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Blinking an LED with LilyPad Arduino
Ed

أنشأه

Ed

13. يوليو 2026FI
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Blinking an LED with LilyPad Arduino

Step up from a plain sewn circuit to a sewable computer. The LilyPad Arduino is a washable microcontroller you program from your PC, then run on a coin cell — so your fabric can blink, fade and react on its own. This project sews an LED to the board and uploads the classic 'blink' sketch: the gateway to every sensor-driven wearable that follows.

متوسط
1 hour

التعليمات

1

Sew the LilyPad Arduino and an LED

Sew a LilyPad Arduino Simple board and a LilyPad LED onto felt with conductive thread: the LED's + tab to numbered pin 5, and the LED's - tab to the board's - tab. Loop 3–4 times through each hole, trim tails, and keep the two lines from crossing.

المواد لهذه الخطوة:

LilyPad Arduino Simple BoardLilyPad Arduino Simple Board1 قطعة
LilyPad LED - 5 pcsLilyPad LED - 5 pcs1 عبوة
Conductive Thread - 60g (Stainless Steel)Conductive Thread - 60g (Stainless Steel)1 بكرة
Hand Sewing Needles (Assorted, 30-Pack)Hand Sewing Needles (Assorted, 30-Pack)1 عبوة
Wool Felt SheetWool Felt Sheet1 ورقة
2

Connect the FTDI programmer

Plug a LilyPad FTDI Basic Breakout onto the board's 6-pin programming header (line up GND to GND, DTR to DTR) and connect it to your computer with a USB cable. Install the free Arduino IDE, then choose the LilyPad Arduino board and the FTDI's serial port under Tools.

المواد لهذه الخطوة:

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

الأدوات المطلوبة:

Computer with Arduino IDEComputer with Arduino IDE
3

Upload the blink sketch

Paste this sketch into the Arduino IDE and click Upload. It flashes the LED on pin 5 on and off twice a second.

lilypad_blink.inoarduino
// Blink an LED sewn to a LilyPad Arduino
// The LED's + tab is stitched to pin 5, its - tab to the board's - (GND).

const int LED_PIN = 5;   // LilyPad LED sewn to pin 5

void setup() {
  pinMode(LED_PIN, OUTPUT);   // pin 5 drives the LED
}

void loop() {
  digitalWrite(LED_PIN, HIGH); // LED on
  delay(500);                  // wait half a second
  digitalWrite(LED_PIN, LOW);  // LED off
  delay(500);                  // wait half a second
}

// TRY THIS:
// - delay(100) for fast blinking, delay(2000) for slow
// - different ON and OFF times: HIGH delay(800), LOW delay(200)
4

Go wireless on a coin cell

Unplug the FTDI. Sew a LilyPad coin-cell battery holder to the board — + tab to +, - tab to - — and drop in a CR2032. Switch it on and the LED blinks on its own, no computer attached. Your fabric now runs its own program.

المواد لهذه الخطوة:

LilyPad Coin Cell Battery Holder - w/Switch - 20mmLilyPad Coin Cell Battery Holder - w/Switch - 20mm1 قطعة
CR2032 Coin Cell BatteryCR2032 Coin Cell Battery1 قطعة
5

Experiment

Re-attach the FTDI and change the sketch: adjust the delays for a heartbeat rhythm, or sew a second LED to another pin and blink them in turn. This is the base every LilyPad sensor project builds on.

المواد

9

الأدوات المطلوبة

1
التكلفة الإجمالية المقدرة
$90.00

المخططات ذات الصلة

هذه المخططات تشارك المعرفة مع هذا — التقنيات والمواد والمبادئ

Sewing a LilyPad LED Circuitبواسطة Ed
Blinking LED — Your First Arduino Projectبواسطة Admiral OOM

Related blueprints

Other builds that share materials, tools, or techniques with this one.

Using an LCD — SIK Circuit 15electronics
Sewing a LilyPad LED Circuitelectronics
Making a LilyPad Night-Lightelectronics
Making a Motion-Reactive LilyPad Patchelectronics
Making a Sound-Triggered LilyPad Patchelectronics
Making a Color-Changing LilyPad Patchelectronics

CC0 ملكية عامة

هذا المخطط مُصدر بموجب CC0. يحق لك نسخه وتعديله وتوزيعه واستخدامه لأي غرض، دون طلب إذن.

ادعم الصانع بشراء منتجات عبر مخططه حيث يكسب عمولة الصانع يحددها البائعون، أو أنشئ نسخة جديدة من هذا المخطط وضمّنه كرابط في مخططك لمشاركة الإيرادات.

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