A minimal Bitcoin library for MicroPython and Python3 designed for embedded systems and microcontrollers.
embit is a minimal Bitcoin library for MicroPython and Python3, specifically designed for embedded systems and microcontrollers. It provides essential Bitcoin functionality like key management, transaction signing, and BIP39 mnemonics while maintaining a small code footprint. The library solves the problem of running Bitcoin operations on resource-constrained hardware where traditional Bitcoin libraries are too heavy.
Developers building Bitcoin applications for embedded systems, hardware wallets, or IoT devices using MicroPython or Python3. It's also suitable for anyone needing a lightweight, auditable Bitcoin library for constrained environments.
Developers choose embit for its minimal footprint and MicroPython compatibility, enabling Bitcoin functionality on microcontrollers where other libraries won't fit. Its focus on auditability and embedded systems makes it unique among Bitcoin libraries.
A minimal bitcoin library for MicroPython and Python3 with a focus on embedded systems
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Designed specifically for microcontrollers, embit maintains a small codebase to fit within constrained hardware resources, as highlighted in its minimalism philosophy.
It supports MicroPython for embedded Bitcoin applications, enabling use on devices like ESP32 or Raspberry Pi Pico without heavy dependencies.
The library prioritizes simple, minimal code for easier security reviews, making it a strong choice for auditable projects like hardware wallets.
Includes functionality for the Liquid network via a libsecp-zkp fork, though it falls back to pure Python if prebuilt libraries fail, as noted in the README.
For MicroPython, it requires a custom build with extended hashlib and secp256k1 bindings, adding significant setup complexity and limiting out-of-the-box usability.
Prebuilt libraries may fail, forcing a fallback to slower pure Python implementations, which can impact performance in resource-constrained or high-demand scenarios.
Non-English BIP39 wordlists are not included by default; developers must source and provide them manually, increasing development overhead for international applications.