RAM Fiddling Turns VGA Converter into Video Synth

If you happen to’re involved in circuit bent video however now not certain the place to begin, the very good information [LoFi Future] has get a hold of for enhancing the inexpensive and readily to be had GBS-8100(*19*) VGA to composite converter can be an ideal first step. Whilst we wouldn’t name it a very simple amendment, the circuit documentation and demonstration video underneath pass an extended option to making it as obtainable as imaginable to new avid gamers.

Some soldering will likely be required…

Whilst different video converters have all-in-one chipsets which can be a lot more difficult to paintings with, [LoFi Future] explains that the separate EM636165TS DRAM chip at the GBS-8100 supplies an excellent spot to faucet in and wreak some technicolor havoc. Via mapping out the pins and learning how the video output is corrupted via grounding them out or connecting them to one another, he’s been ready to get a hold of rather repeatable “recipes” for various results.

In essentially the most elementary shape, when you’ve soldered the pins of the DRAM chip as much as the plug board interface, you’d technically be executed. However [LoFi Future] takes it a step additional and pairs the GBS-8100 with a separate composite to VGA converter. This gives some further results within the type of comments loops and hue adjustment, however extra almost, lets in the software to take care of composite on each the enter and output. It’s numerous {hardware} to cram into the enclosure, however because of little touches like the published panel graphics, the overall product does appears very skilled.

Except the occasional changed NES Zapper(*19*), lots of the circuit bent {hardware} we see is of the audio selection(*19*). However with tasks like this one and the MIDI managed SNES we coated ultimate 12 months(*19*) as inspiration, we would possibly see a balancing of the scales.

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