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.

It generates the clock, acts like a serial port, acts like a disk drive, and so on. However, the ATMega32 doesn’t directly have Arduino IDE support so you have to install a toolchain for it.

Here’s the code we promised you in the current issue of Macworld. To download a Zip archive containing this code as well as the compiled script, click here. long MINUTES = 15; // take a break ...