This indicator give good buy & sell signals especially short time period. Few changes made from Mr.Johnman's script. Go long when green color appear and go short when red color appear. Take a trade on candle High (long) & Low (short).
How to set SL & Target for this Indicator ?
Open the Renko Chart from your broker's trading chart (I'm using Zerodha from India). Find the Range from it, the has to be your SL & Target.