Changes for page LDDS45 - LoRaWAN Distance Detection Sensor User Manual
Last modified by Mengting Qiu on 2025/02/26 15:04
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... ... @@ -994,7 +994,7 @@ 994 994 995 995 (% style="color:#037691" %)**Downlink Command: AT+INTMOD** 996 996 997 -[[image:image-202206101 74917-9.png]]997 +[[image:image-20220610105907-1.png]] 998 998 999 999 1000 1000 (% style="color:#037691" %)**Downlink Command: 0x06** ... ... @@ -1009,43 +1009,82 @@ 1009 1009 1010 1010 1011 1011 1012 -= 4.FAQ=1012 += 6. Use AT Command = 1013 1013 1014 -== 4.1What isthefrequency planfor LDDS75?==1014 +== 6.1 Access AT Commands == 1015 1015 1016 -LD DS75usethesame frequencyasotherDraginoproducts.Usercan seethe detailfromthislink:[[Introduction>>doc:Main.End DeviceFrequencyBand.WebHome||anchor="H1.Introduction"]]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. 1017 1017 1018 +[[image:1654593668970-604.png]] 1018 1018 1020 +**Connection:** 1019 1019 1020 - ==4.2 Howto changethe LoRaFrequencyBands/Region==1022 +(% style="background-color:yellow" %)** USB TTL GND <~-~-~-~-> GND** 1021 1021 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. 1024 +(% style="background-color:yellow" %)** USB TTL TXD <~-~-~-~-> UART_RXD** 1024 1024 1026 +(% style="background-color:yellow" %)** USB TTL RXD <~-~-~-~-> UART_TXD** 1025 1025 1026 1026 1027 -== 4.3 Can I use LDDS75 in condensation environment? == 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 +))) 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. 1034 +((( 1035 +LLDS12 will output system info once power on as below: 1036 +))) 1037 +))) 1030 1030 1031 1031 1040 + [[image:1654593712276-618.png]] 1032 1032 1033 - =5.TroubleShooting =1042 +Valid AT Command please check [[Configure Device>>||anchor="H4.A0ConfigureLLDS12viaATCommandorLoRaWANDownlink"]]. 1034 1034 1035 -== 5.1 Why I can’t join TTN V3 in US915 / AU915 bands? == 1036 1036 1037 - Itis due to channel mapping.Please see below link:[[Frequencyband>>doc:Main.LoRaWANCommunication Debug.WebHome||anchor="H2.NoticeofUS9152FCN4702FAU915Frequencyband"]]1045 += 4. FAQ = 1038 1038 1047 +== 4.1 How to change the LoRa Frequency Bands/Region == 1039 1039 1040 -== 5.2 AT Command input doesn't work == 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. 1041 1041 1052 + 1053 += 5. Trouble Shooting = 1054 + 1055 +== 5.1 AT Commands input doesn’t work == 1056 + 1057 + 1058 +((( 1042 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. 1060 +))) 1043 1043 1062 + 1063 +== 5.2 Significant error between the output distant value of LiDAR and actual distance == 1064 + 1065 + 1044 1044 ((( 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 +((( 1045 1045 1046 1046 ))) 1047 1047 1078 +((( 1079 +(% style="color:blue" %)**Cause ②**(%%)**: **The IR-pass filters are blocked. 1080 +))) 1048 1048 1082 +((( 1083 +Troubleshooting: please use dry dust-free cloth to gently remove the foreign matter. 1084 +))) 1085 + 1086 + 1087 + 1049 1049 = 6. Order Info = 1050 1050 1051 1051 ... ... @@ -1065,9 +1065,10 @@ 1065 1065 1066 1066 (% style="color:blue" %)**YY**(%%): Battery Option 1067 1067 1068 -* (% style="color:red" %)**4 **:**4000mAh battery1069 -* (% style="color:red" %)**8 **:**8500mAh battery1107 +* (% style="color:red" %)**4**(%%): 4000mAh battery 1108 +* (% style="color:red" %)**8**(%%): 8500mAh battery 1070 1070 1110 + 1071 1071 = 7. Packing Info = 1072 1072 1073 1073 ... ... @@ -1082,6 +1082,7 @@ 1082 1082 * Package Size / pcs : cm 1083 1083 * Weight / pcs : g 1084 1084 1125 + 1085 1085 = 8. Support = 1086 1086 1087 1087 * 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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