DIY Bitcoin Hardware Wallet with Touchscreen & QR Scanner in Micropython

Run Unittests

# Build unix firmware
./make_unix.sh

# Run unittests in unix firmware
./run_tests.sh

TODO

• Python
  • Bitcoin
    • ECC
      • Use bytes internally, not integers
    • PSBT
      • Only support segwit
      • Unoptimized first version, then decrease memory footprint
    • HD wallets
  • Device
    • Serial driver
    • QR driver
    • Display driver (most work is on the C side)
  • Libwally?
    • We have a gen_mpy branch that attempted to auto-generate micropython bindings for libwally using this approach. It seemed very complex so we decided to postpone for now, but it should be attempted again in the future.