print("Hello, ESP32!")


import machine 
from machine import Pin, SoftI2C 
from lcd_api import LcdApi 
from i2c_lcd import I2cLcd 
from ssd1306 import SSD1306_I2C 
from hcsr04 import HCSR04
from time import sleep

i2c = SoftI2C(scl=Pin(22), sda=Pin(21), freq=10000) 				#initializing the I2C method for ESP32 
#i2c = I2C(scl=Pin(5), sda=Pin(4), freq=10000) 						#initializing the I2C method for ESP8266 


I2C_ADDR = 0x27
totalRows = 4 
totalColumns = 20
lcd = I2cLcd(i2c, I2C_ADDR, totalRows, totalColumns)

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

sensor = HCSR04(trigger_pin=5, echo_pin= 18, echo_timeout_us = 100000)


# lcd.move_to(0,0)
# lcd.putstr("ESP with uPython")

# oled.text('ECE 283', 1, 1,1)  
# oled.show()

while True:
    distance = sensor.distance_cm()
    print("distance: ", distance,"cm")
    lcd.move_to(0,0)
    lcd.putstr("distance:")
    lcd.putstr(str(distance))

    oled.text("distance:", 0, 0,1)  
    oled.text(str(int(distance)), 0, 10,1)
    oled.show()

    sleep(1)