I'm currently building an embedded application that would help children to learn how to count, do simple addition, and subtraction equations. The missing number game would display numbers 1-5. The timer would leave the numbers on the display up to 60 seconds and then it would ask you to type in the missing number. Example: 1, 2 , 3 , , 5. 123 go is another counting game that is really geared towards ages 1-3, because the user is asked to touch the number on the keypad that matches the number on the display. The equation game would ask you a simple addition or subtraction question. Example: 1+1= . If the user typed in 6, the sounder would buzz. If the answer was 2, the sounder would ding. The user has 60 seconds to answer, when it gets to 10 seconds it will begin to beep and then buzz if the question has not been answered.

I need hep figuring out how to draw out the timing diagrams for this system.

The tools used would be a keypad, Kanda STK300 board running on a ATMEGA 1281 chip, and a buzzer. Any help would be great!

DISPLAY 123 GOr Ages 1-3 Msang Nubr Aga 3.5- DISPLAY DISPLAY Find the misaing umber shown on nput Try Again input Try Aysin o" 1,2.3,D, Comec! DISPLAY Try Agaun Try Agan Comect DISPLAY 123 GOr Ages 1-3 Msang Nubr Aga 3.5- DISPLAY DISPLAY Find the misaing umber shown on nput Try Again input Try Aysin o" 1,2.3,D, Comec! DISPLAY Try Agaun Try Agan Comect