This was supposed to be my Christmas project, but I got bored, and it turned out to be easier than I expected, so I finished well before Christmas.
It’s my first attempt at doing something with an arduino. It measures the temperature of the fridge and freezer. It uses a two line LCD for display, and two one-wire sensors for the measurements. Both devices have libraries and example code which I filched, which is why the programming was so easy (and is On github if anybody is interested)
I suppose the next job is to make a case for it. I don’t have a 3D printer or any way of working with plastic, so it’s going to have to be wood. Hmmm. I wonder if I could make something steampunk looking from wood and brass….