Hey hey, 

I dont know if I'm in the right forum but please re-direct me if not. I have a project in mind where i activate a servo with the brake pedal of my car using the cars brake light as a signal to an arduino uno. the servo will be connected to a spoiler that will turn downwards to increase drag when i brake. it will not be a full size build, maybe 20cm in length max. All the electronics of this