PS2 Game Pad to Basic Stamp CPU

[kershawrobotics]

I am a team leader for a high school robotics team (I am proficient in electronics and computer hardware, but not a programmer and not an IC chip geek).

The team obtained a control system with a PS2 style controller connected to a Parallax Basic Stamp BS2 cpu on a custom board. It controls 4 independent motors (using Motormind C boards) which drive a robot. We want to add a servo to control camera movement (tilt) with the PS2 Game Pad. I found an add-on device (PWMPAL) for the BS2 board to output a PWM signal for the servo.

My task is to:
o find schematics for the PS2 Game Pad
o find a discription of the PS2 Game Pad control software
o find a web site for PS2 Game Pad software commands
o coordinate the information with our programmer
o implement the hardware and software modifications.

The obvious question is, "Where do I find schematics and PBasic programming information for the PS2 Game Pad?"

[J.F.]

Here's one place you can find info on making a PSX controller interface,

http://www.emulatronia.com/reportajes/d ... /index.htm

Here's another good page,

http://www.stnield.com/

From the info on those pages, you should be able to figure out how the PSX controller works. It's not too tough - it's a pretty basic serial comm device. Look it over and if you have more questions, ask. I did a PSX/PS2 to Amiga interface, so I know how most of the peripherals communicate (joypad, dual shock, mouse, light gun, wheel).