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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	+
	63	+
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
	85	+
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.**
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83	83
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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
	279	+=== 2.3.6  Decode payload in The Things Network ===
	280	+
276	276	While using TTN network, you can add the payload format to decode the payload.
277	277
278	278
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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	1011	= 4.  FAQ =
1012	1012
1013	1013	== 4.1  What is the frequency plan for LDDS75? ==
1014	1014
1015		-LDDS75 use the same frequency as other Dragino products. User can see the detail from this link:
	1018	+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"]]
1016	1016
1017	1017
1018	1018
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1031	1031
1032	1032	= 5.  Trouble Shooting =
1033	1033
1034		-== 5.1  AT Commands input doesn’t work ==
	1037	+== 5.1  Why I can’t join TTN V3 in US915 / AU915 bands? ==
1035	1035
	1039	+It is due to channel mapping. Please see below link:  [[Frequency band>>doc:Main.LoRaWAN Communication Debug.WebHome||anchor="H2.NoticeofUS9152FCN4702FAU915Frequencyband"]]
1036	1036
1037		-(((
1038		-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.
1039		-)))
1040	1040
	1042	+== 5.2  AT Command input doesn't work ==
1041	1041
1042		-== 5.2  Significant error between the output distant value of LiDAR and actual distance ==
	1044	+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.
1043	1043
1044		-
1045	1045	(((
1046		-(% 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.)
1047		-)))
1048		-
1049		-(((
1050		-Troubleshooting: Please avoid use of this product under such circumstance in practice.
1051		-)))
1052		-
1053		-(((
1054	1054
1055	1055	)))
1056	1056
1057		-(((
1058		-(% style="color:blue" %)**Cause ②**(%%)**: **The IR-pass filters are blocked.
1059		-)))
1060	1060
1061		-(((
1062		-Troubleshooting: please use dry dust-free cloth to gently remove the foreign matter.
1063		-)))
1064		-
1065		-
1066		-
1067	1067	= 6.  Order Info =
1068	1068
1069	1069
1070		-Part Number: (% style="color:blue" %)**LDDS75-XX-YY**
	1054	+Part Number **:** (% style="color:blue" %)**LDDS75-XX-YY**
1071	1071
1072	1072
1073		-(% style="color:blue" %)**XX**(%%): The default frequency band
	1057	+(% style="color:blue" %)**XX**(%%)**: **The default frequency band
1074	1074
1075		-* (% style="color:red" %)**AS923**(%%):  LoRaWAN AS923 band
1076		-* (% style="color:red" %)**AU915**(%%): LoRaWAN AU915 band
1077		-* (% style="color:red" %)**EU433**(%%): LoRaWAN EU433 band
1078		-* (% style="color:red" %)**EU868**(%%): LoRaWAN EU868 band
1079		-* (% style="color:red" %)**KR920**(%%): LoRaWAN KR920 band
1080		-* (% style="color:red" %)**US915**(%%): LoRaWAN US915 band
1081		-* (% style="color:red" %)**IN865**(%%):  LoRaWAN IN865 band
1082		-* (% style="color:red" %)**CN470**(%%): LoRaWAN CN470 band
	1059	+* (% style="color:red" %)**AS923 **(%%)**:** LoRaWAN AS923 band
	1060	+* (% style="color:red" %)**AU915 **(%%)**:** LoRaWAN AU915 band
	1061	+* (% style="color:red" %)**EU433 **(%%)**:** LoRaWAN EU433 band
	1062	+* (% style="color:red" %)**EU868 **(%%)**:** LoRaWAN EU868 band
	1063	+* (% style="color:red" %)**KR920 **(%%)**:** LoRaWAN KR920 band
	1064	+* (% style="color:red" %)**US915 **(%%)**:** LoRaWAN US915 band
	1065	+* (% style="color:red" %)**IN865 **(%%)**:**  LoRaWAN IN865 band
	1066	+* (% style="color:red" %)**CN470 **(%%)**:** LoRaWAN CN470 band
1083	1083
1084	1084	(% style="color:blue" %)**YY**(%%): Battery Option
1085	1085
1086		-* (% style="color:red" %)**4**(%%): 4000mAh battery
1087		-* (% style="color:red" %)**8**(%%): 8500mAh battery
	1070	+* (% style="color:red" %)**4 **(%%)**: **4000mAh battery
	1071	+* (% style="color:red" %)**8 **(%%)**:** 8500mAh battery
1088	1088
1089		-
1090	1090	= 7. ​ Packing Info =
1091	1091
1092	1092
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1101	1101	* Package Size / pcs : cm
1102	1102	* Weight / pcs : g
1103	1103
1104		-
1105	1105	= 8.  ​Support =
1106	1106
1107	1107	* 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.