若您覺得文章寫得不錯,請點選文章上的廣告,來支持小編,謝謝。If you like this post, please click the ads on the blog or buy me a coffee. Thank you very much. 此單元要介紹如何設計控制一顆LED亮度的電路。 This tutorial will design a circuit that can change a LED lightness. 硬體材料(Materials): 1. LED燈 x 1 2. B10K variable resistor可變電阻 x 1 3. 160孔麵包板 small breadboard x 1 4. 電池 battery(本例用12V電池 12V in this tutorial) 5. 單節電池盒 battery holder (本例用12V電池盒 12V battery holder in this tutorial) 硬體電路(Circuit): 完成圖(The finished circuit): 示範影片(Demo video): 延伸練習(Practice): 使用開關控制LED燈的亮滅,無亮度調整 (Use a button to turn on/off a LED)。 多幾顆不一樣顏色的LED燈 (Try multiple LEDs with different colors)。 換成三色(RGB)LED燈 ( Change to a RGB LED )。 用一些東西將LED燈蓋住,例如塑膠袋、棉花、壓克力、彩色塑膠片等,看看會有什麼效果。 (Cover the LED with different objects. For example, plastic bags, cottons, acrylic box, etc.)