STEM Hardware in the Classroom

Physical computing — buttons, lights, sensors, motors — turns abstract code into something kids can hold. The 2026 K-8 default is the BBC micro:bit; for older classrooms see microcontroller platforms, Arduino + PlatformIO, Raspberry Pi classroom projects, and CAD for kids.

The K-8 dominant pick

• ★ ★ BBC micro:bit — open hardware (Schematic + reference design CC-BY-SA); ~$15-20 for the v2 board; built-in LED matrix, buttons, accelerometer, magnetometer, microphone, speaker, BLE, radio. Code via MakeCode (block / JS), MicroPython, Scratch. Curriculum is free. v2 added microphone + speaker + ML; v2.21 (2024) is the current revision.
  • https://github.com/microbit-foundation
• Calliope mini — German micro:bit variant; same MakeCode tooling; popular in DACH schools.
• CodeBug — UK; similar shape.

Arduino in education

• ★ Arduino Education — paid kits; Arduino Cloud Education + Arduino IDE; the most-distributed maker hardware. See Arduino + PlatformIO.
• Arduino Science Kit Physics Lab — paid; pre-configured science experiments.
• Adafruit Circuit Playground (Express / Bluefruit) — popular K-8 alternative; CircuitPython
  • MakeCode.

Raspberry Pi in education

• See Pi classic projects, Pi models, Pi GPIO libraries.
• Raspberry Pi Foundation — non-profit behind Pi; free curriculum, Code Club + CoderDojo worldwide networks of free coding clubs.
• Pico — RP2040 microcontroller (~$5); MicroPython / C / CircuitPython; maker-classroom default microcontroller for older students.
• Mu Editor, Thonny — free beginner Python IDEs designed for Pi.

Robotics platforms (paid)

• LEGO Education SPIKE Prime / SPIKE Essential — paid; current LEGO classroom robots; replace Mindstorms (sunset 2022). Scratch-flavoured + Python.
• LEGO Mindstorms EV3 — sunset retail, but software still maintained as EV3 Classroom. Used kits remain widely available.
• VEX Robotics (VEX IQ, VEX V5, VEX 123) — paid; competition-focused; Python / C++.
• FIRST Robotics — non-profit competition framework (FRC, FTC, FLL); kits are paid.
• Sphero — paid; programmable balls / robots; block + JS.
• Ozobot — paid; tiny line-following bot; markers + OzoBlockly.
• Edison Robot — affordable; LEGO-compatible.
• MakeBlock mBot / Codey Rocky — paid; affordable kits with block coding.
• Wonder Workshop Dash & Dot — paid; preschool / early-elementary friendly.
• Bee-Bot / Blue-Bot / Pro-Bot — paid; floor robots for K-2.

Maker / STEAM (broader)

• micro:bit Foundation curriculum — free; ~80 hours of K-8 lessons.
• Arduino Education curriculum — free with kits.
• Tinkercad Circuits + Codeblocks — free; simulate Arduino / micro:bit circuits in the browser; see CAD for kids.
• Wokwi — free + paid; embedded-systems simulator; see Wokwi simulators.
• PocketLab — paid; classroom data-logging sensor.
• Vernier sensors / Pasco — paid; lab-grade probes for high-school science.

Electronics teaching

• ★ CircuitVerse — AGPL; in-browser logic-gate simulator.
  • https://github.com/CircuitVerse/CircuitVerse
• Logisim Evolution — GPL; classic logic-design teaching tool.
• Tinkercad Circuits — free; Arduino simulator.
• Falstad Circuit Simulator — free; SPICE-flavoured.
• For breadboards / PCB / soldering etc, see the Test/Measurement section.

Pick this if…

• K-8 default coding hardware: micro:bit (~$15).
• Older / more powerful microcontroller: Pi Pico or Arduino Uno R4.
• Classroom robotics, paid: LEGO SPIKE Prime or VEX IQ.
• Pre-school floor robots: Bee-Bot.
• Physical-computing on a tablet only: Sphero / Ozobot / Wonder Workshop Dash.
• Simulate before buying hardware: Tinkercad Circuits or Wokwi.