7-Segment Display with Brightness Control

This Arduino project controls a 7-segment display to show numbers (0–9) and allows the brightness to be adjusted using buttons.

Components

• Arduino Uno (or compatible)
• 7-segment display
• 3 push buttons
• Resistors
• Breadboard and jumper wires

Schematic diagram

Circuit

• 7-segment pins: Connect to Arduino pins as per the pins[] array.
• Buttons: Three buttons connected to pins 10, 11, and 12 for increasing, decreasing the displayed number, and adjusting brightness.
• PWM Pin: Connected to pin 5 for brightness control via PWM.

Pin Connections

• Increase Button: Pin 10
• Decrease Button: Pin 11
• Brightness Button: Pin 12
• PWM Brightness Control: Pin 5
• 7-Segment Display: Pins {7, 6, 4, 3, 2, 8, 9}

How it Works

• Number Display: Use the increase and decrease buttons to change the number on the display (0–9).
• Brightness Control: Use the brightness button to adjust the display brightness up or down, with a smooth transition.
• Debouncing: The code ensures buttons are debounced using the isButtonsPressed flag and a small delay.

License

This project is open-source and available under the MIT License.