[Walter]’s device was based upon the Arduino Leonardo. Starting with the Caterina bootloader, modifications were made to enable the device to be locked and unlocked for programming.

The bad news is that they do take up programming space, but you won’t have to buy a hardware programmer. Programming a chip with a bootloader on it is beyond the scope of this tutorial.

Educational charity Raspberry Pi Foundation has released a version of Linux optimised for the £25 computer's ARM11 processor, writes Steve Bush. Based on the ATmega32U4 MCU, which offers 32k of flash ...

In a previous article, we looked at connecting various kinds of Arduino hardware to your Mac. Here's how to get started programming on them to create your own projects.

The small IMUduino Arduino Leonardo powered board is currently the world’s smallest Arduino Leonardo compatible board that includes integrated wireless motion and orientation sensing technology.