While the Raspberry Pi has very good support for an I2C bus, a lot of very cool chips – including the in system programmer for just about every ATtiny and ATmega microcontroller – use an SPI bus.

Requirements The Retro Pie can work with either the $25 (£18.65 in the UK, and AU$28.50 in Australia) Raspberry Pi Model A or the slightly more expensive Model B, I recommend the latter.

Raspberry Pi's Raspbian gets new features: File manager, Thonny Python IDE updates The Raspbian OS gets file manager improvements and support for the Linux Orca accessibility app.