Arduino Project Handbook

PROJECT 4: DISCO STROBE LIGHT

IN THIS PROJECT, YOU’LL APPLY THE SKILLS YOU LEARNED IN PROJECT 3 TO MAKE A STROBE LIGHT WITH ADJUSTABLE SPEED SETTINGS.

PARTS REQUIRED

• Arduino board

• Breadboard

• Jumper wires

• 2 blue LEDs

• 2 red LEDs

• 50k-ohm potentiometer

• 4 220-ohm resistors

HOW IT WORKS

Turning the potentiometer up or down changes the speed of the flashing lights, creating a strobe effect. You can use red and blue LEDs for a flashing police light effect (see Figure 4-1). Connect the LEDs of the same color to the same Arduino pin so they’ll ...