david_mora
New Member
hi people i am buildng a simple project: a simple LDC and matrix keypad controlled by an 16f877. i already had made the program, i can print what i press in the keypad, but i don't how to delete a letter using the "clear" button. the hardware is as follows:
1 / 2 / 3 / UP
4 / 5 / 6 / DOWN
7 / 8 / 9 / 2nd
Help/ 0 / clear / enter
well the idea is that when i press the clear button, the cursor return one space, but i have no idea about doing that. I think that i can do that with the control lines of the LCD (R, RS,RW) but i need help, how can i use this lines to return one space???? help is needed please!!!!!!
1 / 2 / 3 / UP
4 / 5 / 6 / DOWN
7 / 8 / 9 / 2nd
Help/ 0 / clear / enter
well the idea is that when i press the clear button, the cursor return one space, but i have no idea about doing that. I think that i can do that with the control lines of the LCD (R, RS,RW) but i need help, how can i use this lines to return one space???? help is needed please!!!!!!