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Making a Color-Changing LilyPad Patch
Ed

Yaremwe na

Ed

13. Nyakanga 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.

Hagati
1-2 hours

Amabwiriza

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.

Ibikoresho by'iyi ntambwe:

LilyPad Arduino Simple BoardLilyPad Arduino Simple Board1 igice
LED - RGB Diffused Common Cathode - 5mmLED - RGB Diffused Common Cathode - 5mm1 igice
Conductive Thread - 60g (Stainless Steel)Conductive Thread - 60g (Stainless Steel)1 agakoni
Urupapuro rw'ubwoya bwashongeshejweUrupapuro rw'ubwoya bwashongeshejwe1 urupapuro

Ibikoresho bikenewe:

Inshinge zo kudoda n'intokiInshinge zo kudoda n'intoki
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.

Ibikoresho bikenewe:

Mudasobwa Ifite Arduino IDEMudasobwa Ifite Arduino IDE
LilyPad FTDI Basic Breakout - 5VLilyPad FTDI Basic Breakout - 5V
Umugozi wa USB-BUmugozi wa 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.

Ibikoresho by'iyi ntambwe:

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

Ibikoresho

5

Ibikoresho bikenewe

4
Igiteranyo Giteganyijwe
Ibyo uwabikoze yaguze. Ibikoresho bidafite igiciro ubigura aho ubibonye.
$87.16

Blueprint zijyanye

Izi blueprint zisangira ubumenyi — uburyo, ibikoresho cyangwa amahame

Blinking an LED with LilyPad Arduino

Blinking an LED with LilyPad Arduino

na EdFI

Digitale

43
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0
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Driving an RGB LED — SIK Circuit 3

Driving an RGB LED — SIK Circuit 3

na EdFI

Digitale

101
0
0
0
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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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