This is a simple rocketry launch controller designed to accommodate an XT30 connector as the safety switch, an Illuminated Toggle Switch with Cover (guard) from Adafruit, and an Illuminated Triangle Pushbutton also from Adafruit.

This launch controller operates from any 12V power source. The LEDs from the recommended switches are limited to 12V. User will be responsible for safely wiring the device to operate correctly. I recommend having the guarded switch illuminate when armed to show the device is powered, and the triangular switch illuminate to show continuity of the ignitor correctly installed through the power outputs. I also recommend using an LED as the "test ignitor" during testing to verify correct operation.