OpenEVSE (Electric Vehicle Supply Equipment) is an Arduino-based charging station created by Christopher Howell and Sam C.
[1] The charger is composed of open-source software[2] and hardware which can be made by individuals.
[3] The project started in February 2011,[4][1] with an experiment aimed at generating the SAE J1772 pilot signal[5] on an Arduino-compatible ATmega328 8-Bit AVR MCU.
Subsequent experiments continued until a prototype J1772-compatible controller was created.
As of now, OpenEVSE powers charging stations all over the world.