#include <wiringPi.h>
#include <softPwm.h>

#define LedPin 22

int main(void){
	if (wiringPiSetupGpio() == -1)
		return 1;

	pinMode(LedPin, OUTPUT);
	softPwmCreate(LedPin, 0, 128);
	int i;
	while(1){
		for(i=0;i<129;i+=8){
			softPwmWrite(LedPin, i);
			delay(100);
		}
		for(i=128;i>-1;i-=8){
			softPwmWrite(LedPin,i); 
			delay(100);
		}
	}
	return 0;
}