DIY || Clap Counter From Calculator

by Molted in Circuits > Gadgets

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DIY || Clap Counter From Calculator

clap thunmb inst.jpg

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.

Circuit Diagram

clapp cd.jpg

This circuit is basically Transient Clap Switch Circuit.

Materials Required

clap comp.jpg

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-by-step Tutorial

DIY || Clap Counter from Calculator