Learning Single Board Computers

Hello people of the element 14 community! My name is Nehemiah and I am 14 years old. Over the past two years I have been learning electronics such as arduino and a little bit of raspberry pi. I have made a few projects with my arduino (one being my science fair project) and want to do more advanced things. I watch this video by Ben Heck (https://www.youtube.com/watch?v=ZXllm5JWWAs&list=UUhturLXwYxwTOf_5krs0qvA) and wanted to do something similar to that. Could anyone give me a link to the explanation of single board computers and projects like that? That would be so helpful!

Thanks in advance,

Nehemiah

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dougw over 11 years ago +1

If you want to try an ambitious retro build, the AIM 65 was a cool single board computer: The schematics are posted here: Rockwell AIM-65 and 6502 related devices Index of /aim65

Former Member over 11 years ago

Hey, have a look at Ben's latest project. He's building an Apple 1 over 3 episodes.
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Former Member over 11 years ago in reply to Former Member

Do you know if he has a schematic for what he is building or is he just looking at schematics online?

Thanks,
Nehemiah
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Former Member over 11 years ago in reply to Former Member

I also am getting these parts for Christmas from my parents. I may be able to make two SBC's with two different processors!

Thanks!
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Former Member over 11 years ago in reply to Former Member

I couldn't see any additional material, BUT the final episode has yet to show and I'm new to the site. So maybe it's hiding somewhere here or it has yet to be posted.
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Problemchild over 11 years ago in reply to Former Member

Looking but open to suggestions
http://www.6502.org/homebuilt/
Is suggested at the moment ....Others on page 1
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Problemchild over 11 years ago in reply to Former Member

27xxxx are Original EPROMs
28xxxx are EEPROMS and do not need to be UV erased
29xxx are FLASH
All of these chips have their own programming sequence which varies from manufacturer so ideally you need a programmer that supports these or have a lot of time to debug a kit or someone else's circuit
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Problemchild over 11 years ago in reply to Former Member

For Wiring use the Kynar for all non-power connections and standard multicore wire for the power has it has more copper and will supply the current more effectively.

Kynar has the advantage that you can solder through the insulation which acts as a flux so you can go from point a to b to c with one run of cable making buses easier to run.
Handy tip have a different colour of Kynar for each bus type so say red for data yellow for address purple for control etc.

It looks good and makes it easier to track and debug your circuit
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Problemchild over 11 years ago in reply to D_Hersey

I like the CMOS idea Don. Assuming you can get the parts it allows for low voltage operation, low currents for when your power layout is marginal and of course low frequencies for when those cables interfere too much ..keep lowering the frequency until it works .

Note that the designs he's looked at already use Static memory!
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Problemchild over 11 years ago in reply to Former Member

I think he alludes to some in the show ... The CPU board he has done so far is stupid simple anyway!
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Problemchild over 11 years ago in reply to D_Hersey

I think the wirewrapping idea is OK if you have already done it before otherwise it's a pain and everything just costs more.

I just solder through he insulation on the kynar works fine boards still work after 30 years ...good enough for Johnny
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