22 lines
368 B
C
22 lines
368 B
C
#include <stdio.h>
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#include <wiringPi.h>
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#include <pcf8574.h>
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#define EXTEND_BASE 64
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#define LED EXTEND_BASE + 4
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int main (void)
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{
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wiringPiSetup();
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pcf8574Setup(EXTEND_BASE,0x20);
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pinMode(LED,OUTPUT);
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while (1)
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{
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digitalWrite(LED,LOW); //LED ON
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delay(500);
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digitalWrite(LED,HIGH); //LED OFF
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delay(500);
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}
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return 0;
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}
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