At home / Machine
An espresso machine that follows a pressure profile.
My everyday Gaggia Classic, rewired around Gaggiuino ↗, the community-built, open-source control system. The machine now holds a temperature and follows a pressure profile.
What changed in the machine
The stock thermostats are gone. A K-type thermocouple and a pressure sensor feed the Gaggiuino controller, which switches the heater through a solid-state relay and drives the pump and the valve.
- Machine
- Gaggia Classic, Ulka EP5 pump, three-way valve
- Added
- Gaggiuino controller · K-type thermocouple · pressure sensor, 0–1.2 MPa · solid-state relay
- On the network
- The machine’s own page, which the home dashboard opened
Gaggiuino is the work of its open-source community: the controller design, the firmware and the profiles. My part is fitting it to this machine.