Have you ever wanted to remotely launch a model rocket, or some fireworks safely? I know I sure have. So I came up with this method using an RC airplane transmitter, receiver, and an Electronic Speed Controller (ESC). By using the built-in ESC safety feature, that requires the throttle to be raised, lowered and then raised again before powering a motor, I could do just that. For rocket ignition, you simply connect the ESC to the rocket igniter. If you don’t have any of those lying around, some low wattage resistors work well. Essentially by overloading the resistor you cause it to get hot enough to ignite a fuse.
To keep all the electronics safe, I placed them in a hobby box, then added a super loud tweeter as an additional safety feature. That way everyone is aware when the system is armed and active.
Happy 4th of July!