LED (5 mm) Applications

Power, activity and fault lights on boards and panels, typically at 2–10 mA.

A GPIO pin through a resistor: the classic first Arduino circuit. Keep pin current within the board’s limit.

Red, yellow and green for state; blue and white need 3.3 V of headroom, so check the supply.

Find LED (5 mm) in the Components Library to place its schematic symbol and connect its pins.