This is the IC with ByPic firmware installed. This will work with a serial device connected to the TX and RX and set to 115200 Baud. The only components needed are a 10uF capacitor. The power supply is 3.3V. Ideal for an electronics enthusiast that already has a breadboard and serial interface.
This is a PIC32MX170F256B (256k Flash, 64k RAM)