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LDR Circuits

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Simple Light Operated Relay Circuit

Last updated on 20 June 2025 by Admin-Lavi Leave a Comment

Simple Light Operated Relay Circuit work like small auto light switch. It uses special sensor like LDR or photo diode which work like small eye. When light appears sensor gives signal to the circuit and then circuit turn the relay ON or OFF This help for turning outside light at night or start sprinkler type […]

Filed Under: LDR Circuits

Simple Automatic Night Lamp Circuit using IC 555

Last updated on 18 June 2025 by Admin-Lavi Leave a Comment

This Simple Automatic Night Lamp Circuit using IC 555 works like smart switch for night light. It have one special light sensor called LDR to check how much light is outside. When night come and outside become dark the circuit turns ON the lamp by itself. Then when morning comes and light comes back it […]

Filed Under: LDR Circuits, LED and Lamps

Simple Backyard Lamp Circuit using IC CD4060

Last updated on 18 June 2025 by Admin-Lavi Leave a Comment

This Simple Backyard Lamp Circuit using IC CD4060 works like smart switch for outside light. It uses one special sensor, LDR to know if it is day or night. When night comes circuit turn ON the backyard lamp by itself. Then morning comes with light again it turns OFF the lamp. It do this with […]

Filed Under: LDR Circuits, LED and Lamps

Simple Day Night Activated Switch Circuit using a Triac and LDR

Last updated on 8 July 2025 by Admin-Lavi Leave a Comment

Simple Day Night Activated Switch Circuit using a Triac and LDR show how to make circuit which turns ON and OFF things by seeing outside light. We only need one light sensor (LDR), one resistor, one capacitor and one special switch called Triac. This circuit are used many time for alarm it turns ON light […]

Filed Under: LDR Circuits, LED and Lamps

Flashlight Activated Remote Control Circuit

Last updated on 3 July 2025 by Admin-Lavi Leave a Comment

This tutorial show how to make a Flashlight Activated Remote Control Circuit. We can turn it ON using flashlight. It uses light sensor and this sensor is made with one transistor and special LDR that sees flashlight. This article tell step-by-step guide how to build flashlight remote circuit and how to use it. What is […]

Filed Under: LDR Circuits, Remote Control Circuits

Simple Automatic Day Night Switch Circuit

Last updated on 1 July 2025 by Admin-Lavi Leave a Comment

Saving electricity is very important and mostly in city where power is not enough. This article for Simple Automatic Day Night Switch Circuit show how to make easy auto light switch. It turn ON or OFF light when outside light changes. This way people can save money on electric bill. What is a Automatic Day […]

Filed Under: LDR Circuits, LED and Lamps

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