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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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272	272	0x00: No Ultrasonic Sensor
273	273
274	274
	273	+===
	274	+(% style="color:inherit; font-family:inherit" %)2.3.6  Decode payload in The Things Network(%%) ===
275	275
276		-== 2.3.6  Decode payload in The Things Network ==
277		-
278	278	While using TTN network, you can add the payload format to decode the payload.
279	279
280	280
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996	996
997	997	(% style="color:#037691" %)**Downlink Command: AT+INTMOD**
998	998
999		-[[image:image-20220610174917-9.png]]
	997	+[[image:image-20220610174836-8.png]]
1000	1000
1001	1001
1002	1002	(% style="color:#037691" %)**Downlink Command: 0x06**
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1009	1009	* Example 2: Downlink Payload: 06000003 ~/~/ Set the interrupt mode to rising edge trigger
1010	1010
1011	1011
	1010	+
1012	1012	= 4.  FAQ =
1013	1013
1014		-== 4.1  What is the frequency plan for LDDS75? ==
	1013	+== 4.1  How to change the LoRa Frequency Bands/Region ==
1015	1015
1016		-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"]]
1017		-
1018		-
1019		-
1020		-== 4.2  How to change the LoRa Frequency Bands/Region ==
1021		-
1022	1022	You can follow the instructions for [[how to upgrade image>>||anchor="H2.8A0200BFirmwareChangeLog"]].
1023	1023	When downloading the images, choose the required image file for download. ​
1024	1024
1025	1025
	1019	+= 5.  Trouble Shooting =
1026	1026
1027		-== 4.3  Can I use LDDS75 in condensation environment? ==
	1021	+== 5.1  AT Commands input doesn’t work ==
1028	1028
1029		-LDDS75 is not suitable to be used in condensation environment. Condensation on the LDDS75 probe will affect the reading and always got 0.
1030	1030
	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	+)))
1031	1031
1032	1032
1033		-= 5.  Trouble Shooting =
	1029	+== 5.2  Significant error between the output distant value of LiDAR and actual distance ==
1034	1034
1035		-== 5.1  Why I can’t join TTN V3 in US915 / AU915 bands? ==
1036	1036
1037		-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	+)))
1038	1038
	1036	+(((
	1037	+Troubleshooting: Please avoid use of this product under such circumstance in practice.
	1038	+)))
1039	1039
1040		-== 5.2  AT Command input doesn't work ==
	1040	+(((
	1041	+
	1042	+)))
1041	1041
1042		-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	+)))
1043	1043
1044	1044	(((
1045		-
	1049	+Troubleshooting: please use dry dust-free cloth to gently remove the foreign matter.
1046	1046	)))
1047	1047
1048	1048
	1053	+
1049	1049	= 6.  Order Info =
1050	1050
1051	1051
1052		-Part Number **:** (% style="color:blue" %)**LDDS75-XX-YY**
	1057	+Part Number: (% style="color:blue" %)**LDDS75-XX-YY**
1053	1053
1054	1054
1055		-(% style="color:blue" %)**XX**(%%)**: **The default frequency band
	1060	+(% 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
	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
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
	1073	+* (% style="color:red" %)**4**(%%): 4000mAh battery
	1074	+* (% style="color:red" %)**8**(%%): 8500mAh battery
1070	1070
1071	1071
1072	1072	= 7. ​ Packing Info =

image-20220610174917-9.png

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1		-XWiki.Xiaoling

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