from lcdi2c import*
from keypad import*
from utime import sleep

lcd_start()
count=0

while(1):
    a=keyread()
    if(a!=0):
        if(a=='C'):
            cmd_wrt(0x01)
            count=0  

        elif(a=='A'):
            cmd_wrt(0x80+4)
            string_write("embedded")

        elif(a=='B'):
            cmd_wrt(0x80+4)
            string_write("subject ")
        else:
            cmd_wrt(0xc0+7+count)
            string_write(a)
            count=0