Simple Light Operated Relay Circuit work like small auto light switch, as it uses special sensor like LDR or photo diode which work like small eye. Furthermore, when light appears sensor gives signal to the circuit and then circuit turn the relay ON or OFF; and this help for turning outside light at night or […]
LDR Circuits
Automatic Parking Light Switch Circuit
This special Automatic Parking Light Switch Circuit makes car parking lights turn ON by itself and it also helps to look outside to see how bright it is. Here, one light sensor is like LDR thing which check the light outside and if outside it become dark, more dark than set level then circuit turn […]
Automatic Night Lamp Circuit using IC 555
To begin with, this Automatic Night Lamp Circuit using IC 555 works like smart switch for night light, it also 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 and then when morning comes and […]
Backyard Lamp Circuit using IC CD4060
To begin with, this Backyard Lamp Circuit using IC CD4060 works like smart switch for outside light, as it uses one special sensor, LDR to know if it is day or night. Hence, when night comes circuit turn ON the backyard lamp by itself and when morning comes with light again it turns OFF the […]
Simple Day Night Activated Switch Circuit using a Triac and LDR
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; also we only need one light sensor (LDR), one resistor, one capacitor and one special switch called Triac. Moreover, many alarm systems use this circuit because it turns ON […]
Flashlight Activated Remote Control Circuit
This project show how to make a Flashlight Activated Remote Control Circuit where we can turn it ON using flashlight. Also, the circuit uses a light sensor built with a transistor and a special LDR that detects flashlight. Furthermore, this article tell step-by-step guide how to build flashlight remote circuit and how to use it. […]