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Electronics & robotics

From the simplest circuit to building a robot: electricity, components, Arduino, sensors and hardware programming.

32 free sites · 23 in English.

1. Khan Academy – Electrical engineering English khanacademy.org

   Circuits and electronics with videos.

   For: Middle & high schoolCollege

2. All About Circuits – Textbook English allaboutcircuits.com

   A complete electronics textbook.

   For: Middle & high schoolGeneral public

3. Electronics Tutorials English electronics-tutorials.ws

   Clear tutorials on components and circuits.

   For: Middle & high schoolGeneral public

4. MIT OCW – 6.002 Circuits and Electronics English ocw.mit.edu

   Complete MIT course.

   For: College

5. Arduino – Documentation English docs.arduino.cc

   Official Arduino guides and reference.

   For: Middle & high schoolGeneral public

6. Raspberry Pi Projects English projects.raspberrypi.org

   Guided electronics and coding projects.

   For: Middle & high schoolGeneral public

7. MicroPython English micropython.org

   Python for microcontrollers.

   For: Middle & high schoolGeneral public

8. SparkFun Tutorials English learn.sparkfun.com

   Tutorials on components and projects.

   For: Middle & high schoolGeneral public

9. Adafruit Learning System English learn.adafruit.com

   Thousands of project guides.

   For: Middle & high schoolGeneral public

10. Instructables – Circuits English instructables.com

    Step-by-step electronics projects from the community.

    For: Middle & high schoolGeneral public

11. Ben Eater English eater.net

    Build an 8-bit computer and more on a breadboard.

    For: Middle & high schoolGeneral public

12. GreatScott! (YouTube) English youtube.com

    Electronics projects and explanations.

    For: Middle & high schoolGeneral public

13. Nand2Tetris English nand2tetris.org

    Build a computer starting from logic gates.

    For: CollegeGeneral public

14. ROS – Documentation English docs.ros.org

    The Robot Operating System.

    For: CollegeAdvanced

15. Modern Robotics (Northwestern) English hades.mech.northwestern.edu

    Robotics textbook and videos.

    For: CollegeAdvanced

16. Webots – Robot simulator English cyberbotics.com

    Free, open-source robot simulator.

    For: Middle & high schoolGeneral public

17. PhET – Circuit Construction Kit Multilingual phet.colorado.edu

    Build virtual circuits.

    For: Elementary schoolMiddle & high schoolCollege

18. Tinkercad Multilingual tinkercad.com

    Simulate circuits and Arduino, and design in 3D.

    For: Middle & high schoolGeneral public

19. Wokwi Multilingual wokwi.com

    Arduino, ESP32 and Raspberry Pi Pico simulator.

    For: Middle & high schoolGeneral public

20. Falstad – Circuit simulator Multilingual falstad.com

    Analog and digital circuit simulator.

    For: Middle & high schoolGeneral public

21. KiCad Multilingual kicad.org

    Free, open-source schematic and PCB design.

    For: Middle & high schoolGeneral public

22. ngspice Multilingual ngspice.sourceforge.io

    Open-source circuit simulator.

    For: Middle & high schoolGeneral public

23. CircuitVerse Multilingual circuitverse.org

    Free digital logic simulator and lessons.

    For: Middle & high schoolGeneral public

24. Logisim Evolution Multilingual github.com

    Open-source digital circuit simulator.

    For: Middle & high schoolGeneral public

25. Last Minute Engineers English lastminuteengineers.com

    Detailed tutorials on sensors and modules.

    For: Middle & high schoolGeneral public

26. Random Nerd Tutorials English randomnerdtutorials.com

    Free ESP32, Arduino and Raspberry Pi tutorials.

    For: Middle & high schoolGeneral public

27. ESP-IDF Programming Guide English docs.espressif.com

    Official ESP32 documentation.

    For: Middle & high schoolGeneral public

28. Underactuated Robotics (MIT) English underactuated.csail.mit.edu

    Russ Tedrake’s free course notes.

    For: Advanced

29. Robotic Manipulation (MIT) English manipulation.csail.mit.edu

    Free course notes with code.

    For: Advanced

30. Gazebo Multilingual gazebosim.org

    Open-source robot simulator.

    For: CollegeAdvanced

31. Articulated Robotics (YouTube) English youtube.com

    Build robots with ROS, step by step.

    For: Middle & high schoolGeneral public

32. EEVblog (YouTube) English youtube.com

    Electronics engineering video blog.

    For: Middle & high schoolGeneral public