Uk

Here's the thing about connecting a psx pad directly to the parallel port: you're overvolting it. A playstation only uses 3.6V signals while a parallel port is 5V. So unless you're using a voltage translator or open drain buffer (on all the lines, not just VCC) you're potentially risking the controller's life.

mid nineties controllers were build with chips that easily take 5V

I'm currently working an a ready2use adapter. I'll post the eBay link as soon as I'm done with it.

jmarsh wrote on 2026-07-22, 16:37:

Here's the thing about connecting a psx pad directly to the parallel port: you're overvolting it. A playstation only uses 3.6V signals while a parallel port is 5V. So unless you're using a voltage translator or open drain buffer (on all the lines, not just VCC) you're potentially risking the controller's life.

I had already looked into that, and several sources say that the controller can handle 3–5V. But I think thats only for old PS1 controllers. Then I guess I'll install a few level shifters.

A single 74LS06 gives enough open-drain buffers to convert all the signals, you just need to add some pull-up resistors.

I've already chosen one (SN74LVC3G34DCUR) and implemented it.

Update: I’ve finished the PCB and now I’m waiting for manufacturing. I’ve already bought the components as well. After that, I’ll assemble a few and test them. If everything works well on my IBM ThinkPad 380XD running MS-DOS with a PS1 (analogue) controller, I’ll sell a few on eBay.

If you’d like to buy them directly from me, just send me a PM (At the moment, I don’t yet have permission to send a PM 🙁 ).