Seven Segment Display 0-9 w/bstring

[chapium]

I made a little SSD in facotorio It can show numbers 0-9 based on input from the network. Just replace the constant combinator with your input and adjust the / combinator to index your data to numbers 0-9.

I'm sure further optimization may be possible, but in its current state it simply works.

Code: Select all

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[@xi@g@me]

Nice idea

I didn't get your blueprint, but seeing the screenshot I guess you used pure logic to determine which segment to light (each block of deciders send a given signal if the number is equal to certain values).
There is another way of doing so, which may not be more optimized with a single digit, but may be with two or more.

Constant combinators can send different signals alone. So for example you can create a constant combinator for each digit from 0 to 9, outputing signals that light the LEDs you want.
Then you create 10 decider combinators linked to your input, each of them outputting 1 unit of a given signal if the input equals the given number (I mean if "input" = 0, if "input" = 1, etc.)

And at the end, you can put multipliers combinators to act as an "and" logic door (multiply each by the decider combinatour output signal).

With only digit it would cost you 30 combinators instead of 27 in your plan, but for each new digit it would cost you only 20 combinators, as you don't need to replicate the constant ones
The other advantage is that you can control more complex displays than seven segments ones.

For example, the one I described here looks like a seven-segment displays, but it actually works with 13 different signals ! Since each corner needs another type of signal than the segments. And with the above mentionned method, you just need to output more signals from the constant combinators, without altering the rest of the circuit

[XKnight]

I think my duty is to share this link with you:
https://forums.factorio.com/forum/vie ... =8&t=14150.
Because it looks like you did not see it before.

[chapium]

I'll need to take a look a that, he really reduced the number of combinators. The design of mine is 7 groups each defining the range of choices using <, >, =, and and or gates.

[@xi@g@me]

Yes, his design is really clever (although the manner it is presented in this topic does not really please me, whatever)

So I was right in my guess of how you used the combinators, this is the first thing I wanted to do too, but I was stuck due to the fact I was troubled by the fact the signals follow every cable, even when it goes back to an output. At the moment I understood I could use several signals, I also found it would be more clever to use constant combinators to put every signal I needed for each digit (this is what XKnight does too, if I understood well what he said in the topic).

Now that I found some interesting things in the manner of how signals work, I think I would be able to have a better result too. If I get something better, I'll tell you how I did that.