Discussing the article: "Custom Indicator Workshop (Part 2) : Building a Practical Supertrend Expert Advisor in MQL5"

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Check out the new article: Custom Indicator Workshop (Part 2) : Building a Practical Supertrend Expert Advisor in MQL5.

Learn how to build a Supertrend-driven Expert Advisor in MQL5 from the ground up. The article covers embedding the indicator as a resource, reading buffer values on closed bars, detecting confirmed flips, aligning and switching positions, and configuring stop-loss modes and position sizing. It concludes with Strategy Tester setup and reproducible tests, leaving you with a configurable EA and a clear framework for further research and extensions.

Manual trend trading using the Supertrend indicator is simple in theory but demanding in practice. A Supertrend line flips, price confirms the direction, and the decision to buy or sell is clear. However, in live markets, that clarity often comes at the wrong moment. Execution is delayed, emotions interfere, and what should have been a clean entry turns into hesitation or overthinking.

This gap between seeing a signal and acting on it is where automation becomes valuable. Not to replace analysis, but to handle execution with speed and consistency. The Supertrend indicator is well-suited for this role. It offers a clear definition of trend state and a precise moment when that state changes. What is often missing is a clean and flexible way to translate those signals into actual trades.

In this article, we focus on building exactly that. We design an Expert Advisor in MQL5 that listens to signals from a Supertrend indicator and executes trades immediately when a confirmed trend change occurs. The logic is kept explicit and transparent. Every decision the EA makes is traceable to a clear market condition.

Beyond the trading logic itself, this article documents the whole development process. We move from signal detection to position management, risk control, and historical testing, explaining each step in practical terms. By the end, we will have a complete and functional Supertrend Expert Advisor, and more importantly, a reusable framework that readers can adapt and extend as they continue their research toward a sustainable trading edge.

Author: Chacha Ian Maroa