BC547 transistor » Hackatronic

Electronics project Sensors

Motion Sensor Light Circuit Diagram and Working

A Motion Sensor Light is an automatic lighting system that turns ON when it detects movement in its range and switches OFF after a certain period of inactivity. This system is widely used for energy conservation, security, and convenience. The circuit described here uses a PIR (Passive Infrared) sensor, a BC547 transistor, a relay, and […]

Bc 547 transistor projects Electronics project Electronics tutorial Transistors

Water Level Indicator Circuit using Transistor and ULN2003 IC

Want to build a simple and effective water level indicator circuit at home? In this guide, we’ll show you how to make a water level indicator using BC547 transistors, a few LEDs, and a buzzer. This is a fun and educational mini project for students and hobbyists interested in basic electronics. Concepts Covered: Transistor Switching […]