-Darkness-Light-Sensor-Circuit-using-LDR-project-Analog-Electronics-. The Darkness Sensor Circuit is a straightforward analog electronics project designed to detect ambient light levels using a Light ...

Light sensor This circuit can compare the Light level in an area. It uses a PN Photodiode as the light sensor and IC CA 3140 as voltage comparator. The circuit is ideal as the front end of burglar ...

As you probably know the LDR is a light dependent resistor. Normally the resistance of an LDR is very high, sometimes as high as 1MΩ, but when they are illuminated with light resistance drops ...

This shift increases the base voltage of the Darlington pair above 1.4V, triggering the transistor and energizing the relay. As a result, the light turns on. Circuit Implementation. In a typical LDR ...

A project using an ESP32, PIR motion sensor, and LDR light sensor to control a bulb. The bulb turns on when there is no light and motion is detected, and turns off otherwise. - ...

This is a small and light weight IOT device which is stuck/glued on to the Energy meter with LDR sensor facing on to the energy meters LED. ESP8266/ESP32 keeps track of the pulse count and sends the ...