Introducing RaspberryLatte - My Gaggia Classic Pro Controller (PID, flow control, brew profiles, and more!)

• RaspberryLatte

  2 15 8.2 C

  A full stack suite to add smarts to a single boiler espresso machine using a Raspberry Pi Pico as the brains.

Of course, the board needed firmware before it was useful. Written entirely in C, the firmware reads all the relevant sensor data, runs the machine logic, and sets the pump, boiler, and LEDs. Using a pseudo-OOP approach, the firmware is broken down into modules with structs representing physical objects (e.g. the scale) or abstract objects (e.g. PID controllers). The firmware is documented using Doxygen and tracked using GitHub.

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