From time to time, we see electronics projects for model rocket instrumentation. Those who have been involved in the hobby for many years may remember when 8-bit microcontrollers like the PIC16F84 ...

The project mounts an M0 Feather microcontroller ... Just be sure whatever tech you’re using is compliant with the rules for model rocketry in your local area.

Since there was a good chance that some of the rockets would not find their way back home, each participant made a second model that was judged on construction quality later the same day.