Definition
Firmware is the operating software that runs on a miner’s control board. It handles all aspects of mining operations: distributing work to hashboards, communicating with mining pools via the Stratum protocol, monitoring temperatures, controlling fan speeds, and providing the web-based management interface.
Stock firmware comes from the manufacturer, but custom firmware (like Braiins OS, VNish, or AxeOS for Bitaxe) can unlock features like better overclocking, undervolting, improved efficiency tuning, and additional pool protocol support. Firmware updates can fix bugs and improve performance.
In Simple Terms
The software running on a miner that manages hashing, pool connections, and hardware monitoring.
Software embedded in the miner's control board that manages mining operations, pool connections, temperature monitoring, and fan control.