The Firework Ignition System

The fireworks ignition system has control over 30 unique channels. Each channel consists of a transistor circuit that switches the power source on and off. The system is powered by a 12 Volt 1.3 Ah sealed lead-acid battery. When not in use there is a DC input jack mounted that allows for recharging through a wall wart. An arming key was incorporated as a safety mechanism (When unarmed no power is applied to the transistors). Control of the system is accomplished by a serial port set at 38.4 kbps. Through this port, the user can set the state of any of the channels, check the status of the arming key, and get the voltage of the battery. The entire project is housed in an aluminium suitcase.

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