Case Studies: Expert Advisors & Indicators

Real code snippets and brief testing results from completed projects.

Breakout EA

MT5 / MQL5

A morning-range breakout EA with an ATR filter and dynamic lot sizing based on account balance.

Profit factor of 1.82 on EURUSD H1 over two years

RSI Divergence

TradingView / Pine Script

An RSI divergence indicator that marks up price and oscillator lines, with alerts and webhook support.

64% signal accuracy on the daily timeframe in backtests

Grid Scalper

Binance / Python

A grid bot for the Binance spot market with order repositioning, averaging, and an emergency stop.

Consistent results in ranging markets, with drawdown below 8%

breakout_ea.mq5

//--- Breakout of Asian range
input int AsianStart = 0;
input int AsianEnd = 8;
input double RiskPct = 1.0;

void OnTick()
{
  double high = GetAsianHigh(AsianStart, AsianEnd);
  double low = GetAsianLow(AsianStart, AsianEnd);
  double atr = iATR(_Symbol, PERIOD_CURRENT, 14);

  if(Close[0] > high + atr * 0.2)
    OpenPosition(ORDER_TYPE_BUY, RiskPct);
  else if(Close[0] < low - atr * 0.2)
    OpenPosition(ORDER_TYPE_SELL, RiskPct);
}

rsi_divergence.pine

//@version=5
indicator("RSI Divergence", overlay=true)

rsi = ta.rsi(close, 14)
pivotHigh = ta.pivothigh(5, 5)
pivotLow = ta.pivotlow(5, 5)

plotshape(pivotHigh && rsi < ta.valuewhen(pivotHigh, rsi, 1),
  style=shape.triangledown, location=location.abovebar,
  color=color.red, title="Bearish Div")

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