greetings!!!
well let me tell you about my problem, i'm taking a laboratory class, called digital systems...and i'm required to design a circuit for my final project, and well i need help, it has to be a reflex tester circuit, it should test the reflexes of a person, by meassuring the time between a led diode turning on and the pressing of a push-button, and also the pressing of 2 push buttons, and it should show the time, in 2 BCD displays...
well i don't know if my english is good enough but maybe someone can give me a hand, i'm pretty certain i should use a 555 IC for timing but not sure as to what else to do...
cheers