Aaron's 7 segment LED ADC

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Uploaded by on Apr 29, 2007

My buddy Aaron explains his mad skills with circuits.

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Howto & Style

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  • Ignore the circuit on the lower left of the breadboard... that was under construction for an unrelated lab experiment!

  • ivanatora, sorry for such a slow response.

    The "thermometer code" (the output of the bank of comparators, which I think is what you are referring to as "parallel binary") is converted to binary using the 74HC148. The binary/BCD is converted to 7-segment LED display code using the CD4543.

  • I think everyone's attention is on the led

  • Oh wow! i just love all this nerd-speak! Wish I understood it too.

  • Hello,

    How do you convert parallel binary code to BCD? What IC are you using?

    I assume you are using something like 7447 for driving the 7-segmend indication?

    Greetings

  • Its nice to see you guys get excited about things like that. I am an EECS student at Cal, we designed and implemented a wireless phone on a FPGA, a daunting project...

  • nice project. if your up for another one an fpga stopwatch was pretty fun... eeprojects. com/fpga_stopwatch.html

  • NERD!! (Guffaw here)

    Neat even though I don't understand it all.

  • -At 1Hz.

  • The input signal I used to produce the output display you see was a 1V peak to peak ramp function with +0.5V offset.

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