Digital Frequency Meter

This project implements a digital frequency meter using an Arduino Nano, custom PCB, and supporting components. It measures input frequencies and displays the segments using LED diodes.

Features

• Measures frequencies from 1 Hz to 1 MHz
• LED segment display for visual output
• Arduino Nano for control and processing
• Custom PCB design for integrated components
• WiFi connectivity for potential remote monitoring

Hardware Components

• Arduino Nano
• Power supply circuit (±5V)
• Input safety circuitry
• VFC320 for frequency-to-voltage conversion
• ICL7109 for voltage measurement
• MCP23017 I/O expanders for enhanced I/O capabilities
• LED segment display for visual output

Software

The Arduino code provides the following functionality:

• Frequency measurement
• LED segment control
• Communication with MCP23017 I/O expanders
• Basic WiFi connectivity (configurable)

PCB Design

The PCB design integrates all necessary components, including:

• Power supply circuitry
• Signal conditioning
• Microcontroller interfacing
• Display drivers

License

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

Acknowledgments

• Project created by Srđan Popadić
• Developed at the University of Novi Sad, Faculty of Technical Sciences