On top of that, it lowers the barrier of entry to developing this kind of industrial hardware by being compatible with all the favorites Arduino, Raspberry Pi, Windows, Linux, etc.

The OpenPLC is based on an ATMega328 and is compatible with Arduino code. There are a few extension boards for digital and analog IO, as well as Ethernet.

Open PLCs Enhance Building Automation By Frank Bicknell Manufacturing Digitalization Summary An HVAC company in search of modern machine-control advantages finds an Arduino-compatible open PLC ...