DIY || Clap Counter From Calculator
by Molted in Circuits > Gadgets
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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.
Circuit Diagram

This circuit is basically Transient Clap Switch Circuit.
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-by-step Tutorial
