For this build, [hesam.moshiri] uses a TEA5767 FM chip because of its ability to communicate over I2C. He also integrated ... is controlled by an Arduino including a small LCD screen which ...
[Rafael] just made a little library that allows you to interface these modules to the Atmega328p-based Arduino UNO in order ... Our guess it that an SPI / I2C IO extender could lift this limitation.