So im working on this project car and i want to have the coolest key fob ever. Theres videos of people making concept key fobs with touch screens and software running like a smartphone. i want to create something like that, just a simple input screen and simple OS to control locking and unlocking the car. So the functionality of a wireless key is not only easy but many many aftermarket products exist that do this. What i need help with is figuring out what the right hardware would be for this project specifically the processor. So small batteries and screens and radio emitters are easy, but making a motherboard and processor the size of a key fob is difficult. The raspberry Pi zero w is too large for this, but im wondering if theres a way to break the board to get rid of parts i wont be using and still have it run code i write, output visuals to the screen and control another board responsible for communicating with the car. If not is there another smaller processor/board that could do this. It has to draw very low power and be capable of running custom software. Thanks!
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