合作
艺术
美容与健康
工艺
文化与历史
娱乐
环境
食品与饮料
逆向工程
科学
体育
技术
可穿戴设备
Making a LilyPad Night-Light
Ed

创建者

Ed

13. 七月 2026FI
31
0
0
0
0

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.

中级
1-2 hours

说明

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.

此步骤所需材料：

LilyPad Arduino Simple BoardLilyPad Arduino Simple Board1 个
LilyPad Light SensorLilyPad Light Sensor1 个
LilyPad LED - 5 pcsLilyPad LED - 5 pcs1 包
Conductive Thread - 60g (Stainless Steel)Conductive Thread - 60g (Stainless Steel)1 轴
羊毛毡片羊毛毡片1 张

所需工具：

手缝针手缝针
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.

所需工具：

装有 Arduino IDE 的电脑装有 Arduino IDE 的电脑
LilyPad FTDI Basic Breakout - 5VLilyPad FTDI Basic Breakout - 5V
USB-B 线USB-B 线
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.

此步骤所需材料：

LilyPad Coin Cell Battery Holder - w/Switch - 20mmLilyPad Coin Cell Battery Holder - w/Switch - 20mm1 个
CR2032 纽扣电池CR2032 纽扣电池1 个

材料

7

所需工具

4
估计总额
制作者买了什么。未标价的材料，在你购买的地方获取。
$75.97

相关蓝图

这些蓝图共享知识——技术、材料或原理

Blinking an LED with LilyPad Arduino

Blinking an LED with LilyPad Arduino

Ed 创作FI

可穿戴设备

43
0
0
0
0
0
Reading a Photoresistor — SIK Circuit 6

Reading a Photoresistor — SIK Circuit 6

Ed 创作FI

数字

104
0
0
0
0
0

CC0 公共领域

此蓝图以 CC0 协议发布。你可以自由复制、修改、分发和使用此作品，无需征得许可。

通过购买蓝图中的产品支持创客，他们将获得 创客佣金 （由供应商设定），或创建此蓝图的新版本并将其作为连接包含在你自己的蓝图中以分享收入。

讨论

(0)

登录 加入讨论

加载评论中...