USB AM/FM Radio Tuner

Build a US$10 high quality DSP AM/FM radio tuner programmable by Microsoft Windows using the USB interface with this simple instruction. You only need to buy two components from Taobao and make a few soldering points. Once you get an audio recording software that can be run by the Windows schedule task, it can be used for radio recording to different radio stations automatically by running a console EXE file. It uses the FTDI's FT2232H that converts USB to I2C interface, and the I2C drives the SiliconLabs's Si4730 DSP AM/FM tuner. The tuner power is directly supplied by the USB. Details are in the USBRADIO.CPP source file. It gives the hardware connection and the references to get the hardware modules and software components.