Yeah lets just take the human out of the loop in regards to the DIY missile. Sure.
The altimeters are available OTC but i wanted to use my pi-zero and an IMU with a barometer. What I was designing was an i2c pyro board that could ignite up to 4 e-matches that sets off the blackpowder charges.
I've met the guy that made this altimeter, it's pretty amazing. The hobby is filled with engineers so some of the stuff they come up with is impressive. https://www.featherweightaltimeters.com/blue-raven-altimeter...