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embedded-hal

A shared set of Rust traits, such as "an output pin" or "an I2C bus", that drivers can be written against.

embedded-hal is a crate of traits (OutputPin, I2c, SpiDevice, DelayNs) that HALs implement and device drivers depend on, so one driver works across chips.

Examples

  • A driver written against embedded_hal::digital::OutputPin can switch the greenhouse fan on an ESP32-C6, or a pin on any other chip whose HAL implements the trait.

  • embedded-hal 1.0.0 holds traits like OutputPin, I2c, SpiDevice and DelayNs, with almost no code of its own.

See also

HAL trait bound peripheral access crate
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