altimiter

I just posted a video explaining how I added an airspeed indicator to my rocket build, and explained some of the science behind it. The sensor itself is not built to record airspeed, so I had to do some physics to get it to become an airspeed sensor Video Link:

I want to go to the next step and add electronics to my rocket. I don't know where to begin is there any good step by step tutorials that could walk me through the process. Thanks in advance