There seems to be nothing a 555 can’t do. We’ve seen it before, but [electronzapdotcom] reminds us you can use a 555 and a few parts to make a reasonable touch switch in this video, embedded below.

You can’t have a touch sensitive switch without a way to detect the presence of a finger! A touch sensor, especially a capacitive touch sensor, has some surprisingly sophisticated electronics to ...

If you buy something from a Verge link, Vox Media may earn a commission. See our ethics statement. is a deputy editor and Verge co-founder with a passion for human-centric cities, e-bikes, and life as ...