Electronics & Virtual Labs

Virtual Breadboard Lab

Master physical breadboard connectivity by placing jumper wires, resistors, LEDs, pushbuttons, and DC power rails. Features internal node x-ray highlighting, live hole voltage inspection, and guided diagnostic repair missions.

Virtual Breadboard Lab

Direct Manipulation

Solderless breadboard circuit builder with internal node x-ray, live DC simulation, and guided fault repair

Mission 1: Power an LED with a Current-Limiting Resistor

Connect a 5V DC Supply to the power rails. Run a jumper wire to row 10, insert a 330 Ω resistor from row 10 to row 14, place an LED from row 14 (Anode) to row 18 (Cathode), and return row 18 with a wire to GND.

Component Tray:

100%

Breadboard Connectivity Inspector

Selected Hole:E10

Electrical Node:ROW_10_TOP

Calculated Voltage:0.00 V

Internally connected to: A10, B10, C10, D10

Circuit Simulation State

Complete Closed Loop Path

LEDs Active: 1

How a Breadboard Works

• Rows A through E share an internal metal clip.
• Rows F through J share a separate metal clip.
• The Center Trench isolates the two halves.
• Long Power Rails (+ and −) run along top and bottom.

Mathematical Formulation & Engineering Notes

Closed loop Kirchhoff current conservation through terminal rows (A–E, F–J) and power distribution bus rails (+/−).