#04beginner
Sound Maker
Create tones and melodies with a buzzer and button
Watch the circuit build itself: components drop in, wires connect, and the output comes alive.
Components
Everything you need for this project.
1x Passive buzzer
1x Tactile push button
1x 10KΩ resistor
3x jumper wires
How It Works
PWM (pulse width modulation), frequency and tone generation, and how a passive buzzer converts electrical signals to sound.
InputPush Button
ProcessingESP32-S3 detects press, generates PWM frequency
OutputBuzzer plays tones
What You Build
Button on D1 (with pull-down) triggers tones on a passive buzzer on D2. Different press patterns produce different tones.
African Context
Buzzers and tone generators are used in market stall alarms and motorcycle horn circuits. PWM is the foundation for radio and communication technology.
What You'll See
Pressing the button plays tones. Display shows the current frequency being generated.