This diy sound activated lights circuit turns a lamp ON for a short duration when the dog barks (or a relatively strong sound) giving an impression that the occupants have been alerted so it can be ...

If you purchase an independently reviewed product or service through a link on our website, Rolling Stone may receive an affiliate commission. When it comes to lighting systems, every DJ needs visuals ...

This light activated remote switch circuit could be operated using a flashlight beam and could eb used for toggling a specified load from a distance using an external light source such as a flashlight ...