SparkFun Electronics - Arduino Mega

Products

Product Info

Arduino Mega

sku: DEV-09152

Description: Arduino is an open-source physical computing platform based on a simple i/o board and a development environment that implements the Processing/Wiring language. Arduino can be used to develop stand-alone interactive objects or can be connected to software on your computer (e.g. Flash, Processing, MaxMSP). The open-source IDE can be downloaded for free (currently for Mac OS X, Windows, and Linux).

The Arduino Mega is a microcontroller board based on the ATmega1280. 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.

Can't decide which Arduino is right for you? Arduino buying guide!

Documents:

Pricing

	300 in stock backorder allowed

$64.95	price
$58.46	10-99 (10% off)
$51.96	100+ (20% off)

	quantity

click on image to enlarge

Comments

12 comments

Log in to post comments.

	by neg +12 \| April 3, 2009 at 0:46 AM +0.15
sweet raptor jesus it's $100au

	by misha +7.8 \| April 3, 2009 at 3:55 AM +0.15
If you need something that big, do yourself a favor, go get an ARM. For example, Olimex's "Header board for LPC2103" (on this site in Development tools > LPC section) will bring you several times more computing power and much more powerful on chip peripheral devices for less then half price of this board.

Occam

+20

| April 3, 2009 at 1:01 PM

Exactly ... someone should port the Arduino firmware and environment to a 32-bit ARM, preferably one of the new Cortex-M3 variants. Can anyone say ARMDuino?

It would be killer, especially on these very fast ARM processors, to add some multi-threading capability to the Arduino language.

Better yet, see this site for a very rich extended BASIC based Stamp-like system that includes multi-threading capability and a huge built-in function library. http://www.zbasic.net/. Love to see this system running on an ARM Cortex-M3 and with actual boards vs. the Stamp compatible plug-ins.

	by Randy +3.6 \| June 4, 2009 at 10:45 PM 0
One of the things that's very tempting about this board is the 4 UARTs. Very few micro's have 4 UARTs.

	by wicks +2.4 \| October 18, 2009 at 5:12 PM 0
Seems like what I wanted, however: I can't get any of the serial ports to work other than the base Serial. Tried compiling/loading from Arduino 0017 on mac 10.6 and windows xp (partitions on the same machine). Is there something I'm missing to enable the other ports beyond Serial1.begin(38400)? I want to use this to control multiple MP3Triggers, not having much luck without functioning serials.

	by wicks +2.4 \| October 18, 2009 at 5:20 PM 0
Oops, apologies. The serial ports are working fine now. Total noob error: connecting device ground to arduino ground enabled the RX/TX communication over other Serials. Not sure why that matters for 1—3 but not Serial.

	by SideshowBob +3.8 \| August 23, 2009 at 1:55 PM 0
It would be nice to have 3.3V version of this board, like the Pro and Pro Mini that you guys make.

	by Praetorian +7.3 \| September 25, 2009 at 5:04 AM 0
Whether 3.3V or 5V, I'd love to see an Arduino Mega Pro. That board would definitely find its way into my shopping cart. (a mini version would properly be to big for a breadboard)

	by 5A6163 +1.2 \| January 21, 2010 at 7:00 AM 0
I agree. I'd love to see a 3.3v Pro version of this board.

	by Jassper +15 \| September 19, 2009 at 10:17 PM +0.19
Why the big price differance? http://www.liquidware.com/shop/show/AMEGA/Arduino+Mega

	by datapolo +2.4 \| October 29, 2009 at 2:33 AM 0
Mega Pro Mini - any plans for this and timescale? Thanks, Mike

chessplayer

+1.1

| December 30, 2009 at 10:05 PM

I've gotten one of these and it's great to have 8 KB RAM available. Well, a bit less that 8 KB if the Arduino IDE has loaded the default libraries including the HardwaareSerial library that eats over half a kilobyte all by itself.

Note that the Mega is not completely shield compatible with the Duemilanove; the SPI pins have been moved in the Mega.

It looks like the Mega's onboard power regulation circuitry is the same as that of the Duemilanove, so be careful if you're expecting the same current output per pin if you've got a whole lot more pins active.