实验二：RGB彩灯实验
来自丢石头百科
目录
Arduino
实验现象
- RGB模块实现酷炫的灯光效果
实验原理
- 通过 R、G、B 三个引脚的PWM电压输入可以调节三种基色（红/蓝/绿）的强度从而实现全彩的混色效果
电路连接
参考程序
int red = 3; //select the pin for the red LED
int green = 5; // select the pin for the blue LED
int blue = 6; // select the pin for the green LED
int val;
void setup()
{
pinMode(red,OUTPUT);
pinMode(green,OUTPUT);
pinMode(blue,OUTPUT);
}
void loop()
{
for(val=255; val>0; val--)
{
analogWrite(red,val);
analogWrite(blue,128-val);
analogWrite(green,255-val);
delay(1);
}
for(val=0; val<255; val++)
{
analogWrite(red,val);
analogWrite(blue,128-val);
analogWrite(green,255-val);
delay(1);
}
}
