To reduce the temperature swing, [Rhys] decided to add a PID control loop ... resulting in a perfect brew every time. Enjoy [Rhys’s] video where he explains his build: ...

The dual-channel PID controller was originally meant as a humidity and temperature controller and was based on existing software for an ATmega328. But after years of tinkering, adding new features ...

From advanced PID temperature control to dual boiler ... The Mio is durable, stylish, luxurious, and gives you total control over brewing a delicious shot of espresso. “The Diletta Mio is ...