**NEWBIE** Need help or guidance on simple project
I'm trying to put together a little project for my car and am looking for a little help or guidance. I know my cars circuitry well, as well as intermediate computer circuitry but unfortunately I missed the generation of the circuitry I'm trying to set up. I have basic knowledge of circuitry components and such. I attached a crude drawing of what I am trying to accomplish. I know this is newbish but please don't flame and I have been studying ways to accomplish this sparingly and a microcontroller seems like the best way unless you guys have alternate ideas.