1) The document describes a security enabled capacitive discharge ignition system using an AVR microcontroller that replaces the conventional ignition key with a password-based login interface. 2) It consists of a 4x4 keypad to enter a 4-digit password, which if correct allows a relay to connect the battery to the ignition system. An LCD displays the login status and 3 incorrect attempts sound a buzzer. 3) The system charges a voltage capacitor and discharges it through an ignition coil to generate sparks at the spark plug for ignition, in the same way as a conventional ignition system. The embedded system provides more secure access to starting the vehicle ignition.