Tag

#buzzer

3 tutorials

arduino beginner 30 min

Build the Simon memory game with 4 buttons, 4 LEDs, and a buzzer. State machines, tone(), and the game loop that scales to any difficulty.

arduino beginner 30 min

Build an MQ-2 gas and smoke alarm on an Arduino: wiring, warm-up, calibration, buzzer code, and the honest limits of a DIY detector.

esp32 beginner 20 min

Use a piezo buzzer with an ESP32 to play tones, melodies, and alarm sounds. The LEDC peripheral does this in hardware, with no CPU overhead.