CURRENT watches a real Arduino Nano build and stops you before you power a bad circuit.
A camera looks down at the breadboard. NVIDIA YOLO11, on CoreWeave, wakes the pipeline only when the board changes. NVIDIA Cosmos3-Reason reads the frame into a circuit twin: parts, pins, and wires. A deterministic checker (circuit rules and a small solver) decides the fault, and it speaks only after two looks agree, so a flicker is not a false alarm. Weights & Biases phrases that verified finding and does not invent one.
The 3D twin highlights the next pin. Flip the LED or pull the 220 ohm resistor and CURRENT says so out loud, marks the bad wire, and shows it moving to the right place: D13, resistor, LED anode, cathode to GND.
Hold the mic and ask anything. NVIDIA Canary transcribes the question, and the coach answers from the live board. Ask why the resistor is there, or what changed since the last step.
VAST Data keeps the whole session. Twin snapshots and key frames go to VAST S3, and past builds are searchable. NVIDIA Cosmos-Embed recalls a mistake you already made, so a repeated backwards LED is caught faster. A Blink simulator checks the same contract off-camera: missing resistor, wrong pin, open ground. A diagnostic mode searches the VAST index and says plainly when a clip is not a circuit.
Sabotage the board. CURRENT should interrupt before you plug it in.