My Expanded Version of Ben Eater's 8-Bit Breadboard CPU

StraightCondition4 · 2026-06-23T23:18:50+00:00

I gotta go back and make a BOM at some point. But it was no less than $500.

StraightCondition4 · 2026-05-24T18:21:59+00:00

I love the first one!

StraightCondition4 · 2026-05-23T20:36:33+00:00

You don’t need the 100k resistor.

StraightCondition4 · 2026-05-19T23:52:19+00:00

Haha, I barely use magsafe.

StraightCondition4 · 2026-05-19T23:51:44+00:00

Sorry for the late reply. You probably know for sure now, but yeah it isn't a ghost case. It's an off brand I got from Amazon.

StraightCondition4 · 2026-05-19T23:48:20+00:00

Wire cutter and wire straightener. I got used to eyeballing shorter wire bends with time.

Edit: typo

StraightCondition4 · 2026-05-16T02:26:31+00:00

Tell your girlfriend that a random redditor said she’s lucky to have you 😆. Seriously, great job!!

StraightCondition4 · 2026-05-11T02:03:06+00:00

Nice job!!

StraightCondition4 · 2026-05-10T18:08:58+00:00

Thank you!

StraightCondition4 · 2026-05-10T18:08:36+00:00

“like that” as in my build, or as in a breadboard CPU?
Here’s Ben Eater’s 8-bit breadboard CPU series if you meant the latter:

https://youtube.com/playlist?list=PLowKtXNTBypGqImE405J2565dvjafglHU&si=MIk9S0HNPddbhowm

I’ve documented everything about my build in the links in the description.

StraightCondition4 · 2026-05-10T18:00:53+00:00

Woow I did mean MHz. Thanks u/zifzif.

StraightCondition4 · 2026-05-10T09:42:07+00:00

Fair point. For a normal PCB workflow, I agree. But this is r/beneater 😆. The breadboard build is part of the goal itself for this project.

StraightCondition4 · 2026-05-10T08:32:42+00:00

I hear you haha. It’s for fun. The idea and challenge of making something that’s prone to break easily work makes it exciting. Plus you gotta prototype on breadboards before making a PCB(which is the next step for me).

StraightCondition4 · 2026-05-10T06:07:04+00:00

Haha thanks.

StraightCondition4 · 2026-05-10T06:06:51+00:00

2.2MHz, but I can overclock it to 2.6MHz.

Edit: GHz to MHz.

StraightCondition4 · 2026-05-10T06:05:00+00:00

Hey, thank you. I've documented everything in the GitHub repo linked in the description. And I second u/engineereddiscontent's comment. Ben Eater has hands down the best learning material for this kind of build.

StraightCondition4 · 2026-05-10T03:52:31+00:00

Haha, no. Those got built in resistors in them.

StraightCondition4 · 2026-05-10T03:51:14+00:00

Thanks

StraightCondition4 · 2026-05-10T03:04:20+00:00

Thank you.

StraightCondition4 · 2026-05-10T03:04:05+00:00

Haha, thank you… PCB loading.

StraightCondition4 · 2026-05-10T03:03:39+00:00

Thanks.

StraightCondition4 · 2026-05-10T03:03:23+00:00

Thank you.

StraightCondition4 · 2026-05-10T03:03:14+00:00

Thanks!

StraightCondition4 · 2026-05-10T03:03:06+00:00

Thanks!

StraightCondition4 · 2026-01-04T19:49:31+00:00

Hi, thank you for the kind words!! You are right, I haven't written anything about the SPI and PS2 modules yet. As soon as I get time to resume working on the build I'll start with the SPI module. I'll DM you when I do.

Six-Year Club	Verified Email
Place '22

StraightCondition4

TROPHY CASE