Arduino Money Counter with OLED Display

This Arduino project uses a 128x64 OLED display to show a formatted currency value on the screen. The project includes multiple buttons to adjust the currency denomination and reset button. The displayed values update in real-time.

Components

• Arduino (e.g., Uno, Nano)
• 128x64 OLED Display
• Push Buttons
• 10kOhm Resistors (pull-down for counter signal lines)
• Breadboard and jumper wires

Features

• Displays a formatted currency value on the OLED screen
• Supports multiple currency denominations
• Allows user to cycle through currency denominations
• Real-time counter updates

Schematic

[Will upload picture of setup here]

Code

Libraries Required

• Adafruit_GFX
• Adafruit_SSD1306

Pin Configuration

• OLED Display:

  • VCC to 5V
  • GND to GND
  • SCL to A5
  • SDA to A4

• Buttons:

  • buttonDebounce: Pin 5
  • buttonDenomination: Pin 4
  • buttonReset: Pin 6
  • INTERRUPT_PIN1: Pin 2
  • INTERRUPT_PIN2: Pin 3

Installation

1. Connect the components as per the schematic/picture.

2. Install the required libraries:

   • Open Arduino IDE
   • Go to Sketch > Include Library > Manage Libraries...
   • Search for "Adafruit GFX" and "Adafruit SSD1306"
   • Install both libraries

3. Upload the code to your Arduino board:

Usage

• buttonDebounce (Pin 5): Increases the debounce time.
• buttonDenomination (Pin 4): Cycles through different currency denominations.
• buttonReset (Pin 6): Resets the counters to zero.

License

This project is licensed under the MIT License - see the LICENSE file for details.