Photographers, makers, and Arduino enthusiasts interested in building their very own incident light meter for old meterless mechanical film cameras will surely be intrigued by a project published on ...

In this experiment we are going to work with a sensor which is a resistor that depends on light. In a dark environment, the resistor will have a very high resistance. As photons (light) land on the ...

I recently had to build an infrared close proximity sensor that could tell if something was dropped in a parcel delivery drop box. After some searching, I ended up using a microcontroller and a piece ...