In this project I'm going to show you how to make led chaser using Arduino uno. when the power is supplied to it the led turn on and seem to chase each other.

This is a very simple project.First we should connect all cathode legs of led's to negative using resistor and then all anode legs to all digital pins on the Arduino uno

watch this video 👇

NOTE : You can also reduce the number led's and resistors if you don't have and change the code.Based on the number of led's those many number of lines of code should be written

EXPANDED TECHNICAL DETAILS

Sequential Pulse Animation

This project is a classic "Knight Rider" style light effect, demonstrating the use of digital output arrays and non-blocking timing.

• Linear Bit-Shifting Logic: The Arduino manages a series of 8-10 LEDs. The firmware uses a for loop to cycle the bit state across the pins, creating a smooth "Running" light effect.
• Dynamic Speed Modulation: Features a potentiometer input; the Arduino captures the analog voltage and maps it to the delay time between shifts, allowing the user to speed up or slow down the "Chaser" in real-time.

Aesthetics

• Tail-Fade Animation: (Advanced version) Instead of a single LED being on, the firmware uses PWM to create a "Trailing" effect, where the following LEDs gradually dim, providing a cinematic, fluid motion.