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...	...	@@ -994,7 +994,7 @@
994	994
995	995	(% style="color:#037691" %)**Downlink Command: AT+INTMOD**
996	996
997		-[[image:image-20220610174917-9.png]]
	997	+[[image:image-20220610105907-1.png]]
998	998
999	999
1000	1000	(% style="color:#037691" %)**Downlink Command: 0x06**
...	...	@@ -1008,47 +1008,84 @@
1008	1008
1009	1009
1010	1010
1011		-= 4.  FAQ =
1012	1012
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:
	1013	+= 6.  Use AT Command =
1016	1016
	1015	+== 6.1  Access AT Commands ==
1017	1017
	1017	+LLDS12 supports AT Command set in the stock firmware. You can use a USB to TTL adapter to connect to LLDS12 for using AT command, as below.
1018	1018
1019		-== 4.2  How to change the LoRa Frequency Bands/Region ==
	1019	+[[image:1654593668970-604.png]]
1020	1020
1021		-You can follow the instructions for [[how to upgrade image>>||anchor="H2.8A0200BFirmwareChangeLog"]].
1022		-When downloading the images, choose the required image file for download. ​
	1021	+**Connection:**
1023	1023
	1023	+(% style="background-color:yellow" %)** USB TTL GND <~-~-~-~-> GND**
1024	1024
	1025	+(% style="background-color:yellow" %)** USB TTL TXD  <~-~-~-~-> UART_RXD**
1025	1025
1026		-== 4.3  Can I use LDDS75 in condensation environment? ==
	1027	+(% style="background-color:yellow" %)** USB TTL RXD  <~-~-~-~-> UART_TXD**
1027	1027
1028		-LDDS75 is not suitable to be used in condensation environment. Condensation on the LDDS75 probe will affect the reading and always got 0.
1029	1029
	1030	+(((
	1031	+(((
	1032	+In the PC, you need to set the serial baud rate to (% style="color:green" %)**9600**(%%) to access the serial console for LLDS12.
	1033	+)))
1030	1030
	1035	+(((
	1036	+LLDS12 will output system info once power on as below:
	1037	+)))
	1038	+)))
1031	1031
1032		-= 5.  Trouble Shooting =
1033	1033
1034		-== 5.1  Why I can’t join TTN V3 in US915 / AU915 bands? ==
	1041	+ [[image:1654593712276-618.png]]
1035	1035
	1043	+Valid AT Command please check [[Configure Device>>||anchor="H4.A0ConfigureLLDS12viaATCommandorLoRaWANDownlink"]].
1036	1036
	1045	+
	1046	+= 7.  FAQ =
	1047	+
	1048	+== 7.1  How to change the LoRa Frequency Bands/Region ==
	1049	+
	1050	+You can follow the instructions for [[how to upgrade image>>||anchor="H2.8A0200BFirmwareChangeLog"]].
	1051	+When downloading the images, choose the required image file for download. ​
	1052	+
	1053	+
	1054	+= 8.  Trouble Shooting =
	1055	+
	1056	+== 8.1  AT Commands input doesn’t work ==
	1057	+
	1058	+
1037	1037	(((
1038		-
	1060	+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	1039	)))
1040	1040
1041	1041
1042		-== 5.2  AT Command input doesn't work ==
	1064	+== 8.2  Significant error between the output distant value of LiDAR and actual distance ==
1043	1043
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.
1045	1045
1046	1046	(((
	1068	+(% 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.)
	1069	+)))
	1070	+
	1071	+(((
	1072	+Troubleshooting: Please avoid use of this product under such circumstance in practice.
	1073	+)))
	1074	+
	1075	+(((
1047	1047
1048	1048	)))
1049	1049
	1079	+(((
	1080	+(% style="color:blue" %)**Cause ②**(%%)**: **The IR-pass filters are blocked.
	1081	+)))
1050	1050
	1083	+(((
	1084	+Troubleshooting: please use dry dust-free cloth to gently remove the foreign matter.
	1085	+)))
1051	1051
	1087	+
	1088	+
1052	1052	= 6.  Order Info =
1053	1053
1054	1054
...	...	@@ -1068,10 +1068,11 @@
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
	1108	+* **(% style="color:red" %)4**(%%): 4000mAh battery
	1109	+* **(% style="color:red" %)8**(%%): 8500mAh battery
1073	1073
1074	1074
	1112	+
1075	1075	= 7. ​ Packing Info =
1076	1076
1077	1077
...	...	@@ -1087,6 +1087,7 @@
1087	1087	* Weight / pcs : g
1088	1088
1089	1089
	1128	+
1090	1090	= 8.  ​Support =
1091	1091
1092	1092	* 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.

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