How to connect a ps3 controller you already used for pc to a ps3?

How to connect a ps3 controller you already used for pc to a ps3? I have a ps3 remote which I have previously used for a pc . I am trying to reconnect it to my ps3 , but when I use the Usb cord and hit the PS button , the 4 lights just keep blinking and blinking and blinking. What do I Do ?


Video Game Accessoire ps3 controls ps3 controller