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994	994
995	995	(% style="color:#037691" %)**Downlink Command: AT+INTMOD**
996	996
997		-[[image:image-20220610174836-8.png]]
	997	+[[image:image-20220610174917-9.png]]
998	998
999	999
1000	1000	(% style="color:#037691" %)**Downlink Command: 0x06**
...	...	@@ -1010,47 +1010,40 @@
1010	1010
1011	1011	= 4.  FAQ =
1012	1012
1013		-== 4.1  How to change the LoRa Frequency Bands/Region ==
	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:
	1016	+
	1017	+
	1018	+
	1019	+== 4.2  How to change the LoRa Frequency Bands/Region ==
	1020	+
1015	1015	You can follow the instructions for [[how to upgrade image>>||anchor="H2.8A0200BFirmwareChangeLog"]].
1016	1016	When downloading the images, choose the required image file for download. ​
1017	1017
1018	1018
1019		-= 5.  Trouble Shooting =
1020	1020
1021		-== 5.1  AT Commands input doesn’t work ==
	1026	+== 4.3  Can I use LDDS75 in condensation environment? ==
1022	1022
	1028	+LDDS75 is not suitable to be used in condensation environment. Condensation on the LDDS75 probe will affect the reading and always got 0.
1023	1023
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		-)))
1027	1027
1028	1028
1029		-== 5.2  Significant error between the output distant value of LiDAR and actual distance ==
	1032	+= 5.  Trouble Shooting =
1030	1030
	1034	+== 5.1  Why I can’t join TTN V3 in US915 / AU915 bands? ==
1031	1031
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		-)))
1035	1035
1036		-(((
1037		-Troubleshooting: Please avoid use of this product under such circumstance in practice.
1038		-)))
1039	1039
1040		-(((
1041		-
1042		-)))
	1038	+== 5.2  AT Command input doesn't work ==
1043	1043
1044		-(((
1045		-(% style="color:blue" %)**Cause ②**(%%)**: **The IR-pass filters are blocked.
1046		-)))
	1040	+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.
1047	1047
1048	1048	(((
1049		-Troubleshooting: please use dry dust-free cloth to gently remove the foreign matter.
	1043	+
1050	1050	)))
1051	1051
1052	1052
1053		-
1054	1054	= 6.  Order Info =
1055	1055
1056	1056

image-20220610174917-9.png

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	1	+XWiki.Xiaoling

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