v0.22.1

• Update example documentation to be compatible with both older and newer Pi models.

v0.22.0

• Pwm: (Breaking change) Add support for Pwm2 and Pwm3.
• Pwm: On Raspberry Pi 5 and later models, the PWM channel mapping has changed to be consistent with sysfs numbering. Pwm0 = GPIO12, Pwm1 = GPIO13, Pwm2 = GPIO18, Pwm3 = GPIO19.
• Pwm: Add with_pwmchip to address PWM channels outside of the default configuration.

v0.21.0

• Add support for Raspberry Pi Compute Module 5 Lite.
• Add support for Raspberry Pi 500.
• Pwm: (Breaking change) Add InvalidChannel error.
• Pwm: Add TryFrom<u8> implementation for Channel.

v0.20.0

• Add support for Raspberry Pi Compute Module 5.
• Gpio: Add set_bias to InputPin (contributed by @KronsyC).
• Gpio: Add shared state button example (contributed by @CosminPerRam).
• Spi: Fix embedded HAL SimpleHalSpiDevice transactions to keep CS low between operations (contributed by @whatisbyandby).
• Spi: (Breaking change) Change SimpleHalSpiDevice::new() to require an Spi instance, instead of a generic HAL bus (contributed by @whatisbyandby).
• Uart: Check if /dev/ttyAMA0 exists and fall back to /dev/serial0 when calling new() on Raspberry Pi 5 or Compute Module 5.

v0.19.0

• Gpio: Add Event struct, containing interrupt event details.
• Gpio: (Breaking change) Add optional debounce argument to set_interrupt and set_async_interrupt.
• Gpio: (Breaking change) Return an Event struct when an interrupt is triggered, instead of Level.

v0.18.0

• Gpio: (Breaking change) Add support for mode Null for uninitialized (FUNCSEL 31 (NULL)) pins on Raspberry Pi 5 (contributed by @lukeburong).
• Gpio: Fix InputPin mode not getting set correctly for uninitialized pins on Raspberry Pi 5 (contributed by @lukeburong).
• Pwm: (Breaking change) Add Error::UnknownModel.
• Pwm: Fix support for hardware PWM on Raspberry Pi 5, caused by incorrect PWM chip/channel.

v0.17.1

• Fix is_low implementation for embedded_hal::digital::InputPin (contributed by @TeyKey1).

v0.17.0

• (Breaking change) Update embedded-hal to v1.0.0 (contributed by @reitermarkus).

v0.16.1

• Minor documentation changes.

v0.16.0

• (Breaking change) Update embedded-hal to v1.0.0-rc.2 (contributed by @reitermarkus).
• (Breaking change) Update embedded-hal to v1.0.0-rc.1 (contributed by @mbuesch).
• (Breaking change) Change Minimum Supported Rust Version (MSRV) to v1.60.0.
• Remove Hardware field check in /proc/cpuinfo.
• Fix device recognition for Raspberry PI Zero 2 W (2021) on Arch Linux (contributed by @denisandroid).