The 2 Pole Super Smoother Filter was created by John Ehlers
(Cybernetic Analysis For Stocks And Futures pg
202) and this one of his filters that follows the price very closely. I would recommend to change the default settings to what fits your trading style the best. Buy when the indicator line turns green and sell when it turns red.
Let me know if there are other scripts you would like to see or if you want something custom done!