IoTSimulator
3 Projects

Audio Projects

Explore beginner-friendly projects using Audio. Run them in the simulator, tweak the code, and learn step by step.
All Categories
Build a 4-Key Piano Synthesizer with a Raspberry Pi Pico W
I
IoTSim Editor
Oct 11, 2026

Build a 4-Key Piano Synthesizer with a Raspberry Pi Pico W

Build an interactive musical synthesizer with the Raspberry Pi Pico W. Play distinct notes (Do, Re, Mi, Fa) using 4 tactile pushbuttons, driving a piezo audio buzzer with synchronized color-coded LED visual indicators.
Raspberry Pi Pico WMusic +3
Build a Motion Security Chime with an Arduino Nano
I
IoTSim Editor
Oct 3, 2026

Build a Motion Security Chime with an Arduino Nano

Build a compact perimeter intruder alarm and entrance chime with the Arduino Nano V3. Interface an HC-SR501 PIR motion sensor, an SPDT arming slide switch, and a dual-tone piezo sounder with serial status logging.
Arduino NanoSensors +3
Send an SOS Signal with an ATtiny85 and a Buzzer
I
IoTSim Editor
Sep 22, 2026

Send an SOS Signal with an ATtiny85 and a Buzzer

Press a button and watch a red LED flash while a buzzer beeps out the international SOS signal — three short, three long, three short. This project teaches you how to control timing precisely with a tiny 8-pin microcontroller.
ATtiny85Audio +3