OpenLedger

OpenLedger aims to build an open implementation of Hardware Wallets, made of independent small modules with low decoupled dependencies, running on an RTOS.

The current implementation runs on a ESP32 with an st7789 LCD screen, but looks ahead to decouple this requirements.

MVP

ESP32 ST7789 Ethereum Hardware wallet

• Creating Ethereum Wallets.
• Importing Ethereum wallets through paper codes or private keys.
• Exporting Ethereum wallets.
• managing your PIN.
• Storing all information encrypted.
• Accepting/Denying Transactions.
• Showing Transaction information.
• Storing and showing the Transactions History.
• OTA Updates through wifi with a pre-defined Public OTA Server Credentials.
• Bluetooth connection.
• BLE Wake up notifications.

This will need defining a Protocol for communication, and forking a known app, adding the implementation to this protocol, and building it.

Work Status

• Base code setup
• st7789 Driver
• Main menu
• Serial port navigation
• Font rendering library, Roboto, FontAwesome inclusion
• MVP Interface Design
• Layout system
• Key Manager System
• Manage PIN: Layout, Implementation.
• Physical navigation
• Creating Ethereum Wallets: Layout, Implementation.
• Forking app and adding specific connection (Metamask?) on Android.
• Accepting/Denying Transactions: Layout, Implementation.
• Storing and showing the Transactions History: Layout, Implementation.
• ... TBD

Done features, Currently working features, expected features

External Resources

View the current design on Figma

Implementation running @ 199ce52 video