Matrix - LED/zh
From FriendlyELEC WiKi
Revision as of 06:33, 12 August 2015 by Yonganch (Talk | contribs) (Undo revision 363 by Yonganch (talk))
1 介绍
File:Led.jpg
LED
一个直径为5mm的LED，3-Pin 2.54mm排针，V接电源，G接地，S信号通过一个三极管放大控制LED的导通或关闭。您可以向S输出静态的高低电平信号，也可以输出变化的PWM信号，信号电平可以是3.3V或5V。当您向S输出高电平时LED以最大亮度发光，低电平就完全熄灭，可变占空比的PWM信号可以调节发光的亮度。我们提供红、绿、蓝三种颜色的配件供您购买。
2 特性
- GPIO或PWM控制，3.3/5V电平，亮度通过PWM可调
- 体积小巧， 带固定孔，方便嵌入到外壳
- 2.54mm排针接口
