VGA signal generation using discrete electronic components

It’s been a while since I published this series of articles on nerdhut about monochrome video signals for an old Macintosh CRT. I wanted to post a short follow-up article about VGA and how to generate such signals. This article will also be a follow up to the custom CPU series and it will be another step towards the custom computer, I always wanted to design and build.

However, in this article, I only want to take a look at how the standard 640×480@60Hz VGA-Signal can be created using a screen testing device, made from discrete electronic components, which can be used to test monitors without the need of a computer being around. Continue reading VGA signal generation using discrete electronic components

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Autodesk 123D Circuits free breadboard simulator

Unfortunately, this online tool is no longer available. If you try to access it, you’ll be redirected to Autodesk’s new online CAD program called TinkerCAD, which is a great free CAD software btw.

If anybody is looking for a good (and free) breadboard simulator, i can recommend the one from Autodesk: 123D Circuits Continue reading Autodesk 123D Circuits free breadboard simulator