#include <SPI.h>
#include <Wire.h>
#include <Adafruit_GFX.h>
#include <Adafruit_SH110X.h>
#define i2c_Address 0x3c 
#define OLED_RESET -1 
Adafruit_SH1106G display = Adafruit_SH1106G(128, 64, &Wire, OLED_RESET);

void setup(){
Serial.begin(115200);
display.begin(i2c_Address, true);
display.clearDisplay();
display.display();
}

void loop(){
    int v= analogRead(0);
    if(v>765)  v=765;
    //Serial.println(map(v, 0, 765, 0, 120));
    //Serial.println(analogRead(A0));
    display.fillRoundRect(4, 30, map(v, 0, 765, 0, 120), 6 ,  2, 1);
    display.display();
    if(analogRead(0)>765)  display.fillRoundRect(4, 30, map(v, 0, 765, 0, 120), 6 ,  2, 0);
    display.display();
}