import lcdi2c as lcd
from utime import sleep
from machine import ADC,Pin
pot=ADC(Pin(26))

while 1:
    adc_val=pot.read_u16()
    adc_volt=adc_val*3.300/65535
    lcd.cmdwrite(0x82)    
    lcd.wordwrite('adc:'+str(adc_val))
    lcd.cmdwrite(0xc2)    
    lcd.wordwrite('adc_V:'+str(adc_volt))
    sleep(0.5)