Introduction: DIY || Clap Counter From Calculator

Here, I am going to show you how to make a ‘Clap Counter’ from a Calculator.

In Clap Counter, every time a clap is made, a count is recorded.

*You can re-use the calculator for normal functioning.*

This project is based on Transient Clap Switch Circuit which is rendered to count the claps.

Step 1: Circuit Diagram

This circuit is basically Transient Clap Switch Circuit.

Step 2: Materials Required

To make this project, we require :

• Calculator

• 555 Timer IC

• BC 547 (2)

• Relay (6V)

• Condenser Microphone

• Resistors - 1K Ω, 47K Ω, 100K Ω

• Capacitor - 1 μF

• Diode - 1N4007

• Switch

• Battery and Battery Clips

• PCB • Cardboard

• Wires

Major Tools required:

• Hot Glue Gun

• Soldering Iron and Solder Wire

Step 3: Step-by-step Tutorial