diff --git a/Indicators/MyIndicators/BollingerBands_HeikinAshi.mq5 b/Indicators/MyIndicators/BollingerBands_HeikinAshi.mq5
new file mode 100644
index 0000000..f1902e8
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+++ b/Indicators/MyIndicators/BollingerBands_HeikinAshi.mq5
@@ -0,0 +1,180 @@
+//+------------------------------------------------------------------+
+//|                                     BollingerBands_HeikinAshi.mq5|
+//|                      Copyright 2025, xxxxxxxx                    |
+//|                                                                  |
+//+------------------------------------------------------------------+
+#property copyright "Copyright 2025, xxxxxxxx"
+#property link      ""
+#property version   "1.00"
+#property description "Bollinger Bands on Heikin Ashi data"
+
+#include <MyIncludes\HeikinAshi_Tools.mqh>
+
+//--- Indicator Window and Plot Properties ---
+#property indicator_chart_window
+#property indicator_buffers 3 // Upper, Lower, Middle
+#property indicator_plots   3
+
+//--- Plot 1: Upper Band
+#property indicator_label1  "HA_Upper"
+#property indicator_type1   DRAW_LINE
+#property indicator_color1  clrDodgerBlue
+#property indicator_style1  STYLE_DOT
+
+//--- Plot 2: Lower Band
+#property indicator_label2  "HA_Lower"
+#property indicator_type2   DRAW_LINE
+#property indicator_color2  clrDodgerBlue
+#property indicator_style2  STYLE_DOT
+
+//--- Plot 3: Middle Band (Basis)
+#property indicator_label3  "HA_Basis"
+#property indicator_type3   DRAW_LINE
+#property indicator_color3  clrRed
+#property indicator_style3  STYLE_SOLID
+
+//--- Enum for selecting Heikin Ashi price source ---
+enum ENUM_HA_APPLIED_PRICE
+  {
+   HA_PRICE_CLOSE,
+   HA_PRICE_OPEN,
+   HA_PRICE_HIGH,
+   HA_PRICE_LOW
+  };
+
+//--- Input Parameters ---
+input int                  InpBBPeriod     = 20;
+input double               InpBBDeviation  = 2.0;
+input ENUM_HA_APPLIED_PRICE InpAppliedPrice = HA_PRICE_CLOSE;
+
+//--- Indicator Buffers ---
+double    BufferUpper[];
+double    BufferLower[];
+double    BufferMiddle[];
+
+//--- Global Objects and Variables ---
+int                       g_ExtBBPeriod;
+double                    g_ExtBBDeviation;
+CHeikinAshi_Calculator   *g_ha_calculator;
+
+//+------------------------------------------------------------------+
+//| Custom indicator initialization function.                        |
+//+------------------------------------------------------------------+
+int OnInit()
+  {
+   g_ExtBBPeriod    = (InpBBPeriod < 1) ? 1 : InpBBPeriod;
+   g_ExtBBDeviation = (InpBBDeviation <= 0) ? 2.0 : InpBBDeviation;
+
+   SetIndexBuffer(0, BufferUpper,  INDICATOR_DATA);
+   SetIndexBuffer(1, BufferLower,  INDICATOR_DATA);
+   SetIndexBuffer(2, BufferMiddle, INDICATOR_DATA);
+
+   ArraySetAsSeries(BufferUpper,  false);
+   ArraySetAsSeries(BufferLower,  false);
+   ArraySetAsSeries(BufferMiddle, false);
+
+   IndicatorSetInteger(INDICATOR_DIGITS, _Digits);
+   PlotIndexSetInteger(0, PLOT_DRAW_BEGIN, g_ExtBBPeriod - 1);
+   PlotIndexSetInteger(1, PLOT_DRAW_BEGIN, g_ExtBBPeriod - 1);
+   PlotIndexSetInteger(2, PLOT_DRAW_BEGIN, g_ExtBBPeriod - 1);
+   IndicatorSetString(INDICATOR_SHORTNAME, StringFormat("HA_BB(%d, %.1f)", g_ExtBBPeriod, g_ExtBBDeviation));
+
+   g_ha_calculator = new CHeikinAshi_Calculator();
+   if(CheckPointer(g_ha_calculator) == POINTER_INVALID)
+     {
+      Print("Error creating CHeikinAshi_Calculator object");
+      return(INIT_FAILED);
+     }
+   return(INIT_SUCCEEDED);
+  }
+
+//+------------------------------------------------------------------+
+//| Custom indicator deinitialization function.                      |
+//+------------------------------------------------------------------+
+void OnDeinit(const int reason)
+  {
+   if(CheckPointer(g_ha_calculator) != POINTER_INVALID)
+     {
+      delete g_ha_calculator;
+      g_ha_calculator = NULL;
+     }
+  }
+
+//+------------------------------------------------------------------+
+//| Bollinger Bands on Heikin Ashi calculation function.             |
+//+------------------------------------------------------------------+
+int OnCalculate(const int rates_total,
+                const int prev_calculated,
+                const datetime &time[],
+                const double &open[],
+                const double &high[],
+                const double &low[],
+                const double &close[],
+                const long &tick_volume[],
+                const long &volume[],
+                const int &spread[])
+  {
+   if(rates_total < g_ExtBBPeriod)
+      return(0);
+
+//--- Intermediate Heikin Ashi Buffers
+   double ha_open[], ha_high[], ha_low[], ha_close[];
+   ArrayResize(ha_open, rates_total);
+   ArrayResize(ha_high, rates_total);
+   ArrayResize(ha_low, rates_total);
+   ArrayResize(ha_close, rates_total);
+
+//--- STEP 1: Calculate Heikin Ashi bars
+   g_ha_calculator.Calculate(rates_total, open, high, low, close, ha_open, ha_high, ha_low, ha_close);
+
+//--- STEP 2: Prepare the Heikin Ashi source price array
+   double ha_price_source[];
+   ArrayResize(ha_price_source, rates_total);
+   switch(InpAppliedPrice)
+     {
+      case HA_PRICE_OPEN:
+         ArrayCopy(ha_price_source, ha_open);
+         break;
+      case HA_PRICE_HIGH:
+         ArrayCopy(ha_price_source, ha_high);
+         break;
+      case HA_PRICE_LOW:
+         ArrayCopy(ha_price_source, ha_low);
+         break;
+      default:
+         ArrayCopy(ha_price_source, ha_close);
+         break;
+     }
+
+//--- STEP 3: Main calculation loop on HA data
+   double sma_sum = 0;
+   for(int i = 0; i < rates_total; i++)
+     {
+      sma_sum += ha_price_source[i];
+
+      if(i >= g_ExtBBPeriod)
+        {
+         sma_sum -= ha_price_source[i - g_ExtBBPeriod];
+        }
+
+      if(i >= g_ExtBBPeriod - 1)
+        {
+         BufferMiddle[i] = sma_sum / g_ExtBBPeriod;
+
+         double deviation_sum_sq = 0;
+         for(int j = 0; j < g_ExtBBPeriod; j++)
+           {
+            double diff = ha_price_source[i - j] - BufferMiddle[i];
+            deviation_sum_sq += diff * diff;
+           }
+         double std_dev = MathSqrt(deviation_sum_sq / g_ExtBBPeriod);
+
+         double dev_offset = g_ExtBBDeviation * std_dev;
+         BufferUpper[i] = BufferMiddle[i] + dev_offset;
+         BufferLower[i] = BufferMiddle[i] - dev_offset;
+        }
+     }
+   return(rates_total);
+  }
+//+------------------------------------------------------------------+
+//+------------------------------------------------------------------+