Comments on: Logic Units Explained… Umm, Better

By: glu2305

glu2305 — Sat, 18 Feb 2012 01:07:08 +0000

i came up with the same concept months ago when steven (scjoiner) first introduced the confusing Display Pt. 4: Stephen’s Binary to 7 Segment Decoder Tutorial i put a video response to his tutorial with a similar design got a schematic file in the description

By: roboticaust

roboticaust — Sat, 18 Feb 2012 01:06:00 +0000

@Cool12309FromRoblox
Since I’m working in bcd which is a little bit of a different application, I just need 0 to 9. The red portion near the input turns off the 2 and 4 line when they are set to the default 0 positions. That way none of their enabler torches are on. It means that only the 1s digit is affecting the design. So the decode lines in the 1s digit are actually displaying 8 and 9 in its 2 states. Second portion of red is a way to detect invalid data.

By: kylez963

kylez963 — Sat, 18 Feb 2012 01:05:52 +0000

@roboticaust O.O Awesome thanks roboticaust! I’m totally trying this out!

By: roboticaust

roboticaust — Sat, 18 Feb 2012 00:58:54 +0000

@yayimahuman
I planned on it as I got further along with the project

By: Generikb

Generikb — Sat, 18 Feb 2012 00:58:05 +0000

@roboticaust LOL…that reminds me I *still* haven’t made my chicklet farm!!!

By: Shadekiller666

Shadekiller666 — Sat, 18 Feb 2012 00:56:09 +0000

@roboticaust ok so if the purple decoder lines are 0-7, where do 8 and 9 come from?

By: Ismaw34

Ismaw34 — Sat, 18 Feb 2012 00:54:35 +0000

Ti title should be: Binary decoder to 8 segmet display for Dummies XD

By: KapitanWalnut

KapitanWalnut — Sat, 18 Feb 2012 00:54:02 +0000

I love this encoder/decoder setup. I think this design can be used to make implimenting K-maps a snap!

By: roboticaust

roboticaust — Sat, 18 Feb 2012 00:53:34 +0000

@Lolocaust41
The purple is actually a decoder line. The wire on top of the purple is your output from the logic unit. But yes, such things do exist. A lot of people fumble around with torch placement until they get it working without ever understanding the logic behind why it works. So their outputs are out of order typically and there’s little to no pattern or reason behind any of it. I merely wanted to take the guessing out of it and make it so others could easily make their own.

By: 8bitbytes

8bitbytes — Sat, 18 Feb 2012 00:49:47 +0000

@Lolocaust41 What? No. The properties that people like of exponents is that x^n*x^m=x^(n+m) and x^-n=1/x^n. Exponents are defined by these properties. So therefore x^-n*x^n=x^n/x^n=1 where is not 0. So only 0^0 is undefined.