Arduino 生氣指數 LED 燈

本文使用TinkerCAD Circuits來示範聲音感測器的應用：「生氣指數」，聲音越大LED就越亮也越多顆。

Sound sensor application: “Sound triggered LED”. This sound level to control the number of LEDs. The higher the sound level, the more LEDs are on.

材料(Materials)：

1. Arduino UNO R3 板子 x 1

2. 聲音感測器模組 Sound sensor x 1

3. LED 燈 x 4

4. 杜邦線公對公 male/male jumper wire x 8

5. 220歐姆電阻 220 ohm resistor x 4

6. 麵包板 Breadboard x 1

電路(Circuit)：

上圖是用Photentiometer表示聲音感測器模組。

Sound sensor signal pin is wired to Arduino UNO A0.

The LEDs’ anodes are wired to Arduino UNO pin 3, 5, 6, 9, respectively.

程式碼(The Code)：

示範影片(Demo Video)：

範例連結(Example Link)：

https://www.tinkercad.com/things/508wK2VaSjGx

Originally published at yunlinsong.blogspot.com on February 3, 2019.