Move data between two devices via QR codes and an HTML page

194 · Adafruit Industries Blog · May 27, 2026, 6:49 p.m.
Software Mobile phone Smartphone utility data transfer QR codes offline technology software development
Summary
ShadowCat is a unique, offline HTML page designed for transferring data between two devices using QR codes, specifically targeting older phones with non-functioning radios but still capable of using their cameras and browsers.
Read full post on blog.adafruit.com →
AUTHOR