I know this has been asked a few times here and I don't think a solution was ever posted but I was looking for things to do with my Teensy and found this.

You can control your PS3 with a mouse and keyboard through your computer, simple as that. Since I didn't make the tutorial and I haven't even tried it (don't have a PS3 or a BT dongle for my PC) I'm just going to link and you can try it yourself.