Arduino Pro 328 – 3.3V/8MHz

Features:

• ATmega328 running at 8MHz external resonator (select ‘Arduino Duemilanove w/ 328’ within the Arduino software).
• Low-voltage board needs no interfacing circuitry to popular 3.3V devices and modules (GPS, Accelerometers, sensors, etc)
• USB connection off board
• 3.3V regulator
• Max 150mA output
• Over current protected
• Reverse polarity protected
• DC input 3.3V up to 12V
• Resettable fuse prevents damage to board in case of short
• Power select switch acts as on/off switch

Dimensions: 2.1×2.05″ (53.34×52.08mm)

Documents:

• Schematic
• Eagle Files