display.ino

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

#define OLED_RESET 4
Adafruit_SSD1306 display(OLED_RESET);
uint16_t xval=0;
double senal=0;
int ypre=0;
void setup()   {                
  Serial.begin(9600);
  delay(500);
  // by default, we'll generate the high voltage from the 3.3v line internally! (neat!)
  display.begin(SSD1306_SWITCHCAPVCC, 0x3C);  // initialize with the I2C addr 0x3D (for the 128x64)
  // init done
  display.clearDisplay();
   }

void loop() {
  display.setTextSize(1);
  display.setCursor(5,0);
  display.setTextColor(BLACK, WHITE); 
  display.print("V1");
 for(xval = 0; xval <= 128; xval++) { 
  senal=analogRead(A0)/16;
    float yval =senal;
    int x =xval;
    int y =yval; 
    display.drawLine(x-1, ypre,x,y, WHITE);
    ypre=y;
    display.display();
    delay(1);
    if(xval==128){display.clearDisplay();
      
    }
   } 
  
}