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M5Stack Cardputer

Password Manager

Encrypted password vault on the Cardputer that types logins into your computer as a USB keyboard.

Chipnik catalog@chipnik-catalog
M5Stack CardputerNo solderingAbout 5 minLicense MITSource on GitHub

What you need

Board
M5Stack Cardputer
Parts
microSD card

Password Manager keeps your passwords in an AES encrypted vault on the Cardputer's microSD card, unlocked with a master password. It generates strong random passwords and types the one you pick into any computer as a USB keyboard, so it never sits in a clipboard. The vault locks itself after a timeout. Original project by geo-tp on GitHub, MIT. Chipnik hosts the release binaries unchanged so you can flash them from the browser.

Back up the vault file from the microSD card now and then. If you forget the master password, the vault cannot be opened.

Firmware files come from the v1.0 release.

Parts

Buy everything for this project
1 ×microSD cardfor the encrypted vault

After flashing

  • The board restarts by itself when flashing is done.
  • If nothing happens, press the RST (EN) button once.

Flashing failed or the board behaves oddly

Versions

1.0.0 added to Chipnik 2026-11-05

Release v1.0 of geo-tp/Password-Manager, files unchanged. Release notes on GitHub

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