touch

While observing the audio output of my smartphone on the oscilloscope, I noticed a signal being generated when I touch the touchscreen. This signal is around 500Hz and appears in groups of 3 peaks, with intensity proportional to the skin/touchscreen contact area: The output is from an AUX cable...

Hello everyone, I'm working on a prototpe for a project and I have several questions. I'm a complete beginner in electronics even if I have acquired some basis in my scolarity. Here's the blueprint of the project. The orange surface is the one that should be touch sensitive. It needs to be...