A new guide in the Adafruit Learning System: PyPortal TOTP 2FA Authentication Friend.
Tired of reaching for your phone when you need new 2FA tokens? (Or maybe you don’t have a phone!) In this guide you will build a simple device generates TOTP’s, using CircuitPython. It uses an Adafruit PyPortal which has WiFi, so it can connect to NTP and obtain the current time on startup. It has a built-in touchscreen display so you can tap to display your token.
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