I hope you find the model rocket ignition system schematics useful, even if you don’t build my exact board. Of course, you can edit my board in Copper Connection if you want to make adjustments. Although I encourage you to include a programmed microcontroller for safety features, you can still get the power benefits of locating the battery near the launchpad from even a brainless home-etched version of this project.
Here is a brief example of the rocket ignition system being shown off:
The new device is better than my original fancy rocket launch controller. However, now that I have built and used it, here are some changes I will keep in the mind for the next revision.
I would love hearing from you if you implement your own version of this relay-based model rocket ignition system. Or, even if you just have comments, questions, and ideas for improvements.