Play, Stop and change transmission with buttons.

[dgaray01]

Hello, i am new with Raspberry Pi and i saw this amazing project and i love it, i would like to use it in a personal project for farmers that need to play music on the radio, i would like to add a physical button to play and stop the transmissions or a way to change the transmission frequency by using a small display or HDMI out, i would like to get some ideas about how to do this. Thankss

[markondej]

Adding button support is possible and quite simple to add as this software uses RPi built in ARM peripherals, which also do include GPIO support. Please see transmitter.cpp file and https://datasheets.raspberrypi.com/bcm2835/bcm2835-peripherals.pdf. Pretty much any button connected to GPIO header may be supported, but there is no such support in code currently. Also HDMI/display/GUI support is ofcourse possible to add but this requires some coding skills. Maybe I will add touch display gui with some free time available.