From Gaming Icon to Signal Analyzer: ZX Spectrum Reimagined as a Z80 Frequency Counter for the 2025 One Hertz Challenge
Introduction The ZX Spectrum, introduced in 1982, shaped an era of affordable home computing. Today, more than four decades later, this classic Z80-based machine has been reimagined as a frequency counter capable of measuring signals up to 20 kHz. This transformation is part of Hackaday’s annual One Hertz Challenge, which asks makers to build devices … Read more