cross-posted from: https://programming.dev/post/24922639

Any of these low-cost ESP32 development boards (ranging from ~$3 to ~$15) can be turned into a fully functional crypto hardware wallet with colibri.diy - ofc fully free and open source

The project is still in the pre-release stage, but if you like tinkering with Arduino & hardware, check out the github repository for the firmware and build instructions.

Please let me know what you think!