“A Thermometer Clock with no screen, numbers or visible interface.
I made this device, a thermometer-clock without screen, buttons, needles or any visible interface.
It may not be the most practical device, but we can’t deny that it’s a cool idea.
I think it might be a good device for people who live far from home and want to feel a “physical” bond with their place of origin.
It’s based on a NodeMCU, a peltier plate and a solenoid, and uses a PID system to reach the target temperature accurately.”