Raspomh wrote:I can buy an fm transmitter from Walmart but i thought this be a fun project any help would be appreciated
There seems to be a whole selection of FM transmitters available for use in cars
at Walmart. While the process to get such hardware licensed is bureaucratic enough that only large companies can do business, these transmitters look ideal for connecting to a Raspberry Pi--simply use the audio out.
The main part of the project would be getting a Pi to run reliably in a car and setting up a media player with a reasonable user interface, similar to other media-center-in-a-car projects. In my opinion, a tablet is likely to work better than a Pi for such things. However, for the sake of learning about computers, Linux and technology, using a Pi is much better.
I can't advise on which media player to use. That will, in part, depend on the user interface you choose. The user interface could be as simple as a single button wired to the GPIO (through a suitable resistor) used start and stop the music or as complicated as a touch screen. One idea would be to go with 2 or 3 buttons for the look and feel of an 8-track tape player
, though without the mechanical bits--extra points for using recycled parts from an actual 8-track player.
For reliability you need to configure the Pi's software so it can survive sudden power loss. This is usually done by making the operating system image read only
. It will be nice to hear updates on your progress. Good luck!