Ever have trouble justifying your hacking to anyone from another generation? [Domen] presented his mother with a custom-made device that monitors the milk temperature as it boils on the stove, preventing boil-over. And he made the device robust, simple to use, and foolproof. To his mom, it must look like he’s a wizard — able to conjure up home electronics out of solder smoke and some plywood.
Of course, we know better. Inside his gadget is a simple temperature sensor, an ATtiny841, a very nice home-made PCB, a buzzer, an LCD, and some pushbuttons. [Domen] rubbed together a few pre-existing libraries, and had a working prototype inside a nice wooden box on the quick. It’s a simple hack, but imagine how this must look to a muggle. For the detailed incantations, check out [Domen]’s GitHub for the project.
We especially like the dowel-based button caps and the overall clean and simple aesthetic. It speaks of both the materials on hand and the intended user. [Domen] says that he’s going to add a low-temperature alarm too, which will add a second alarm for when the milk has cooled down enough to add in the cultures that make yogurt — presumably the reason for the boiling milk in the first place. And check out the rivets on the double-sided board. We love that technique here at our home labs.
This project exemplifies one of the reasons that we DIY. It fills a ridiculously niche need, and fills it with style. Try buying that at Walmart!