Arduino Simulator & ESP32

Arduino Simulator & ESP32 lets you build and run real Arduino and ESP32 projects on your phone, in 3D. No hardware, no wires, nothing to buy. Free AI help, no sign-in needed.

Open a lab, watch the circuit run in 3D and change the code right there. The simulation updates live, so you learn what each line does instead of just reading about it.

NEW: ESP32 (beta)

• ESP32 course with 12 lessons, plus 7 ESP32 labs

• Write Arduino C++ or MicroPython

• Switch between Arduino Uno and ESP32 anywhere in the app

WHAT'S INSIDE

• 25 Arduino Uno labs: LEDs, servo, ultrasonic sensor, LCD and OLED displays, NeoPixel strip, keypad, relay and more

• Step-by-step courses: Arduino basics, sensors, displays and input, motion and power

• AI help that explains compile errors and suggests fixes for your code

• Real compiler with clear error lines, like the Arduino IDE

• Serial monitor to watch your sketch's output live

• Block editor if you prefer dragging blocks to typing

• Parts guide with pins, voltages and wiring tips

• Upload to a real board: connect an Arduino or ESP32 over USB (OTG) and flash your sketch from your phone

• Save your own sketches or start a blank project

• Dark and light themes, 9 app languages

Made for students, teachers, makers and anyone starting with electronics. No account needed.

LABS

Arduino Uno: Blink LED, Fade LED, RGB LED Mixer, Tactile Button LED, Motor Driver, Buzzer Alarm, SOS Signal, Serial Monitor, RGB LED Module, IR RGB Module, Servo Sweep, Ultrasonic Ruler, Ultrasonic Alarm, Flame Sensor Module, Flame Intensity Monitor, I2C LCD Screen, LDR Light Sensor, Temperature Switch, Potentiometer, Soil Moisture, NTC Thermistor, OLED Display, NeoPixel Strip, 4x4 Keypad, Relay Module

ESP32: Blink, Fade (PWM), Button, Knob (analogRead), RGB Mixer, Ultrasonic Alarm, OLED Display

Arduino and ESP32 are trademarks of their respective owners. This app is independent and not affiliated with them.