فنون
الجمال والعناية
حِرَف
الثقافة والتاريخ
ترفيه
البيئة
الطعام والمشروبات
المستقبل الأخضر
الهندسة العكسية
العلوم
رياضة
التقنية
الأجهزة القابلة للارتداء
Making a LilyPad Night-Light
Ed

أنشأه

Ed

13. يوليو 2026FI
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Making a LilyPad Night-Light

Give your fabric a sense of sight. A LilyPad light sensor tells the microcontroller how bright the room is, and a short program switches an LED on when it gets dark. Sew it into a bag, a hat or a bedside patch for a soft glow that only appears at night — your first sensor-driven wearable.

متوسط
1-2 hours

التعليمات

1

Sew the board, sensor and LED

Sew a LilyPad Arduino, a LilyPad light sensor and a LilyPad LED onto felt. Wire it: the LED's + tab to pin 5 and its - tab to -; the sensor's + tab to the board's +, its - tab to -, and its signal (S) tab to analog pin A2. Keep the power (+), ground (-) and signal lines from crossing anywhere.

المواد لهذه الخطوة:

LilyPad Arduino Simple BoardLilyPad Arduino Simple Board1 قطعة
LilyPad Light SensorLilyPad Light Sensor1 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 programmer

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

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 night-light sketch

Paste this sketch and click Upload. It reads the light sensor and turns the LED on whenever the room is darker than the threshold.

lilypad_night_light.inoarduino
// LilyPad night-light: LED comes on when it gets dark.
// LED on pin 5, light sensor signal on analog pin A2.

const int LED_PIN = 5;       // LED
const int LIGHT_PIN = A2;    // light sensor signal
int threshold = 400;        // lower = waits for darker; raise to trigger sooner

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

void loop() {
  int light = analogRead(LIGHT_PIN);  // 0 (dark) .. 1023 (bright)

  if (light < threshold) {
    digitalWrite(LED_PIN, HIGH);       // dark -> LED on
  } else {
    digitalWrite(LED_PIN, LOW);        // bright -> LED off
  }

  delay(100);
}
4

Calibrate the threshold

Cover the sensor with your hand — the LED should come on; in a bright room it should stay off. If it triggers too early or too late, change the threshold number in the sketch and re-upload: higher turns it on in more light, lower waits for darker.

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 bag, hat or cushion — it now glows on its own whenever the light drops.

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

المواد

10

الأدوات المطلوبة

1
التكلفة الإجمالية المقدرة
$98.00

المخططات ذات الصلة

هذه المخططات تشارك المعرفة مع هذا — التقنيات والمواد والمبادئ

Blinking an LED with LilyPad Arduinoبواسطة Ed
Reading a Photoresistor — SIK Circuit 6بواسطة Ed

Related blueprints

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

Making a LilyPad Musical Patchelectronics
Sewing a LilyPad LED Circuitelectronics
Sewing a LilyPad Button Circuitelectronics
Making a Color-Changing LilyPad Patchelectronics
Blinking an LED with LilyPad Arduinoelectronics
Making a Motion-Reactive 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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