Required Components for PIR Motion Sensor Light PIR Motion sensor Transistor BC547 (NPN) Relay module 12V Led strip Resistor 10k 12V DC socket Connecting wires 12V DC Adaptor / Battery PIR Motion ...

The automatic street light circuit is a practical application of a light-sensing system using an LDR (Light Dependent Resistor) and basic transistor switching. The core concept behind this system is ...

This automatic park light switch with LDR automatically turn ON the light when the surrounding light dims to a preset level. The first circuit diagram is an NPN design intended for negative grounded ...

This light sensor switch circuit allows the automatic connection of a lamp when the light is low (at nightfall) and will maintain the lamp ON for a certain period of time. This time can be adjusted ...

-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 ...

In this paper we propose a design using both a microprocessor and light sensors for automatic room light detection and control. Our design, the HLCM (home light control module) which will be installed ...