int latchPin
= 5;
int clockPin
= 4;
int dataPin
= 2;
void setup
()
{
pinMode(latchPin
,OUTPUT
);
pinMode(clockPin
,OUTPUT
);
pinMode(dataPin
,OUTPUT
);
}
void loop()
{
for(int a
=0; a
<256; a
++)
{
digitalWrite(latchPin
,LOW
);
shiftOut(dataPin
,clockPin
,MSBFIRST
,a
);
digitalWrite(latchPin
,HIGH
);
delay(1000);
}
}
shiftout 原型
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