from machine import Pin, I2C
import ssd1306
import time

# ESP32 Pin assignment 
i2c = I2C(0, scl=Pin(22), sda=Pin(21))

oled_width = 128
oled_height = 64
oled = ssd1306.SSD1306_I2C(oled_width, oled_height, i2c)

oled.text('Hello, Wokwi!', 10, 10)      
oled.show()
redbtn=Pin(15,Pin.IN)
greenbtn=Pin(2,Pin.IN)
redled=Pin(4,Pin.OUT)

while True:
    if(redbtn.value()==0)
        redpin.value(0)
    else:
        redled.value(1)
    time.sleep(0.2)