Description ATmega328 running at 8MHz with external resonator (0.5% tolerance) Over current protected On board Power and Status LEDs DC input 3.3V up to 12V RoHS Compliant Features: USB connection off board Weighs less than 2 grams! Supports auto-reset Reverse polarity protected Analog Pins: 8 Digital I/Os: 14 View more Links PDF File Website