Introduction: Two Transient Clap Switch Circuits
Transient Clap Switch Circuit is the circuit which turns ON with a clap sound. The output remains ON for some time and then turns OFF automatically.
The time of activity can be controlled by varying the value of capacitance of Capacitor. More the capacitance, more is the time for which the output remains ON.
A condenser microphone is used as a sensor. The trigger can be clap/snap or any other sound capable of activating the circuit.
Here, I will show you two different ways to make transient clap automated circuit :
- Using 555 Timer IC
- Using Transistors
Step 1: Circuit Diagram
These are the circuit diagrams for making circuit using :
- 555 Timer IC
- Transistors
Step 2: Components
These are the Components Required for making circuit :
1. Using 555 Timer IC
• 555 Timer IC
• Condenser Microphone
• Transistor: BC547
• Resistors: 100K, 47K, 1K, 330Ω
• Capacitor: 10 μF
• LED
2. Using Transistors
• Transistors: BC547 (2)
• Condenser Microphone
• Resistors: 1M, 10K (2), 330 Ω
• Capacitor: 47 μF
• LED
Other Requirements:
• Battery: 9V and battery clip
• Breadboard
• Breadboard Connectors