[mircemk] shows how to create a simple non-contact proximity sensor using little more than ... that it’s possible to measure a capacitor’s capacitance using two microcontroller pins and ...

Well, think again, as [Limi DIY] retrofits the processing element ... we’ll recall that the capacitance between two parallel conductive plates is linearly proportional to the surface area.

ESP32 boards may be complex for beginners but offer a wide range of features for DIY projects ... you’ll need a proper sensor ...

With this setup, the Raspberry Pi is used to control and monitor the connected components, which include a capacitive ... more pizzazz, DIY Machines also integrated a PIR motion sensor to the ...