Indicator XXDPO_Candle can provide alerts and send email and push notifications when trading signals occur. Possible signal options:

• Zero breakthrough by the candle;
• Changing candle movement direction;
• Overbought or oversold levels breakthrough;
• Exiting overbought or oversold areas.
  

Input parameters for activating signals:

input uint NumberofBar=1;          // Bar number for the signal activation  input bool SoundON=true;           // Enable alerts  input uint NumberofAlerts=2;       // Number of alerts  input bool EMailON=false;          // Enable mailing the signal  input bool PushON=false;           // Enable sending the signal to mobile devices  

In this version of the indicator, the support/resistance levels have been added, as well as displaying in lighter colors the moments where the candles reach the overbought and oversold areas. It should be taken into consideration that this indicator is not normalized and the values of the support and resistance levels should be chosen for each timeframe individually! The higher the indicator's timeframe is, the higher the values of those levels must be in absolute terms.

input double HighLevel=+0.6;                      // overbought level  input double LowLevel=-0.6;                       // oversold level  

The indicator uses SmoothAlgorithms.mqh library classes (copy it to <terminal_data_folder>\MQL5\Include). The use of the classes was described in detail in the article "Averaging Price Series for Intermediate Calculations Without Using Additional Buffers".

Fig. 2. XXDPO_Candle_Alerts. Activating an alert.