touch sensor

I'm trying to upgrade my bed with touch sensor light. I know about TTP223 touch sensors but these only work for one spot My plan is to stick a long piece of conductive strip which will run from one side of the headboard to the other. The light should turn on if I touch anywhere on that stip...

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...

I am seeking ideas, or thoughts, on how to make a cable connected touch pen invisible to the capacitive touch screen of a modern smartphone without mechanically lifting the pen (see illustration). This is for a two axis (no lifting!) planer lego robot I am building to teach machine learning, in...

I want to create a chess board that detects where each piece is located. Existing technology from DGT uses small coils and capacitors, but this solution apparently does not work when metal is involved. My chess pieces have a small magnet at the bottom as they are going to be used on a...

Hi everyone, I’m very new here and I’m currently working on a very small project that seemd as if it would be simple at first but is proving to be harder than expected with little to no tech knowledge as of yet. It’s a project for my cat & new kittens. They have a laser cat toy that turns on...

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...