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...	...	@@ -994,7 +994,7 @@
994	994
995	995	(% style="color:#037691" %)**Downlink Command: AT+INTMOD**
996	996
997		-[[image:image-20220610105907-1.png]]
	997	+[[image:image-20220610174917-9.png]]
998	998
999	999
1000	1000	(% style="color:#037691" %)**Downlink Command: 0x06**
...	...	@@ -1009,105 +1009,65 @@
1009	1009
1010	1010
1011	1011
1012		-= 6.  Use AT Command =
	1012	+= 4.  FAQ =
1013	1013
1014		-== 6.1  Access AT Commands ==
	1014	+== 4.1  What is the frequency plan for LDDS75? ==
1015	1015
1016		-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.
	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	1017
1018		-[[image:1654593668970-604.png]]
1019	1019
1020		-**Connection:**
1021	1021
1022		-(% style="background-color:yellow" %)** USB TTL GND <~-~-~-~-> GND**
	1020	+== 4.2  How to change the LoRa Frequency Bands/Region ==
1023	1023
1024		-(% style="background-color:yellow" %)** USB TTL TXD  <~-~-~-~-> UART_RXD**
	1022	+You can follow the instructions for [[how to upgrade image>>||anchor="H2.8A0200BFirmwareChangeLog"]].
	1023	+When downloading the images, choose the required image file for download. ​
1025	1025
1026		-(% style="background-color:yellow" %)** USB TTL RXD  <~-~-~-~-> UART_TXD**
1027	1027
1028	1028
1029		-(((
1030		-(((
1031		-In the PC, you need to set the serial baud rate to (% style="color:green" %)**9600**(%%) to access the serial console for LLDS12.
1032		-)))
	1027	+== 4.3  Can I use LDDS75 in condensation environment? ==
1033	1033
1034		-(((
1035		-LLDS12 will output system info once power on as below:
1036		-)))
1037		-)))
	1029	+LDDS75 is not suitable to be used in condensation environment. Condensation on the LDDS75 probe will affect the reading and always got 0.
1038	1038
1039	1039
1040		- [[image:1654593712276-618.png]]
1041	1041
1042		-Valid AT Command please check [[Configure Device>>||anchor="H4.A0ConfigureLLDS12viaATCommandorLoRaWANDownlink"]].
	1033	+= 5.  Trouble Shooting =
1043	1043
	1035	+== 5.1  Why I can’t join TTN V3 in US915 / AU915 bands? ==
1044	1044
1045		-= 4.  FAQ =
	1037	+It is due to channel mapping. Please see below link:  [[Frequency band>>doc:Main.LoRaWAN Communication Debug.WebHome||anchor="H2.NoticeofUS9152FCN4702FAU915Frequencyband"]]
1046	1046
1047		-== 4.1  How to change the LoRa Frequency Bands/Region ==
1048	1048
1049		-You can follow the instructions for [[how to upgrade image>>||anchor="H2.8A0200BFirmwareChangeLog"]].
1050		-When downloading the images, choose the required image file for download. ​
	1040	+== 5.2  AT Command input doesn't work ==
1051	1051
1052		-
1053		-= 5.  Trouble Shooting =
1054		-
1055		-== 5.1  AT Commands input doesn’t work ==
1056		-
1057		-
1058		-(((
1059	1059	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.
1060		-)))
1061	1061
1062		-
1063		-== 5.2  Significant error between the output distant value of LiDAR and actual distance ==
1064		-
1065		-
1066	1066	(((
1067		-(% 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.)
1068		-)))
1069		-
1070		-(((
1071		-Troubleshooting: Please avoid use of this product under such circumstance in practice.
1072		-)))
1073		-
1074		-(((
1075	1075
1076	1076	)))
1077	1077
1078		-(((
1079		-(% style="color:blue" %)**Cause ②**(%%)**: **The IR-pass filters are blocked.
1080		-)))
1081	1081
1082		-(((
1083		-Troubleshooting: please use dry dust-free cloth to gently remove the foreign matter.
1084		-)))
1085		-
1086		-
1087		-
1088	1088	= 6.  Order Info =
1089	1089
1090	1090
1091		-Part Number: (% style="color:blue" %)**LDDS75-XX-YY**
	1052	+Part Number **:** (% style="color:blue" %)**LDDS75-XX-YY**
1092	1092
1093	1093
1094		-(% style="color:blue" %)**XX**(%%): The default frequency band
	1055	+(% style="color:blue" %)**XX**(%%)**: **The default frequency band
1095	1095
1096		-* (% style="color:red" %)**AS923**(%%):  LoRaWAN AS923 band
1097		-* (% style="color:red" %)**AU915**(%%): LoRaWAN AU915 band
1098		-* (% style="color:red" %)**EU433**(%%): LoRaWAN EU433 band
1099		-* (% style="color:red" %)**EU868**(%%): LoRaWAN EU868 band
1100		-* (% style="color:red" %)**KR920**(%%): LoRaWAN KR920 band
1101		-* (% style="color:red" %)**US915**(%%): LoRaWAN US915 band
1102		-* (% style="color:red" %)**IN865**(%%):  LoRaWAN IN865 band
1103		-* (% style="color:red" %)**CN470**(%%): LoRaWAN CN470 band
	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
1104	1104
1105	1105	(% style="color:blue" %)**YY**(%%): Battery Option
1106	1106
1107		-* (% style="color:red" %)**4**(%%): 4000mAh battery
1108		-* (% style="color:red" %)**8**(%%): 8500mAh battery
	1068	+* (% style="color:red" %)**4 **(%%)**: **4000mAh battery
	1069	+* (% style="color:red" %)**8 **(%%)**:** 8500mAh battery
1109	1109
1110		-
1111	1111	= 7. ​ Packing Info =
1112	1112
1113	1113
...	...	@@ -1122,7 +1122,6 @@
1122	1122	* Package Size / pcs : cm
1123	1123	* Weight / pcs : g
1124	1124
1125		-
1126	1126	= 8.  ​Support =
1127	1127
1128	1128	* 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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