Design and manufacture of fingerprint password lock based on 51 MCU
The design uses the single-chip computer STC89C52 as the control core of the fingerprint password lock,and realizes the key input through the 4×4 matrix keyboard to realize the ordinary password unlocking and fingerprint unlocking functions.In the initial password lock startup interface,the matrix keyboard continuously inputs the digital password to realize the ordinary password unlocking function.If the AS608 fingerprint module is pressed,the fingerprint unlocking function is realized.LCD12864 LCD displays the current status of the password lock in real time.The matrix keyboard input realizes the humanized key function:the password input encrypts and displays the number of input digits in real time.If the input error occurs,the backspace or return to the initial interface function can be realized.The password lock can be used to enter fingerprints,delete fingerprints and modify the unlock password in the administrator interface.In the design,AT24C02 memory chip is used to realize the stable storage function of unlock password,and AS608 integrated fingerprint processing module is used to realize the storage function of fingerprint template.
万方数据
维普
