Raspberry Pi Pico/MicroPython 2FA TOTP Generator

Generates Time-based One-Time Password's (TOTP) using MicroPython, Raspberry Pi Pico and a 20x4 or 16x2 Character LCD.

Features

• Complete MicroPython implementation of the TOTP specification (and underlying HMAC-SHA1, Base32 dependencies).
• Countdown timer to present how long till the TOTP is about to expire.
• Use WiFi network and NTP to set the current UTC time - to correct the Raspberry Pi Pico's RTC

Usage

• Connect the Character LCD to the Raspberry Pi Pico.
• Create a codes.json file (based on codes.json.example) which includes the desired TOTP keys.
• Flash the Raspberry Pi Pico with the latest MicroPython with Pimoroni Libs.
• Copy the codebase to the Raspberry Pi Pico.
• Configure WiFi network SSID and password on synchronised_time.py.
• Now you can cycle through your TOTP's using a button.

Acknowledgements

Forked from pico-2fa-totp created by Edd Mann.

RPI PICO I2C LCD scripts from RPI-PICO-I2C-LCD created by Tyler Peppy.