Aaron's 7 segment LED ADC

[d3u1d4e]

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

[myx1997]

I think everyone's attention is on the led

[andy35711]

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

[ivanatora]

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

[d3u1d4e]

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.

[mehdiAbderezai]

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...

[eeprojects]

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

[pelog21]

NERD!! (Guffaw here)

Neat even though I don't understand it all.

[d3u1d4e]

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

[d3u1d4e]

-At 1Hz.