Here are some DIY LDR switch circuits available on our website and the web. LDR switches are used to switch a relay or other device when light are present or absent. LDRs or Light Dependent Resistors ...

High voltage is no joke, but you don’t need special electrical knowhow or skills to safely replace your light switch or ...

There are a wide range of applications for light sensitive switches: lighting, entrance door, automatic staircase, automatic opening of doors to the action of a ray of light, alarm systems, etc… Many ...

Experimenting with batteries, bulbs, buzzers, switches and other electrical components is a great way to learn about circuits and start to think about how to incorporate sounds into your Build a ...

A light switch faceplate that’s warm to the touch is a sign of an overloaded circuit. If you have a lighting fixture with ...

Mechanical switches can be noisy, generating multiple transient pulses that may cause faulty operation of fast digital circuits. In this design, a pair of MOSFETs are ...

PITTSBURGH, March 25, 2024 (GLOBE NEWSWIRE) -- Coherent Corp. (NYSE: COHR), a global leader in optical communications materials, components, and subsystems, announced today the introduction of a new ...

Scientists built a nano switch that controls excitons, chargeless quantum quasiparticles, at room temperature.