Microcontroller board based on the ATmega328. With its tiny form factor, breadboard compatibility, and plenty of I/Os, this is the board to squeeze into your smallest projects.
It has 22 digital input/output pins (up to 6 can be used as PWM outputs and up to 8 as analog inputs), a 16MHz clock, a mini USB connection, TWI, SPI, UART interfaces, an ICSP header and a reset button. Thanks to the integrated DC/DC converter, it can be powered from a 7~12V source. It has more analog and digital pins than the Yellow board and is the perfect solution when you need to shrink down your project. Fully Arduino® compatible.
The board has all you need to get started, just plug in a USB cable and play!