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Making a LilyPad Musical Patch
Ed

Yaremwe na

Ed

13. Nyakanga 2026FI
20
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Making a LilyPad Musical Patch

Sew a patch that plays a tune. A LilyPad buzzer and a button let the microcontroller sing a short melody whenever you press it — a musical badge, a fabric greeting card, or a costume piece. This project introduces the buzzer and the Arduino tone() function that turns pin signals into notes.

Hagati
1-2 hours

Amabwiriza

1

Sew the board, buzzer and button

Sew a LilyPad Arduino, a LilyPad buzzer and a LilyPad button onto felt. Wire it: the buzzer's + tab to pin 9 and its - tab to -; the button's tabs to analog pin A2 and to -. Keep the lines from crossing.

Materials for this step:

LilyPad Arduino Simple BoardLilyPad Arduino Simple Board1 igice
LilyPad BuzzerLilyPad Buzzer1 igice
LilyPad Button BoardLilyPad Button Board1 igice
Conductive Thread - 60g (Stainless Steel)Conductive Thread - 60g (Stainless Steel)1 agakoni
Hand Sewing Needles (Assorted, 30-Pack)Hand Sewing Needles (Assorted, 30-Pack)1 agapaki
Wool Felt SheetWool Felt Sheet1 urupapuro
2

Connect the programmer

Plug the LilyPad FTDI onto the programming header and connect the USB cable. Open the Arduino IDE and select the LilyPad Arduino board and its serial port.

Materials for this step:

LilyPad FTDI Basic Breakout - 5VLilyPad FTDI Basic Breakout - 5V1 igice
SparkFun Cerberus USB Cable - 1.8 meterSparkFun Cerberus USB Cable - 1.8 meter1 igice

Tools needed:

Computer with Arduino IDEComputer with Arduino IDE
3

Upload the melody sketch

Paste this sketch and upload. Pressing the button plays a short rising scale on the buzzer.

lilypad_musical_patch.inoarduino
// Press the button to play a short tune on the LilyPad buzzer.
// Buzzer + on pin 9, button between pin A2 and - (GND).

const int BUZZER_PIN = 9;
const int BUTTON_PIN = A2;   // read as a digital input, pressed = LOW

// A short tune: note frequencies (Hz) and how long each plays (ms)
int melody[]    = { 262, 294, 330, 349, 392 };  // C D E F G
int durations[] = { 200, 200, 200, 200, 400 };

void setup() {
  pinMode(BUZZER_PIN, OUTPUT);
  pinMode(BUTTON_PIN, INPUT_PULLUP);  // built-in pull-up: unpressed reads HIGH
}

void loop() {
  if (digitalRead(BUTTON_PIN) == LOW) {   // button pressed
    for (int i = 0; i < 5; i++) {
      tone(BUZZER_PIN, melody[i], durations[i]);
      delay(durations[i] + 50);
    }
    noTone(BUZZER_PIN);
  }
}
4

Press to play, then compose

Press the button — you should hear the five notes. Change the tune by editing the melody[] frequencies (higher number = higher note) and the durations[] in milliseconds, then re-upload. Add more notes to both arrays to make a longer song.

5

Go wireless and wear it

Unplug the FTDI, sew a LilyPad coin-cell holder to the board (+ to +, - to -), drop in a CR2032 and switch on. Sew the felt onto a badge or card — press it to play your tune anywhere.

Materials for this step:

LilyPad Coin Cell Battery Holder - w/Switch - 20mmLilyPad Coin Cell Battery Holder - w/Switch - 20mm1 igice
CR2032 Coin Cell BatteryCR2032 Coin Cell Battery1 igice

Ibikoresho

10

Ibikoresho bikenewe

1
Estimated Total
$96.00

Blueprint zijyanye

Izi blueprint zisangira ubumenyi — uburyo, ibikoresho cyangwa amahame

Blinking an LED with LilyPad Arduino

Blinking an LED with LilyPad Arduino

na EdFI

Microcontrollers

20
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Sewing a LilyPad Button Circuit

Sewing a LilyPad Button Circuit

na EdFI

Digital

20
0
0
0
0
0
Using a Piezo Buzzer — SIK Circuit 11

Using a Piezo Buzzer — SIK Circuit 11

na EdFI

Digital

81
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0
0
0
0

CC0 Umurenge rusange

Iyi blueprint yasohowe munsi ya CC0. Ushobora gukoporora, guhindura, gukwirakwiza no gukoresha nta kwemererwa.

Shyigikira Umuremyi ugura ibicuruzwa binyuze muri Blueprint ye Komisiyo y'Umuremyi byashyizweho n'Abacuruzi, cyangwa kora verisiyo nshya y'iyi Blueprint ukayinjiza nk'isano muri Blueprint yawe kugira ngo musangire inyungu.

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