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Last modified by Bei Jinggeng on 2024/05/31 09:53
From version 109.1
edited by Mengting Qiu
on 2024/04/02 16:59
Change comment: There is no comment for this version
To version 110.1
edited by Bei Jinggeng
on 2024/05/31 09:14
Change comment: There is no comment for this version

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854 854  This means sensor is trying to join the NB-IoT network but fail. Please see this link for **//[[trouble shooting for signal strenght:99>>doc:Main.CSQ\:99,99.WebHome]]//**.
855 855  
856 856  
857 +== 6.4 Why does the DDS75 sensor keep flashing blue? ==
858 +
859 +The first two digits are the week of the year, and the last two digits are the year.
860 +
861 +The number 3322 is the first batch we changed the power IC.
862 +
863 +As shown below:
864 +
865 + [[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LDDS75%20-%20LoRaWAN%20Distance%20Detection%20Sensor%20User%20Manual/WebHome/image-20240531090837-1.png?rev=1.1||alt="image-20240531090837-1.png"]]
866 +
867 +Have you updated the Lora ST's firmware? Please send downline 26 01 to check the version number.
868 +
869 +If it is v1.4.1 version, please modify a value according to the above four digits, the AT command is AT+POWERIC. The date after 3322 is AT+POWERIC=1, and the date before it is AT+POWERIC=0.
870 +
871 +Downlink is FF 01(AT+POWERIC=1);FF 00(AT+POWERIC=0).
872 +
873 +
857 857  = 7. ​ Order Info =
858 858  
859 859