from utime import sleep
import keypad as k 
import lcdi2c as lcd
num=""  #declare string
while 1:
    value=k.getkey()
    if value!=0:
        print("key is:",value)
        if value=='#':
            lcd.cmd_wrt(0x80+3)
            lcd.str_wrt("welcome")
        elif value=='*':
            lcd.cmd_wrt(0x01)
            num=""
        else:
            lcd.cmd_wrt(0xc2)
            num+=value
            lcd.str_wrt(num)

    sleep(0.3)