ESPboy_FMradio

The ESPboy FMradio extension module uses Si4703 chip and turning your ESPboy into portable FM radio.

1. Buy Si4703 module

2. Connect Si4703 to ESPboy

3.3v >> VCC
GND >> GND
SDIO >> D2, GPIO4, SDA
SCLK >> D1, GPIO5, SCL
SEN >> FREE
RST >> D8, GPIO15, CS, SS
GPIO1 >> FREE
GPIO2 >> FREE

3. Upload this firmware

NOTE: Before compilation, set Arduino IDE settings

Board: ESP8266 WeMos D1 mini
CPU frequency: 160Mhz

4. Useful links