Arduino & ESP Simulator
Build virtual circuits, write real Arduino code, and simulate Arduino & ESP32 directly in your browser with zero setup.
Try these Boards
Learn and simulate Arduino Uno, Mega, Nano, and ESP32 boards online. Write code, test virtual circuits, and build projects with zero physical hardware.
Beginner Choice
Arduino Uno
The #1 board for beginners. Learn Arduino coding, blink your first LED, and connect simple sensor circuits.
Extended I/O
Arduino Mega
Extra digital and analog pins with more memory. Ideal for multi-sensor projects and larger electronics.
IoT & Wi-Fi
ESP32-C3 DevKit
Modern 32-bit RISC-V microcontroller. Perfect for practicing smart devices, connected IoT, and fast firmware.
Compact Board
Arduino Nano
Mini breadboard-friendly Arduino board. Great for compact electronics, robotics, and small portable gadgets.
Learn Arduino & ESP Components
Explore 40+ interactive sensors, displays, and actuators. Learn how electronic parts wire together step by step.
Sensing & Detection
Simulate high-precision environmental sensing. Learn to process data from DHT22, HC-SR04, and MPU6050.
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Visual Interaction
Create dynamic visual interfaces. Build beginner-friendly displays with SSD1306 OLED, LCD1602, and color TFT screens.
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Control & Output
Bring your circuits to life. Control motors, mechanical relays, push buttons, and multi-tone audio buzzers.
View All Components How Our Simulator Works
1
Visual Circuit Builder
Drag and drop Arduino boards, sensors, and electronic parts onto your virtual breadboard.
2
Instant Code & Simulation
Write your Arduino C++ sketch in the browser and click Run to see your circuit react in real time.
3
Ready for Physical Hardware
Ready to build for real? Copy or download your code and wiring setup directly to your physical board.
Got Questions?
Everything you need to know about the platform
Yes! The core simulation engine, virtual components, and code compiler are completely free. You can design circuits and simulate code directly in your browser without any subscriptions.
Our AI Assistant lets you generate wiring circuits using natural language prompts, explain microcontroller logic, and diagnose or fix code errors instantly. Every user receives free daily AI prompt credits to accelerate their workflow.
No hardware is required. Our platform provides a detailed virtual workspace where you can drag, drop, and wire Arduino and ESP boards exactly as you would on a physical breadboard. All microcontroller logic runs in real time.
Absolutely. All code written in our editor is 100% compatible with real Arduino and ESP boards. You can copy or download your source code (.ino or .cpp) and flash it directly to physical hardware.
We support AVR microcontrollers (Arduino Uno, Mega, Nano) and 32-bit RISC-V architectures (ESP32-C3). Supported communication protocols include GPIO, I2C, SPI, UART, and hardware PWM.