I get Arduino Nanos from singapore (eBay) for £2.50 a pop, with a USB cable, whereas ESP8266 is about £3.50 ish, so that coupled with the extra functionality on a Nano, would prefer that over an ...

The proliferation of DIY 3D printers has been helped in large measure by the awesome open-source RepRap project. A major part of this project is the RAMPS board – a single control board / sh… ...