Robotics Circuit Simulator
YSEF Simulator
Practice Robotics & IoT Without Any Hardware
YSEF Simulator is a free, browser-based circuit lab where you can drag and drop components, wire up real circuits, write code and instantly see the results — no Arduino board, no sensors, no soldering required. It's the same hands-on practice our Robotics & IoT students get, available to everyone, anytime.
Build Circuits
Drag & drop boards, sensors, LEDs, motors and more onto a virtual breadboard.
Write Real Code
Program your circuit with genuine Arduino-style logic right in the browser.
Run Instantly
Hit run and watch your LEDs blink, motors spin and sensors react in real time.
Learn Risk-Free
Experiment freely — no components to damage, no kit required to get started.
🧩 Components
Tap "Browse Components" to pick a category, then a part — it'll drop onto the canvas. You can also drag a part straight onto the canvas. Click a pin and drag it to another pin to make a wire.
🧩 Components
Code — setup() / loop()
Connections
0Console / Output
Ready to Go Beyond the Simulator?
Join YSEF's Robotics & IoT course to work with real hardware, guided projects and certified training.
Explore Robotics Course