Binary counting with 7 segment display. Problem

313

04:00:18

So I previously build a binary counting circuit just with LEDs and I was only using t flip-flops. But now it won't find a solution if I do it the same way. 
In fact I did add the diodes to display the numbers 0 and 1 correctly but why would this lead to this error?

Now I used one NOT gate so the circuit would start. However, it doesn't work correctly (the three other displays won't change so I guess the flip flop doesn't get triggered.

Anyone got a solution to this?

Edit: finished and working

published 5 years ago

wyoelk

5 years ago

I've been blocked out for a bit, so hope this makes some sense. It looks like a timing issue, maybe with the simulator. http://everycircuit.com/circuit/5569998398160896

slm67

5 years ago

1. the digital outputs are not intended for such a load. 2. you have changed the logic signal level to 7 volts and the response time to 10 ms. Works with standard digital levels. Connect the digital outputs to the LED via a resistor.

maxmax_66

5 years ago

Try it this way. http://everycircuit.com/circuit/6636265502670848

Smates133

5 years ago

Since your solutions do work, I still want to make the display the same brightness. I mean technically it does work but in my opinion id also needs to be the same brightness everytime. However, thank you for your responses :)

wyoelk

5 years ago

If understood correctly, you don't want a C with four bright segments combined with two dim segments. You want to display an actual zero lighting all six segments and then a one with just two segments? Am I following correctly?

maxmax_66

5 years ago

In that case, you might want to use the binary to 7 segment decoder.

Smates133

5 years ago

Yes @wyoelk , you understood correctly

Smates133

5 years ago

@maxmax_66 in that case I'd need to read the sheets for the decoder bc I've never used it before.

maxmax_66

5 years ago

http://everycircuit.com/circuit/4969298769215488

wyoelk

5 years ago

Great job maxmac_66!! I was trying logic gates for kicks but y'all did dandy fine!!

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