PSX2PTZ: PTZ camera control using PSX controller

The code is designed to allow wireless controllers to connect after powerup. This seems to work "most" of the time. Occasionally a wired controller is not detected on power up (stays in Connecting... state), but requires a reset before it connects. Needs further investigation.

This works just as well with a wired controller as it does with a wireless receiver module.

My wireless receiver died for some reason, hence the switch to wired controller until i get my hands on another one. As a precautionary measure I have introduced a 10Kohm pull up resistor to 3v3 for the incoming DATA line.

I will update the schematic to reflect this when I get a chance.

Apologies, I started adding features (such as config menu, preset buttons, snoop mode etc),then life got in the way.

I have submitted my original source code v1.1 release to github:

https://github.com/deoscode/Ps2Ptz_GPL

Seems to be working well.

Finishing off the preset up/down clear/save code.

Need to tart up code for github.