使用C语言操作树莓派GPIO的详细步骤

cd /tmp
wget https://project-downloads.drogon.net/wiringpi-latest.deb
sudo dpkg -i wiringpi-latest.deb

#include <wiringPi.h>
#include <softPwm.h>
#include <stdio.h>
 
#define uchar unsigned char
#define uint unsigned int
#define LedPinRed 0
#define LedPinGreen 1
 
void ledInit()
{
    softPwmCreate(LedPinRed,0,100);
    softPwmCreate(LedPinGreen,10,100);
}
void ledColorSet(uchar r_val, uchar g_val)
{
    softPwmWrite(LedPinRed,r_val);
    softPwmWrite(LedPinGreen,g_val);    
}
 
int main()
{
    int i = 0;
    if(wiringPiSetup() == 1)
    {
        printf("Setup wiringPi failed!!");
        return 1;
    }
    ledInit();
    while(1)
    {
        ledColorSet(0xff,0x00);
        delay(500);
        ledColorSet(0x00,0xff);
        delay(500);
    }
    return 0;
}

gcc testLED.c -o led -lwiringPi -lpthread