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Notes Everywhere
這邊堆了一些研究過, 會用到的東西的list, 就像一本筆記本一樣.
Thursday, January 18, 2007
LED燈接法
LED要串一個電阻
假設LED的規格是x V, 工作店最大事 y mA
則串接的電阻的電阻值為 (電源電壓 - x)/z, 其中z <= y
一般來說z=0.01
因此紅色1.8V的LED要串大概330歐姆的電阻
電阻的串法
LED長腳接五伏電壓
短腳接電阻
電阻的另一個腳接地
圖晚點補
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