Here is a light-operated light switch circuit built with solid state components that is used to operate a lamp. During darkness the resistance of LDR is in the MΩ range and so the triac does not ...

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 ...

This unit can control up to 500W of lighting. However the load must be resistive, i.e. normal lamps. Lights containing transformers are not suitable. Llight operated switches are not new ideas, but ...

Over the past few years, Google has been quietly overhauling its data centers, replacing its networking infrastructure with a radical in-house approach that has long been the dream of those in the ...

Most DIYers shy away from doing electrical work for fear of getting shocked or causing a fire. And that’s certainly understandable; electricity is not to be trifled with. However, there are many ...

Output devices such as motors, solenoids, bulbs, buzzers, relays, LEDs, and 7-segment displays are used in many electronic circuits. Circuit diagrams illustrate how these devices are connected and ...

Smart light switches that can be controlled through Alexa or Google Assistant are nothing new, but the iDevices Instinct takes things a step further: it actually has Alexa built in, turning the switch ...

Wemo adds three-way capabilities to its Wemo WiFi smart switch, providing homeowners extra flexibility and saving them some cash by eliminating the need for a companion switch. Wemo has handily solved ...