Hardware “sliders” (knobs) for Grasshopper in Rhino.
The 4 knobs are each connected to a 10 kohm potentiometer and then wired into an Arduino Uno board. Via USB cable into my computer where the Firefly component in GH reads the values. It works great and it’s very fun to adjust a 3d model in this rather “direct” way…
If you want to try this, please check out FireFly and download the Primer. You’ll find almost everything explained in there. I ordered an Arduino Starter Kit from the Swedish site Elektro:Kit and then I got some more potetiometers and some knobs.
The grey plastic case is 14 x 11 cm.