from machine import Pin, SoftI2C 
from ssd1306 import SSD1306_I2C
from time import sleep 


i2c = SoftI2C(scl=Pin(22), sda=Pin(21), freq=100000) 
# ESP8266 Pin assignment 
#i2c = SoftI2C(scl=Pin(5), sda=Pin(4), freq=100000) 

I2C_ADDR = 0x3c
oled_width = 128 
oled_height = 64 
oled = SSD1306_I2C(oled_width, oled_height, i2c, I2C_ADDR) 

oled.fill(1)
# oled.invert(True)
oled.pixel(21,24,0)
oled.text('Hello, World 1!', 0, 0, 0) 
oled.text("Embedded Systems ",0, 15, 0) 
oled.text("Micro Python", 23, 27,0) 
oled.contrast(0)
oled.show()