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@Tijmen
I have finally gotten round to adding a temperature sensor to my old Pavoni Europiccola (coming out of the top of the sightglass), so project PID is a go. I already have readouts of the sensor working, next step is hooking up the relay to my Arduino and doing some careful testing with switching it on and off. Once both in- and outputs are working I can do some rudimentary tuning to get the PID parameters in roughly the right direction, and then the real tuning can start. For now the switching is done externally, the Pavoni's own pressostat is still in the loop as a failsafe, but at some point I hope to completely take over control.
Also featured in the picture:
My custom tamper, it is working fine but I need to disassemble it to paint and polish it before doing final assembly. I have designed it so that I can replace the handle with a handle with force regulation, but for now I'm tamping by feel.
My doserless Compak K6 with a 3D-printed chute and a small laser-cut scoop for the grounds that stay in the chute.
Two Ikea Växer hydroponics sets. As there will be 12V and an Arduino anyway, I can easily switch some grow LEDs on and off automatically. So I will be making a little herb garden underneath my coffee station.
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