Reviving a 20-Year-Old iMac G4
Diagnosing and repairing a non-booting 2003 iMac G4 by tracking down a failing power-supply capacitor, reverse-engineering the PSU, and bringing a design icon back to life.
Computer Engineering @ Georgia Tech
Hardware, firmware, and RF systems
I am a Computer Engineering student at Georgia Tech based in Atlanta, with a focus on embedded systems, RF communications, and hardware/software co-design. My work centers on custom PCB design and firmware development, Verilog, and applied RF systems including APRS, LoRa, and CAN bus networks. I'm also an avid amateur radio operator (KN4MXH).
Georgia Institute of Technology
B.S. Computer Engineering
Concentrations: Telecommunications, Computing Hardware & Emerging
Architectures
Expected Graduation: December 2027 and a MS-ECE after...
Relevant coursework: Circuit Analysis (AC/DC), Embedded Systems, Digital
Logic and FPGA Design
Diagnosing and repairing a non-booting 2003 iMac G4 by tracking down a failing power-supply capacitor, reverse-engineering the PSU, and bringing a design icon back to life.
A 1W Meshtastic HAT for the Raspberry Pi Zero with an integrated 12V buck converter, SMA output, and SX1262 LoRa module.
| Name | Description | Language | Links |
|---|---|---|---|
| cfdns | A fully-featured automatic DDNS updater, built for Cloudflare DNS. | Rust | GitHub |
| tired | A Wayland screen dimmer that provides a grace period before gradually fading the screen to sleep. | C | GitHub AUR |
| hamdb-rs | Minimal async client for the public HamDB amateur radio callsign lookup service. | Rust | GitHub |
| formlabs-web-api-rs | An async API client for the Formlabs Developer Web API, with support for auto credential revalidation. | Rust | GitHub |
| PicoRGB | A C library to control builtin Pico WS2812 leds using PIO | C | GitHub |
| Pico_BusIO | Drop-in polyfill to support Adafruit drivers using BusIO on rp2040/rp2350 | C | GitHub |
| piconfc | PN532 driver and NDEF reader/writer for the Raspberry Pi Pico | C | GitHub |
President, Georgia Tech Amateur Radio Club (W4AQL)
Organized the largest collegiate amateur radio bootcamp with over 60 students earning licenses each semester. Secured over $15,000 in sponsorships and donations to modernize club equipment.
Hardware Lead, Lightning From The Edge of Space Research Group
Coordinating a seven person team to design a modular PCB hardware stackup for a rapidly-deployable high-altitude balloon. Currently designing several new boards, including a high current, dual rail power board and a dual transciever LoRa radio telemetry system.
Email: contact@matthewlyon.net
Phone: +1 (404) 857-0024
My resume is available upon request. Please feel free to email me!