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Finger print of a person is 'Read' by a special type of sensor. Finger print sensor can be interfaced with a microcontroller. Through keypad the authors can add new user and delete the existing user, also identify the user by selecting corresponding option through keypad. In this paper, the authors use a fingerprint module to read once identity to start the equipment. For this they use a microcontroller to enable the ignition system if the matching between scanned data and the already existing data is correct. Comparison is done inside the fingerprint module itself and its output is given to microcontroller. Result is displayed in a LCD display whether the user is authorised or not.
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