Offline encrypted secrets vault for the M5Stack Cardputer ADV, v0.2.0
Use Chrome or Edge on a desktop computer.
Turn the Cardputer off, hold G0, plug in USB-C, then release.
Click Install and choose the USB serial port.
Before you install: flashing replaces whatever firmware is on the device.
If you already use CardVault, make an SD backup first, because erasing the flash erases the vault.
Verify the image checksum against the
GitHub release.
SHA-256 of the image this page installs: 86c46c02023d12efaefaeda02cfd08f65f275c29008500fe18364d6a1496ea2b
The image is built by the release workflow from the tagged source. Check it with
gh attestation verify cardvault-v0.2.0-cardputer-adv.bin --repo Besermenji/cardvault.
This page serves its own copy of esp-web-tools, with no code from other hosts.
Support CardVault
CardVault is free and MIT licensed. Donations pay for hardware and development time.
