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 Forum index » DIY Hardware and Software
Conway's Game of Life
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PHOBoS



Joined: Jan 14, 2010
Posts: 4863
Location: Moon Base
Audio files: 650

PostPosted: Wed Jul 15, 2020 10:08 am    Post subject: Reply with quote  Mark this post and the followings unread

hmm, I don't see how an extra EPROM would be needed. You'd need a counter to control that EPROM, and if you have a counter
you can control the shiftregister directly with it. But maybe you have something entirely different in mind.

anyway,..
player 3 has entered the game




Also 1x12 pin female angled doesn't seem as standard as I was expecting. They do exist and apparently 1x11 pin does too
I just haven't found a seller yet that has them. 1x10 pin and some extra connectors for power would be nice because then
I could get 40 pin male parts and just divide those in 4 sections. Cost wise a 1x15 pin might be a better option though.
That also gives me some extra pins for other signals.

I also thought about double row headers but I have to design the PCBs in such a way that they can accommodate different
headers (male/female, angled/straight). Since they sit at a different distance from the edge of the board I need to make
multiple rows of holes on the edges and I think routing those will be much easier with a single row header.

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PHOBoS



Joined: Jan 14, 2010
Posts: 4863
Location: Moon Base
Audio files: 650

PostPosted: Fri Jul 17, 2020 11:41 am    Post subject: Reply with quote  Mark this post and the followings unread

It's starting to take shape. I need to clean it up but at least sofar everything is routed.


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Blue Hell
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Joined: Apr 03, 2004
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PostPosted: Fri Jul 17, 2020 12:06 pm    Post subject: Reply with quote  Mark this post and the followings unread

Hmm .. I wonder .. how ... where ... did those eight legged creatures creep in, what are they? not venomous I hope?
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Jan
also .. could someone please turn down the thermostat a bit.
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PHOBoS



Joined: Jan 14, 2010
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Location: Moon Base
Audio files: 650

PostPosted: Fri Jul 17, 2020 12:23 pm    Post subject: Reply with quote  Mark this post and the followings unread

Those eight legged creatures are 555's to create a toggle function for the buttons.
Pretty harmless but I did place them a bit on a diet.

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Blue Hell
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PostPosted: Fri Jul 17, 2020 12:37 pm    Post subject: Reply with quote  Mark this post and the followings unread

Ah, should just have followed the traces maybe as I did see the switches .. hmm .. hungry eh .. well so am I!

Pizza time Laughing

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also .. could someone please turn down the thermostat a bit.
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PHOBoS



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Location: Moon Base
Audio files: 650

PostPosted: Tue Aug 04, 2020 11:24 am    Post subject: Reply with quote  Mark this post and the followings unread

I got something in the mail today Cool

I've also received the LEDs which is giving me a slight problem. The green is a bit too dim for my liking
at least when driven directly from the 4070. The red is fine and even bright enough with a much lower current.
At the moment I use a 6K8 resistor for the red and 680 ohms for the green which somewhat works but the green
is pulling down the voltage more than I would like (which in turn reduces the current). There isn't a big difference
in forward voltage btw.

The best solution is probably to use some transistors which I tested on my breadboard and it works fine.
Of course I can't do that with these boards without cutting traces but there is another way which helps:
piggybacking 2 XOR chips pig so I could do that for now since these boards are mainly for testing the
concept since I don't even know if it will work. I did manage to change the design and add 4 transistors to it
so if it does work the next batch will have them.

I don't have all the componens yet (mainly need the connectors) but I will probably test something this weekend
or sooner so that if it works I can order the next batch of boards as soon as possible. If it doesn't work I have some
nice coasters.


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Blue Hell
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PostPosted: Tue Aug 04, 2020 12:21 pm    Post subject: Reply with quote  Mark this post and the followings unread

ah nice, the hexagon cube is cool (:-)
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also .. could someone please turn down the thermostat a bit.
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PHOBoS



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PostPosted: Tue Aug 04, 2020 12:53 pm    Post subject: Reply with quote  Mark this post and the followings unread

That's METATRON'S CUBE. Metatron being the angel of life (or sometimes death).
It has a bit more lines than usual as I based it on this video.

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Blue Hell
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PostPosted: Tue Aug 04, 2020 1:30 pm    Post subject: Reply with quote  Mark this post and the followings unread

Oh, I had no idea Laughing but it seems appropriate for the thing you are making Cool

Nice demo in that video to derive projections of the platonic solids .. the last one with the pentagons seems a bit arbitrary, although it is related to that thing with 12 surfaces .. I always forget the names ... can only count to about deca in greek Confused

Anyways .. back to my own poly thingies .. a patch with five voices .. cross connecting the voices with my new poly shifter .. which takes the sound from one voice and tele-beams it to another one .. that is very platonic too Rolling Eyes

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also .. could someone please turn down the thermostat a bit.
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PHOBoS



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Audio files: 650

PostPosted: Tue Aug 04, 2020 3:18 pm    Post subject: Reply with quote  Mark this post and the followings unread

polyhedron, polyphonic, it's all greek to me. Laughing

dodecahedron is the one with 12 sides. 'do' reminds me of duo or double (probably all related) so you get 2 and 10 (deca).
after that it's just trideca, tetradeca, pentadeca etc,.
now that I think about 11 and 12 seem to be somewhat different in many languages (also related of course).
well, actually I don't even know that many languages. Maybe we should switch to a duodecimal based system
(had to look that up and see there it is; duo Very Happy) useful with music and time and rotations.

oh and here's a nice 3D version of Metatron's cube.




edit: oh dear, here I go tumbling DOwn a rabbit hole again albino

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Grumble



Joined: Nov 23, 2015
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PostPosted: Yesterday, at 6:09 am    Post subject: Reply with quote  Mark this post and the followings unread

Quote:
The green is a bit too dim for my liking

Maybe you are partially colorblind? πŸ™ˆ

Quote: The different anomalous conditions are protanomaly, which is a reduced sensitivity to red light, deuteranomaly which is a reduced sensitivity to green light and is the most common form of colour blindness and tritanomaly which is a reduced sensitivity to blue light and is extremely rare.

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PHOBoS



Joined: Jan 14, 2010
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Audio files: 650

PostPosted: Yesterday, at 7:13 am    Post subject: Reply with quote  Mark this post and the followings unread

I've never had any problems with color blindness tests but judge for yourself.

supply voltage: 5V
resistors: 5.1K
forward voltage RED LED: 1.77V
forward voltage GREEN LED: 1.83V

a camera isn't the best tool for this of course and they both show up a bit brighter on the photo.


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Grumble



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PostPosted: Yesterday, at 8:36 am    Post subject: Reply with quote  Mark this post and the followings unread

They look equal brightness to me πŸ˜‚πŸ˜‚πŸ˜‚
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PostPosted: Yesterday, at 8:53 am    Post subject: Reply with quote  Mark this post and the followings unread

Grumble wrote:
They look equal brightness to me πŸ˜‚πŸ˜‚πŸ˜‚


Maybe you have a heightened sensitivity to red light?

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also .. could someone please turn down the thermostat a bit.
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PostPosted: Today, at 12:41 am    Post subject: Reply with quote  Mark this post and the followings unread

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PostPosted: Today, at 6:45 am    Post subject: Reply with quote  Mark this post and the followings unread

clown


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PHOBoS



Joined: Jan 14, 2010
Posts: 4863
Location: Moon Base
Audio files: 650

PostPosted: Today, at 11:46 am    Post subject: Reply with quote  Mark this post and the followings unread

I am too tired and it's too warm to really test it right now, but it didn't go up in smoke
and I can toggle the LEDs on/off so that's something. Cool


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