Live now
ESP32-S3 Circuit Sandbox
Wire the water-monitor netlist virtually — inspection gates, buck trimpot, hazard detection, and a live serial CSV stream. Real failure modes included.
Open the sandboxInteractive tools
Resources
This section is becoming a set of interactive learning tools — simulators, trainers, and 3D models students can use alongside the curriculum and unit library. The first tools are in development.
Live now
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 designerLive now
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 scopeLive now
Multimeter Trainer
Learn to drive the meter before it lies to you: probes, modes, polarity, continuity, floating points — and the fuse everyone blows exactly once.
Open the trainerIn development
3D Component Library
Spin-around renderings of the AM radio, the vessel, and classroom builds.
Looking for downloadable unit packs? Those live with their units in the unit library.