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how to change the password?

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summersnow

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i'm doing a remote control system using telephone network.i need to key in the password to access the system everytime when i call to the phone.if i wannaadd one more features into the system,which the user can change the password when he is accessing the system,may i know how can i do that?i'm using a PIC16F877A

Thanks for ur help!
 

budhy

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Save the user password on onchip EEPROM
 

    summersnow

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