Safety decision trainer
USB LED flasher
You are building a 5 V LED flasher on a breadboard with a current-limited USB supply.
Risk meter
25%
Low voltage
Known parts
Current limiting available
No fixed wiring
Safety trainer
Practise the boundary call before the real job asks for it.
Sort scenarios into low-voltage bench work, pause-and-supervise, or licensed-only boundaries with clear feedback.
Safety first, always.
ElectroLab AI teaches theory, low-voltage electronics, and planning concepts. Mains voltage, switchboards, fixed wiring, high-current systems, and legal electrical work must only be performed by licensed electricians where required.
Open Safety CenterChoose the boundary
Safe next step
Use the breadboard lab or build planner, then record first measurements.