So it’s no surprise that [krallja] was able to use an old-style video output chip to drive a TV with an Arduino.

While the Arduino family of boards connect to your computer using a USB virtual serial port, the ATmega ones have an actual serial connection on-board.

Arduino runs BASIC with colour output Check out the this colourful but BASIC use of Arduino... I flagged this one in the "Tweets of the Week" section of Electronics Weekly magazine, from the Arduino ...

Input and Output Arduino programming environment basics Serial Monitor usage with text, variables and pin states Also, depending on class interest: creating schematics and PCBs using the educational ...

A quick strong DIY output buffer for an Arduino (or other) pulse generator? I am not sure why pulse generator buffers are so fascinating at the moment.