS75-XX-YY**
	1057	+Part Number: (% style="color:blue" %)**LDDS75-XX-YY**
1059	1059
1060	1060
1061		-(% style="color:blue" %)**XX**(%%)**: **The default frequency band
	1060	+(% style="color:blue" %)**XX**(%%): The default frequency band
1062	1062
1063		-* (% style="color:red" %)**AS923 **(%%)**:** LoRaWAN AS923 band
1064		-* (% style="color:red" %)**AU915 **(%%)**:** LoRaWAN AU915 band
1065		-* (% style="color:red" %)**EU433 **(%%)**:** LoRaWAN EU433 band
1066		-* (% style="color:red" %)**EU868 **(%%)**:** LoRaWAN EU868 band
1067		-* (% style="color:red" %)**KR920 **(%%)**:** LoRaWAN KR920 band
1068		-* (% style="color:red" %)**US915 **(%%)**:** LoRaWAN US915 band
1069		-* (% style="color:red" %)**IN865 **(%%)**:**  LoRaWAN IN865 band
1070		-* (% style="color:red" %)**CN470 **(%%)**:** LoRaWAN CN470 band
	1062	+* (% style="color:red" %)**AS923**(%%):  LoRaWAN AS923 band
	1063	+* (% style="color:red" %)**AU915**(%%): LoRaWAN AU915 band
	1064	+* (% style="color:red" %)**EU433**(%%): LoRaWAN EU433 band
	1065	+* (% style="color:red" %)**EU868**(%%): LoRaWAN EU868 band
	1066	+* (% style="color:red" %)**KR920**(%%): LoRaWAN KR920 band
	1067	+* (% style="color:red" %)**US915**(%%): LoRaWAN US915 band
	1068	+* (% style="color:red" %)**IN865**(%%):  LoRaWAN IN865 band
	1069	+* (% style="color:red" %)**CN470**(%%): LoRaWAN CN470 band
1071	1071
1072	1072	(% style="color:blue" %)**YY**(%%): Battery Option
1073	1073
1074		-* (% style="color:red" %)**4 **(%%)**: **4000mAh battery
1075		-* (% style="color:red" %)**8 **(%%)**:** 8500mAh battery
	1073	+* (% style="color:red" %)**4**(%%): 4000mAh battery
	1074	+* (% style="color:red" %)**8**(%%): 8500mAh battery
1076	1076
	1076	+
1077	1077	= 7. ​ Packing Info =
1078	1078
1079	1079
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1088	1088	* Package Size / pcs : cm
1089	1089	* Weight / pcs : g
1090	1090
	1091	+
1091	1091	= 8.  ​Support =
1092	1092
1093	1093	* 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.