Enter the ExtraCore library for Arduino, a software library that turns two or more Arduinos into a multi-core microcontroller with more pins than you’ll ever need.

This board also features 128 MB of RAM, 8MB of Flash and the usual compliment of Arduino pins in a Leonardo-compatible layout. Also on the SoC is a PCIE bus, Ethernet, a USB 2.0 host, and an SD card.

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 ...