The Seeeduino v4.2 is an open source development board based around the ATmega328P-MU MCU. The board inherits all the features of the Arduino Duemilanove and Uno but also adds some of its own. The Seeeduino has pin layout compatibility with the Duemilanove and Uno, as well as compatibility with the Duemilanove's screw holes and board dimensions. The board features upgrades that improve performance and useability such as a micro-USB to keep a low profile, switchable 3.3 and 5V DC input and solder pads for all GPIOs.\n\n--Easy-to-use development board\n\n--14x Digital I/O pins\n\n--ICSP for the ATMEGA16U2 USB to serial chip\n\n--Micro-USB instead of USB type B\n\n--\nOur eBay Store\n\nSeeed 102010026 Seeeduino V4.2 Arduino Compatible Board with Upgrades!\n\nProduct Details\n\nThe Seeeduino v4.2 is an open source development board based around the ATmega328P-MU MCU. The board inherits all the features of the Arduino Duemilanove and Uno but also adds some of its own. The Seeeduino has pi;