If you’re an electrical or electronics student, you’ve probably heard of Simurelay — a powerful relay logic simulator that helps you design, test, and understand industrial control circuits right on your phone.
In this guide, we’ll show you how to use Simurelay on your Android device — from installation to creating your first simulation project.
🔹 What is Simurelay?
Simurelay is an educational simulator designed for students, technicians, and engineers to learn about relay logic circuits.
It allows you to create virtual electrical diagrams using switches, relays, lamps, timers, motors, and contacts — all without needing physical components.
With Simurelay, you can visualize how current flows, test logical operations, and troubleshoot control systems — just like in real industrial setups.
🔹 Step 1: Download and Install Simurelay
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Open the Google Play Store on your Android phone.
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Type “Simurelay” in the search bar.
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Tap on the app developed by JNIF Software (or the official developer).
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Press Install and wait for the download to finish.
💡 Tip: If the app isn’t available in your region, you can download it via a trusted APK mirror site — but make sure it’s from a safe source!
🔹 Step 2: Open the App and Explore the Interface
Once installed, open Simurelay. You’ll see:
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A workspace area – where you build your circuits.
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A toolbar – with icons for switches, lamps, coils, relays, and wires.
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A simulation control panel – to start, stop, and reset your projects.
Spend a few minutes exploring the icons and learning what each symbol does.
🔹 Step 3: Create a New Circuit
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Tap the “+” or New Project button.
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Select components from the toolbar (e.g., switch, relay, lamp).
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Drag and drop them onto the workspace.
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Connect the components using wires by tapping one node and dragging to another.
Example:
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Connect a power source → switch → relay coil → lamp.
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When the switch closes, the lamp turns ON through the relay — just like a real circuit!
🔹 Step 4: Run the Simulation
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Tap the Play / Run button to start your simulation.
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Observe how the lamp reacts when you toggle the switch.
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Modify the circuit by adding timers or contacts for more complex logic.
You can pause or reset anytime to analyze circuit behavior step by step.
🔹 Step 5: Save and Share Your Project
When your simulation works correctly:
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Tap Menu → Save Project.
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Give it a descriptive name (like “Start-Stop Motor Control”).
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You can even export the circuit to share with friends or classmates.
🔹 Why Simurelay is Great for Learning
✅ No need for expensive hardware or breadboards.
✅ Real-time visualization of relay logic.
✅ Simple, lightweight, and perfect for mobile learning.
✅ Excellent tool for PLC training fundamentals.
🔹 Final Thoughts
Simurelay is one of the best tools for understanding industrial automation and relay control systems directly from your Android device.
It’s simple enough for beginners but powerful enough for advanced learners to test real-world scenarios.
If you’re studying electrical circuits, PLC, or automation, this app is a must-have in your learning toolkit.