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7-Segment LED Counter (binary and base 10) 2010-07-05

Here is something that I was able to build, it basically takes the pulse from a 555 timer and goes through a 7490 divide by 10 into a 7448 and finally into a LN514rk Common Cathode LED-- if you are going to use a common anode LED just replace the 7448 with a 7447

Materials Needed

  • 5 V-Source
    555-Integrated Circuit
    7490-Integrated Circuit
    7448-Integrated Circuit
    7-Segment Display (the one I used was LN514RK)

Simply connect it as it is in the diagram
Tom McCurdy
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