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Version 5.1 by Mengting Qiu on 2024/05/20 09:39
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6 = 1. Burn the Configure certificate. =
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8 **hex** firmware.
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10 After burning, the serial port displays as follows：
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12 [[image:image-20240520093014-1.png]]
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16 = 2. Configure CA certificate. =
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18 Please input the certificate in PEM format for the user. (The format of the image is entered casually, not in PEM format.)
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20 Use the AT command **AT+CACERT** as follows:
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22 The following certificates are for free input. Please enter the complete certificate when using them.
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24 [[image:image-20240520093355-2.png]]
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26 If the configuration succeeds, the message "CA certificate configuration succeeded" is displayed. Otherwise, the configuration fails.
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