Arduino UNO board for $28.00

The Arduino Uno is an open source electronics prototyping platform based on the ATmega328 microcontroller. It is equipped with 14 digital I/O pins, six of which can be used as PWM outputs, 6 analog inputs, 16MHz oscillator, USB interface, DC power jack and an ICSP header. Only the board is included and a USB cable is required to program.