Modern smart keys allow you to keep the key fob in your pocket or purse while you simply grab the handle and tug the door open. [Phil] decided he would rather ditch the fob altogether and instead ...

Flashy, modern head units can spoil the look of a car’s interior ... In final form, a Bluetooth module and Arduino Pro Micro are stuffed inside the stereo along with a DPDT relay to switch ...

but it may not be as safe as a new car. Things like anti-lock brakes are standard in most cars today, and are not only safer, but could lower your insurance premiums. The flowchart gives the basic ...