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Author Topic: flip flop it or 4051 it?  (Read 2809 times)
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iteadstudio.com
10 boards up to 100mm x 100cm, $24.90 + shipping (~$5)
I can't tell if you used a ground plane on both sides of the board, will make routing easier.
Same for a schematic for review - can follow the fritzing picture to a point, then can't tell what it's doing.
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wow, that site is a great find. I looked forever last night and couldn't find anything for under 100 bucks. I've triple checked my connections and added 3 caps for where i hook in to the +5v. added the 100 and 10k resistors. added a few headers for the audio and button input. added those 100 nF caps at the ICs. ummm sorry just thinking on screen. anything else? Im using a power supply my dad got from Seattle City Light's junk warehouse, i have it hooked up to the +5, and it says it can provide up to 12 amps, which i think is a bit overkill, but hey it works. Do you think this is acceptable? (sorry for all the questions, im on a never ending quest for knowledge) So last minute checks? all good? thanks.
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Nothing more to add until you create Gerbers.
Use nice wide traces for 5V power lines.
Use ground planes on both sides of the board.
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What is a ground plane? i extended the 5v traces that go to all the chips to 48 mils, but i don't know what a ground plane is...
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Cover both sides of the board with a polygon (Draw:Polygon) and Name them GND.
This will cover everything that is not a signal with a ground plane.
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Fritzing didnt have that, but it did do this thing that it called 'ground fill', is this the same?


* Shifter_pcb With Ground Fill.jpg (84.14 KB, 1630x842 - viewed 10 times.)
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Can't tell picture is not high enough resolution. You also don't show the other side of the board.
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yeah sorry, fritzing displays everything on one layer, the yellow traces are the top and the orange are the bottom. I cant seem to get a nice high res pic, but this thing that i did, the ground fill, put a huge sheet of copper over the top and bottom that connect everything that needs to be to ground. it did this for both sides. this what your talking about?
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Yes.
I can't see the traces that wrap the outputs back to the next input to make a shift register.
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are you talking about the pin 19 to 3, 18 to 4, and so on? cause they are there, just really hard to see because i have both layers showing and all of those connections are on the back, so the top obscures them.
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