/***
by Fajar Himawan
https://ayojurnalku.blogspot.com  
***/


#include <Stepper.h>
#include <Wire.h>
#include <Adafruit_GFX.h>
#include <Adafruit_SSD1306.h>

#define SCREEN_WIDTH 128 // OLED display width, in pixels
#define SCREEN_HEIGHT 64 // OLED display height, in pixels

// Declaration for an SSD1306 display connected to I2C (SDA, SCL pins)
Adafruit_SSD1306 display(SCREEN_WIDTH, SCREEN_HEIGHT, &Wire, -1);


int potpin = 0;  // analog pin used to connect the potentiometer
int val;    // variable to read the value from the analog pin
int SwitchPIN = 7;

const int stepsPerRevolution = 200;  // change this to fit the number of steps per revolution
// for your motor
Stepper myStepper(stepsPerRevolution, 8, 9, 10, 11);





void setup() {
  Serial.begin(115200);
   myStepper.setSpeed(1);


  pinMode( SwitchPIN, INPUT);

  if(!display.begin(SSD1306_SWITCHCAPVCC, 0x3C)) {
    Serial.println(F("SSD1306 allocation failed"));
    for(;;);
  }
  delay(500);
  display.clearDisplay();
  display.setTextColor(WHITE);
}

void loop() {
  

  val = analogRead(potpin);            // reads the value of the potentiometer (value between 0 and 1023)
  val = map(val, 0, 1023, -10, 99);     // scale it to use it with the servo (value between 0 and 180)
  //myStepper.step(val);
                    // sets the servo position according to the scaled value
  delay(15);  
  // clear display
  display.clearDisplay();
  // display temperature
  display.setTextSize(1);
  display.setCursor(0,0);
  display.print("Suhu: ");
  //display.setTextSize(2);
  display.setCursor(0,10);
  display.print(val);
  display.print(" ");
  display.setTextSize(1);
  //display.cp437(true);
  //display.write(167);
  //display.setTextSize(2);
  //display.print("C");
  
  // display humidity
  display.setTextSize(1);
  display.setCursor(0, 35);
  display.print("Kelembaban: ");
  //display.setTextSize(2);
  //display.setCursor(0, 45);
  //display.print(h);
  //display.print(" %"); 
  
  display.display(); 
}