from utime import sleep
import keypad as k 
import lcdi2c as lcd
password="123456"
num=""  #declare string put key in password
lcd.cmd_wrt(0xc2)
lcd.str_wrt("insert pass   ")
while 1:
    value=k.getkey()
    if value!=0:
        print("key is:",value)
           
        if value=="*":
            num=""            
            lcd.cmd_wrt(0x01)
            lcd.cmd_wrt(0xc2)
            lcd.str_wrt("insert pass ")
        else:
            num+=value            
            print(num)
            lcd.cmd_wrt(0x85)
            #lcd.str_wrt(num)
            for i in num:
                lcd.str_wrt('*')
        #if value=="#":
        if len(num)==6:
            lcd.cmd_wrt(0xc2)
            if num==password:                
                lcd.str_wrt("pass ok     ")
            else:                
                lcd.str_wrt("pass wrong  ")
            num=""         
    sleep(0.3)