Applied electronics multimeter

Applied Electronics Multimeter PCB

Custom PCB multimeter-style project developed during Applied Electronics. The project combined analogue front-end circuitry, microcontroller control, LCD output, PCB design, and practical testing.

Project Summary

This project was built around a custom PCB design for a multimeter-style measurement system. The design used an ATmega328P microcontroller, LCD display interface, voltage range circuitry, relay/switching support, and supporting analogue electronics.

The work moved from early breadboard development into KiCad schematic capture, PCB layout, generated manufacturing files, and physical test evidence.

What This Shows

• KiCad schematic capture and PCB layout
• ATmega328P microcontroller integration
• 2x16 LCD display interface
• DC voltage range design and testing
• AC voltage / sine wave test evidence
• Relay, reset, capacitor, and regulator circuit design
• Breadboard-to-PCB development workflow
• Oscilloscope and measurement-led debugging

Technical Areas

• Embedded C / Arduino
• PCB design
• Analogue electronics
• Voltage measurement circuits
• Microcontroller I/O
• LCD display control
• Hardware testing and validation

Repository Structure

.
├── README.md
├── kicad/
│   ├── project files
│   └── gerber files
├── code/
│   └── Arduino display / measurement code
└── evidence/
    ├── PCB layout screenshots
    ├── schematic evidence
    ├── breadboard prototype photos
    └── physical testing photos

Evidence Included

The evidence folder contains selected screenshots and photos showing:

• complete PCB layout
• complete circuit schematic
• physical PCB assembly
• LCD/breadboard prototype work
• AC voltage test
• DC 0-20 V test
• sine wave test setup
• KiCad schematic and PCB views

Notes

This public repository is curated for portfolio use. University reports, assessment material, marking schemes, and third-party reference images are intentionally not included.