A new bigger Arduino has been spotted in the wild.
The Arduino Mega is the new larger brother of the Arduino Duemilanove microcontroller board. Instead of being based on a 28-pin Atmel ATmega168 or ATmega368 the Mega is based on the larger 100-pin ATmega1280 device.
The Arduino Mega board has 54 digital input/output pins (of which 14 can be used as PWM outputs), 16 analog inputs, 4 UARTs (hardware serial ports), a 16 MHz crystal oscillator, a USB connection, a power jack, an ICSP header, and a reset button.
The Mega is compatible with most shields designed for the Arduino however a few differences to note from Atmega1280 and ATmega386 are:
My Arduino Mega arrived last Saturday 28th March from http://www.coolcomponents.co.uk. This was a pretty quick service from Coolcomponents as the Mega was only announced on Thursday 26th March.
The additional I/O will be very useful, as will the larger available board area => bigger shields but the Arduino Mega still have the problem of available coast area for I/O connectors.