Tone Melody 40

Generate tones for alerts, teaching kits, and robot feedback.

/*
  Roboda verified Arduino sample 0989
  Feature: Tone Melody
  Generated for online build, classroom practice, and hardware upload testing.
*/

const byte buzzerPin = 9;
int notes[] = {262, 294, 330, 392, 440};
byte noteIndex = 0;

void setup() {
  pinMode(buzzerPin, OUTPUT);
}

void loop() {
  tone(buzzerPin, notes[noteIndex], 120);
  noteIndex = (noteIndex + 1) % 5;
  delay(185);
}

How it works

Practice this Arduino feature with a verified Roboda sketch.

1. Read the constants at the top of the sketch.
2. Wire the pins exactly as listed in the pin map.
3. Upload or compile once before changing values.
4. Change one value at a time and watch Serial Monitor or the output device.

Connections