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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		-
64		-
65	65	== 1.3  Specification ==
66	66
67	67	=== 1.3.1  Rated environmental conditions ===
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275	275	0x00: No Ultrasonic Sensor
276	276
277	277
	273	+===
	274	+(% style="color:inherit; font-family:inherit" %)2.3.6  Decode payload in The Things Network(%%) ===
278	278
279		-=== 2.3.6  Decode payload in The Things Network ===
280		-
281	281	While using TTN network, you can add the payload format to decode the payload.
282	282
283	283
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1012	1012	* Example 2: Downlink Payload: 06000003 ~/~/ Set the interrupt mode to rising edge trigger
1013	1013
1014	1014
	1010	+
1015	1015	= 4.  FAQ =
1016	1016
1017	1017	== 4.1  What is the frequency plan for LDDS75? ==
1018	1018
1019		-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"]]
	1015	+LDDS75 use the same frequency as other Dragino products. User can see the detail from this link:
1020	1020
1021	1021
1022	1022
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1035	1035
1036	1036	= 5.  Trouble Shooting =
1037	1037
1038		-== 5.1  Why I can’t join TTN V3 in US915 / AU915 bands? ==
	1034	+== 5.1  AT Commands input doesn’t work ==
1039	1039
1040		-It is due to channel mapping. Please see below link:  [[Frequency band>>doc:Main.LoRaWAN Communication Debug.WebHome||anchor="H2.NoticeofUS9152FCN4702FAU915Frequencyband"]]
1041	1041
	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	+)))
1042	1042
1043		-== 5.2  AT Command input doesn't work ==
1044	1044
1045		-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.
	1042	+== 5.2  Significant error between the output distant value of LiDAR and actual distance ==
1046	1046
	1044	+
1047	1047	(((
	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	+(((
1048	1048
1049	1049	)))
1050	1050
	1057	+(((
	1058	+(% style="color:blue" %)**Cause ②**(%%)**: **The IR-pass filters are blocked.
	1059	+)))
1051	1051
	1061	+(((
	1062	+Troubleshooting: please use dry dust-free cloth to gently remove the foreign matter.
	1063	+)))
	1064	+
	1065	+
	1066	+
1052	1052	= 6.  Order Info =
1053	1053
1054	1054
1055		-Part Number **:** (% style="color:blue" %)**LDDS75-XX-YY**
	1070	+Part Number: (% style="color:blue" %)**LDDS75-XX-YY**
1056	1056
1057	1057
1058		-(% style="color:blue" %)**XX**(%%)**: **The default frequency band
	1073	+(% style="color:blue" %)**XX**(%%): The default frequency band
1059	1059
1060		-* (% style="color:red" %)**AS923 **(%%)**:** LoRaWAN AS923 band
1061		-* (% style="color:red" %)**AU915 **(%%)**:** LoRaWAN AU915 band
1062		-* (% style="color:red" %)**EU433 **(%%)**:** LoRaWAN EU433 band
1063		-* (% style="color:red" %)**EU868 **(%%)**:** LoRaWAN EU868 band
1064		-* (% style="color:red" %)**KR920 **(%%)**:** LoRaWAN KR920 band
1065		-* (% style="color:red" %)**US915 **(%%)**:** LoRaWAN US915 band
1066		-* (% style="color:red" %)**IN865 **(%%)**:**  LoRaWAN IN865 band
1067		-* (% style="color:red" %)**CN470 **(%%)**:** LoRaWAN CN470 band
	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
1068	1068
1069	1069	(% style="color:blue" %)**YY**(%%): Battery Option
1070	1070
1071		-* (% style="color:red" %)**4 **(%%)**: **4000mAh battery
1072		-* (% style="color:red" %)**8 **(%%)**:** 8500mAh battery
	1086	+* (% style="color:red" %)**4**(%%): 4000mAh battery
	1087	+* (% style="color:red" %)**8**(%%): 8500mAh battery
1073	1073
1074	1074
1075	1075	= 7. ​ Packing Info =