A Rust library that provides access to the Raspberry Pi's GPIO, I2C, PWM, SPI and UART peripherals.
hal-unproven feature flag (disabled by default), which enables unproven embedded-hal trait implementations. Note that embedded-hal's unproven traits don't follow semver rules. Patch releases may introduce breaking changes.Sync trait for IoPin and OutputPin.unproven embedded-hal trait digital::InputPin for Pin, InputPin, OutputPin and IoPin.unproven embedded-hal traits digital::{StatefulOutputPin, ToggleableOutputPin} and Pwm for OutputPin and IoPin.MSG_WAITING flag from software PWM implementation to resolve an issue found in the wild causing delays in message processing (contributed by @aehmlo).hal module, containing embedded-hal trait implementations that aren't tied to a specific peripheral.embedded-hal traits blocking::delay::{DelayMs, DelayUs} for Delay.embedded-hal trait timer::CountDown for Timer (contributed by @jacobrosenthal).Display trait for Channel and Polarity.unproven embedded-hal trait Pwm for Pwm.Display trait for BitOrder, Bus, Mode, Polarity and SlaveSelect.From<Error> implementation due to a conflict with nb v0.1.2 (contributed by @gferon).embedded-hal traits serial::{Read, Write} and blocking::serial::Write for Uart.timespec fields.hal feature (disabled by default), which includes embedded-hal trait implementations for all supported peripherals.Gpio example demonstrating software-based PWM.Model::__Nonexhaustive and SoC::__Nonexhaustive variants, indicating Model and SoC shouldn't be exhaustively matched. After this change, adding new variants to these enums when a new Raspberry Pi model is released won't be considered a breaking change anymore. This is a hack that can still be circumvented, but anyone that does so should be aware of the repercussions. This will be replaced once #[non_exhaustive] stabilizes.OutputPin and IoPin through set_pwm(), set_pwm_frequency() and clear_pwm().is_set_low() and is_set_high() to OutputPin to check the pin's output state.embedded-hal traits OutputPin and PwmPin for OutputPin and IoPin.embedded-hal traits Read, Write and WriteRead for I2c.reset_on_drop() and set_reset_on_drop() to Pwm to optionally keep the PWM channel enabled on drop (contributed by @benkard).embedded-hal trait PwmPin for Pwm.embedded-hal traits FullDuplex, Transfer and Write for Spi.README.md, indicating the required minimum rustc version.Gpio, I2c, Pwm and Spi examples to the examples subdirectory.Display formatting for Errors in all modules to include more details when available.DeviceInfo::peripheral_base() and DeviceInfo::gpio_offset() from the public API.Gpio to the new InputPin/OutputPin structs. Access pins through Gpio::get() (contributed by @reitermarkus).IoPin struct which allows mode switching between input, output or an alternate function.Gpio::get() returns an owned unconfigured Pin, which can be used to read the pin's mode and logic level. Convert a Pin to an InputPin, OutputPin or IoPin through the various Pin::into_ methods to access additional functionality.InputPin, OutputPin and IoPin for common tasks.Error::NotInitialized, Error::UnknownMode and Error::InvalidPin (contributed by @reitermarkus).Error::InstanceExists. Multiple (thread-safe) Gpio instances can now exist simultaneously.Error::UnknownSoC to Error::UnknownModel for consistency.Error::PermissionDenied to make it easier to solve file permission issues.Error::PinNotAvailable, returned by Gpio::get() to indicate a pin is already in use, or isn't available on the current Raspberry Pi model.clear_on_drop()/set_clear_on_drop() to reset_on_drop()/set_reset_on_drop() for clarity.Gpio::poll_interrupts() pins input parameter and return type from u8 to &InputPin (contributed by @reitermarkus).reset_on_drop is set to true.Clone for Gpio.Error::UnknownSoC to Error::UnknownModel for consistency.duty_cycle() to pulse_width() and set_duty_cycle() to set_pulse_width() to better reflect the specified value type.enabled() to is_enabled() for more idiomatic predicates.duty_cycle(), set_duty_cycle() and frequency() convenience methods that convert between frequency/duty cycle and period/pulse width.period(), duty_cycle(), polarity() and enabled() caused by whitespace.TransferSegment to Segment.Segment::new() parameters are no longer wrapped in Option. Use Segment::with_read() or Segment::with_write() instead when a full-duplex transfer isn't needed.Segment::with_read() and Segment::with_write() convenience methods for read operations without any outgoing data, or write operations where any incoming data should be discarded.