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Making a Color-Changing LilyPad Patch
Ed

Creado por

Ed

13. julio 2026FI
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Making a Color-Changing LilyPad Patch

Sew a patch that glows in any color. A single RGB LED holds red, green and blue elements; by fading each one with the microcontroller's PWM pins you mix millions of colors and cycle through the rainbow. The e-textile version of the classic RGB colour-mixing project.

Intermedio
1-2 hours

Instrucciones

1

Sew the board and RGB LED

Sew a LilyPad Arduino onto felt. The RGB LED has four legs — bend each into a small loop so it can be sewn. Wire the common cathode (the longest leg) to -, and the red, green and blue legs to pins 5, 6 and 9. Keep the four lines from touching each other.

Materiales para este paso:

LilyPad Arduino Simple BoardLilyPad Arduino Simple Board1 pieza
LED - RGB Diffused Common Cathode - 5mmLED - RGB Diffused Common Cathode - 5mm1 pieza
Conductive Thread - 60g (Stainless Steel)Conductive Thread - 60g (Stainless Steel)1 bobina
Plancha de fieltro de lanaPlancha de fieltro de lana1 hoja

Herramientas necesarias:

Agujas de coser a manoAgujas de coser a mano
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.

Herramientas necesarias:

Ordenador con el IDE de ArduinoOrdenador con el IDE de Arduino
LilyPad FTDI Basic Breakout - 5VLilyPad FTDI Basic Breakout - 5V
Cable USB-BCable USB-B
3

Upload the color-mixing sketch

Paste this sketch and upload. It fades the LED through red, green, blue and the mixes using analogWrite (PWM).

lilypad_color_changing.inoarduino
// Mix colors on a common-cathode RGB LED.
// Red/Green/Blue legs on PWM pins 5, 6, 9; common cathode to - (GND).

const int RED_PIN = 5;
const int GREEN_PIN = 6;
const int BLUE_PIN = 9;

void setColor(int r, int g, int b) {
  analogWrite(RED_PIN, r);     // 0 = off, 255 = full
  analogWrite(GREEN_PIN, g);
  analogWrite(BLUE_PIN, b);
}

void setup() {
  pinMode(RED_PIN, OUTPUT);
  pinMode(GREEN_PIN, OUTPUT);
  pinMode(BLUE_PIN, OUTPUT);
}

void loop() {
  setColor(255, 0, 0);   delay(500);  // red
  setColor(0, 255, 0);   delay(500);  // green
  setColor(0, 0, 255);   delay(500);  // blue
  setColor(255, 255, 0); delay(500);  // yellow
  setColor(0, 255, 255); delay(500);  // cyan
  setColor(255, 0, 255); delay(500);  // magenta
  setColor(255, 255, 255); delay(500);// white
}
4

Watch it cycle, then mix your own

The LED fades through the colors on its own. Make your own by changing the three numbers in setColor(red, green, blue) — each 0–255. Note: at the LilyPad's lower voltage blue and green look a little dimmer than red, which is normal for RGB LEDs.

5

Go wireless and wear it

Plug a 3.7 V LiPo into the LilyPad Arduino's JST connector and switch on — the higher voltage also makes the colors brighter. Sew the felt onto a bag or costume for a colour-changing glow.

Materiales para este paso:

LiPo Battery 3.7V 1000mAh (JST Connector)LiPo Battery 3.7V 1000mAh (JST Connector)1 pieza

Materiales

5

Herramientas requeridas

4
Total estimado
Lo que compró quien lo hizo. Los materiales sin precio se consiguen donde tú los compres.
MX$1,669.43

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