Homemade espresso machine modding with Gagguino

For those unaware, Gaggia is a company that produces a range of affordable "entry level" espresso makers that offer good quality consumer espresso makers at reasonable prices. Entry-level machines don't offer precise temperature, pressure and steam control, which is where the Gagguino project comes in.

The Gagguino project is an "aftermarket" modification of many espresso machines, such as the Gaggia classic and the Gaggia classic pro. Key additions are a MAX6675 thermocouple module paired with a K-type thermocouple sensor for closed-loop temperature control. The options of adding an AC dimmer module that attaches to the pump motor and an XDB401 pressure sensor with a range of 0 Mpa to 1.2 Mpa, installed in line between the pump and the boiler, allow additional closed-loop control over pressure and flow profiling. Load cells can be attached to the drip pan to provide pour weight feedback with a Nextion 2.4″ LCD touchscreen that provides the user interface for profile selection and other interactivity . The project offers a "basic" modification using an Arduino Nano as the microcontroller, in keeping with its namesake, but has an option for an STM32 Blackpill module which can provide more functionality beyond the scope of the Nano.

The Gagguino project is open source with code and full documentation available on GitHub. There's also a Discord community for those who want help with their build or want to share their passion for DIY espresso modding with the Gagguino. Espresso machine hacks are one of our favorites and we have featured many projects on espresso machine builds and modifications ranging from PID control of classic espresso machines to beautiful closed loop homebrew espresso machines. /p>

Video after the break!

Thanks to [Chempy] for the tip!