AI Tool Guides
Best for
3D design and basic circuit simulation
Works on
Browser
Alternatives
Fusion 360, OnShape
Watch out
Simplified; not suitable for complex engineering projects
What It Does
Tinkercad by Autodesk is a free browser-based tool for 3D design, electronics simulation, and coding. Its Circuits module lets you build and simulate Arduino circuits with a virtual breadboard, components (LEDs, sensors, motors, displays), and a code editor—all without any physical hardware. It is the safest way to prototype electronics projects: no short circuits, no burnt components, no cost. The 3D design module lets you create models for 3D printing.
Setup in 5 Minutes
and create a free Autodesk account.
- Click Circuits to open the electronics simulator.
- Drag an Arduino Uno onto the canvas, add components from the
library, wire them up, and click Start Simulation.
- The code editor supports Arduino C/C++ and Blocks.
Try This
Build a traffic light circuit with three LEDs (red, amber, green)
connected to an Arduino. Write code that cycles through the lights with
realistic UK timing (red, red-amber, green, amber, red). Add a push
button for a pedestrian crossing that interrupts the cycle. Run the
simulation and verify the timing. When you are satisfied, build it for
real with a £10 Arduino kit.
Follow Along
Follow Along — Build a Burglar Alarm.
resistor).
- Write code that reads the PIR sensor: when motion is detected, turn on the LED and sound the buzzer for three seconds.
- Click Start Simulation and test by toggling the PIR sensor's motion input.
- Add a 10-second arming delay after the program starts, so you have time to move away before the alarm activates.
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FreeAI Analysis
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