When emulating all those old-school joystick-enabled consoles using only the standard set of PSP controls isn’t enough, Buzz and ZX-81 change your whole perspective on things with their IrDA Joystick Mod.

These two videos mark the first beta prototype of both the hardware and software. Buzz designed the PCB and programmed the PIC micro-controller, while ZX has coded up the PSP Magic and Pong demos.

Keep in mind: this mod only functions on PSP-1000 (Fat) models as it comes correct with an infrared port.

Here’s a video demonstration of PSP Magic and PSP Pong (written by Hardrive4u) modified to work with the IrDA joystick PCB –

ZX also mentions a cleaned up and more compact designed version with great new features, such as an integrated battery (AAA) pack, will be showcased soon.

Download:
PSP Pong v1.0.1 w/ IrDA Joystick Support
PSP Pong v1.0.1 w/ IrDA Joystick Support Source Code

Should you want to design your own, check Buzz’s site for PCB schematics, source code, and other documentation.

- source: ZX-81’s web site