The Arduino is an open-source micro controller development system that easily interfaces with a computer via USB. The Arduino makes working with micro controllers so simple that people with little electronics experience can hit the floor running. Also, because it is open-source, individuals with a little more in-depth knowledge can access the source-code and expand upon the existing platform to suit their needs. Since it is so versatile, there is a large array of Arduino projects on Instructables for individuals of any skill level to start exploring the wild world of Arduino development.
http://cgi.ebay.ca/ws/eBayISAPI.dll?ViewItem&ssPageName=STRK:MEWAX:IT&item=260403092528
came out to 33$ with taxes.
Of course, I also don't shop at Walmart.
(and yes, I'm replying to an old post, but it's still out there...)
So far so good
But it's best to shop around.
I am not sure what advantage they have over Microchip PIC devices though - I'll do some more digging!
PCB Police Electronics Forum - Try our competition!
This is not another Arduino HOWTO with circuits, schematics & sketches...
Arduino for Beginners Blog :
http://arduino-for-beginners.blogspot.com/
How-to Tuesday: Arduino 101 the LED
How-to Tuesday: Fun with the Arduino Starter Kit
How-To Tuesday: Arduino 101 potentiometers and servos
How-To Tuesday: Ping))) ultrasonic sensor
How-to Tuesday: Arduino 101 Accelerometers
look at them in order.