A semaphore signal indicator that gives trade signals when candles Heiken Ashi Smoothed change their directions.

The indicator uses the classes of library SmoothAlgorithms.mqh (to be copied to terminal_data_catalog\MQL5\Include), working with which was described in details in article Averaging Price Series for Intermediate Calculations without Using Additional Buffers.

Fig.1. Indicator Heiken_Ashi_Smoothed_Trend