from machine import I2C, Pin, ADC
from esp8266_i2c_lcd import esp8266_lcd
from time import sleep

adc32 = ADC(Pin(32))
adc32.atten(ADC.ATTN_11DB)   
adc32.width(ADC.WIDTH_10BIT) 

i2c = I2C(0)    # Using hardware I2C channel 0
lcd = esp8266_lcd.I2cLcd(i2c, esp8266_lcd.DEFAULT_I2C_ADDR, 2, 16)
lcd.clear()

counter = 0

while True:
  val = adc32.read()
    #print(val)
    volts = (3.3* val)/1023
    #print(volts)
    if val >= 500:
        val = 500


    lcd.move_to(0,0)

    lcd.putstr("ADCvalue: %s" %(val))
    lcd.move_to(0,1)
    lcd.putstr("Voltage: %0.2f" %(volts))
    sleep(1)