Arduino Mega

From RepRapWiki
Jump to: navigation, search

Quoting verbatim from the Arduino website[[1]]

"The Arduino Mega is a microcontroller board based on the ATmega1280 (datasheet). It 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. It contains everything needed to support the microcontroller; simply connect it to a computer with a USB cable or power it with a AC-to-DC adapter or battery to get started. The Mega is compatible with most shields designed for the Arduino Duemilanove or Diecimila."



This is 400 pixels wide, and on the left.


  • Microcontroller: ATmega1280
  • Operating Voltage: 5V
  • Input Voltage (recommended): 7-12V
  • Input Voltage (limits): 6-20V
  • Digital I/O Pins: 54 (of which 14 provide PWM output)
  • Analog Input Pins: 16
  • DC Current per I/O Pin: 40 mA
  • DC Current for 3.3V Pin: 50 mA
  • Flash Memory: 128 KB of which 4 KB used by bootloader
  • SRAM :8 KB
  • EEPROM :4 KB
  • Clock Speed: 16 MHz

More details on the Arduino official page[[2]] including the schematic[[3]] and Eagle files[[4]]

NOTE: There is now a newer Arduino Mega: the Mega2560. See the official Arduino page


  • The offical Arduino Page[[5]]
  • Arduino Software [[6]]
  • Arduino Mega getting started guide [[7]]
  • Slightly more indepth general Arduino guide [[8]]
  • Information on another choice the MegaNano2560

Related Projects

The Arduino Mega is being used in a number of experimental projects as an alternative to the current generation of Mendel electronics, see Circuit board construction. A few examples at the time of writing include:

This area is being developed on an almost daily basis so please conduction a search[[9]] to find the latest information.