distance reader with display

adieng1 said:

I am building a project that using and 555 time and ultrasonic receiver to read distance between point A and B. The distance will equate to a change in voltage. now what i want to is to take the distance(cm) and display it using 3 seven segment displays. For example display 128, 192.... I got all the circuit figure out up to the output of the A/D 804 1000 0000, 1100 0000...

I have done some research on the internet i seem to need 2 eprom 27c64, 3 bcd decoders and 3 seven segment displays. Can electronic wizz help me tie all these together and also with the eprom programming also.

thanks.

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