STEM CCA
Sound & Sensing Lab
Explore the moving coil inside a speaker, follow an amplifier’s energy supply and test a metal detector model.
Explore the STEM labInteractive tools
Resources
Practise programming and electronics with interactive tools for the curriculum and unit library. Follow an algorithm, test a circuit or learn to use a measuring instrument.
Programming
Python Playground
Write and run Python in your browser. Explore Big O, searching, loops and functions with a code editor and output console.
Open the playgroundElectronics
ESP32-S3 Circuit Sandbox
Practise wiring the water monitor, adjusting the buck converter and checking the circuit before switching on the simulated power.
Open the sandboxElectronics
Voltage Divider Designer
Why 10kΩ and 20kΩ? Slide the resistors, watch the divider point climb the voltage ladder, and discover the difference between safe, wasteful, and jittery — all at the same voltage.
Open the designerElectronics
Oscilloscope Playground
Learn to drive a scope: timebase, volts per division, and a real trigger — on PWM, sine, sensor noise, DC ripple, and a button press that isn't as clean as it looks.
Open the scopeElectronics
Multimeter Trainer
Practise placing probes, choosing measurement modes and interpreting voltage, resistance, continuity and current readings.
Open the trainerProgramming
Algorithm Animations
Step through searching, sorting, efficiency and recursion with synchronized Python and variable values.
Explore the animationsLooking for downloadable unit packs? Those live with their units in the unit library.