Arduino Uno Seven Segment Display

This project demonstrates how to display numbers from 0 to 9 on a seven-segment display using an Arduino Uno.

The seven-segment display will sequentially show each digit for one second.

Components Needed

• Arduino UNO
• Seven Segment Display
• Resistors (appropriate value for current limiting)
• Jumper Wires
• Breadboard

Block Diagram

Hardware Wiring Explanation:

Connect Seven Segment Display to Arduino Uno:

Segment A: Connect to digital pin 2.

Segment B: Connect to digital pin 3.

Segment C: Connect to digital pin 4.

Segment D: Connect to digital pin 5.

Segment E: Connect to digital pin 6.

Segment F: Connect to digital pin 7.

Segment G: Connect to digital pin 8.

Common Cathode/Anode: Connect to GND (for common cathode) or VCC (for common anode) through a current-limiting resistor.

Wire up the seven-segment display to the Arduino Uno as per the circuit setup section.

Ensure the common cathode/anode is connected correctly.

Software (Arduino IDE):

Open the Arduino IDE and create a new sketch.

Copy and paste the provided Arduino code into the sketch.

Upload the code to the Arduino Uno.

Project Operation

The seven-segment display will start showing numbers from 0 to 9 sequentially, with each number displayed for one second.

Applications

Notes

Ensure the correct value resistors are used to limit current and protect the segments of the display.

Adjust the pin mappings and display logic for different types or models of seven-segment displays.

Explore multiplexing techniques for controlling multiple seven-segment displays with fewer pins.