삼성 아틱 (ARTIK) 710S와 조도센서 ADC 아두이노 IDE 예제 / C언어

#include <DebugSerial.h>

int sensorpin = 1;

void setup()

{

   DebugSerial.begin(115200); 

}

void loop()

{

   DebugSerial.println(analogRead(sensorpin));

   delay(1000);

}

#include <stdio.h>

#include <stdlib.h>

#include <stdbool.h>

#define HIGH            1

#define LOW 0

#define ANALOG_PIN          0 // A0

#define PWM_PIN 0

#define PERIOD 1000000

bool pwmPin(int pin, int period, int duty_cycle, int enable){

    FILE * fd;

    char fName[128];

    if(( fd = fopen("/sys/class/pwm/pwmchip0/export", "w")) == NULL) {

        printf("Error: unable to export pin\n");

        return false;

    }

    fprintf(fd, "%d\n", pin);

    fclose(fd);

    sprintf(fName, "/sys/class/pwm/pwmchip0/pwm%d/period", pin);

    if((fd = fopen(fName, "w")) == NULL) {

        printf("Error: can't open pin period\n");

        return false;

    }

    fprintf(fd, "%d\n", period);

    fclose(fd);

    sprintf(fName, "/sys/class/pwm/pwmchip0/pwm%d/duty_cycle", pin);

    if((fd = fopen(fName, "w")) == NULL) {

        printf("Error: can't open pin duty_cycle\n");

        return false;

    }

    fprintf(fd, "%d\n", duty_cycle);

    fclose(fd);