Pro mini

Pro mini 

• ATmega328 running at 16MHz with external resonator (0.5% tolerance)
• 0.8mm Thin PCB
• USB connection off board
• Supports auto-reset
• 5V regulator
• Max 150mA output
• Over current protected
• Weighs less than 2 grams!
• DC input 5V up to 12V
• On board Power and Status LEDs
• Analog Pins: 8
• Digital I/Os: 14