Building the controller

A project log for AVR controlled espresso machine

ATmega32 based controller/display for my old espresso machine. It controls brew/steam temperature, pump, grinder etc.

Tobias RathjeTobias Rathje 02/01/2016 at 11:380 Comments

After I had a working prototype on breadboard the final controller was built into a small plastic project box:

with a female D-Sub connector to match the connector on the machine:

The final result with blue LCD and four buttons:

Yeah, I know, it's pretty ugly and it definately won't win any design prizes, but it works :-)