Project Description:
Old School Signalling System project is about making an automatic school bell system. We use a 9V battery, a breadboard, jumper wires, a DC motor, a voltage regulator, and an IR sensor. The system works like a traditional school bell. When you place your hand near the IR sensor, it detects the hand and turns on the DC motor. The motor spins and makes a steel ball on a string hit a hollow bell, producing a sound. This hands-free bell system is convenient and hygienic. It’s a great educational project for students to learn about sensors and motor control using basic electronic parts.
Components Required:
- 9V Battery with clip x 1
- Breadboard small x 1
- Jumper Wires – Male to Female x 8
- DC Motor x 1
- Voltage Regulator LM7805 x 1
- IR Sensor Module x 1
- Steel Ball x 1
- String x 1
- Hollow Bell x 1
IMAGE:

CIRCUIT DIAGRAM:
