While optical fingerprint modules are suitable for budget-friendly projects with ample space, capacitive modules are becoming the mainstream choice for high-security and embedded applications due to their superior security against fake fingerprints, compact size, and lower power consumption

A fingerprint module works by capturing fingerprint patterns, extracting key features to generate a digital template, and matching it against stored data, a process that relies on the seamless integration of its sensor, algorithm, and processing chip to ensure accurate and secure authentication.