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swaitsandClaude Opus 4.6 3102fc747a feat: add display UI with splash screen, dashboard, and RSSI sparkline 
Implement full SSD1306 OLED display support:
- Splash screen on boot (1.5s) with project name, version, board
- Dashboard showing radio state, config, counters, RSSI/SNR
- RSSI history sparkline (64-sample ring buffer, 2px-wide bars)
- DisplayOn/DisplayOff host commands routed via dedicated channel
- Pure render functions against generic DrawTarget (no hardware coupling)
- Display on/off control bypasses radio task entirely

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-03-29 20:42:54 -06:00

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# Change Log
All notable changes to this project will be documented in this file.
The format is based on [Keep a Changelog](http://keepachangelog.com/)
and this project adheres to [Semantic Versioning](http://semver.org/).
## [Unreleased]
No unreleased changes yet.
## [v1.0.0] - 2023-12-28
- gpio: remove `ToggleableOutputPin`, move `toggle()` to `StatefulOutputPin`.
## [v1.0.0-rc.3] - 2023-12-14
- gpio: require `&mut self` in `InputPin` and `StatefulOutputPin`.
## [v1.0.0-rc.2] - 2023-11-28
- Minor document fixes.
- Add #[inline] hints to most of `embedded-hal` functions.
- pwm: rename `get_max_duty_cycle` to `max_duty_cycle`.
- delay: Rename `DelayUs` to `DelayNs`
- delay: Add `DelayNs::delay_ns()`
- delay: Add default impls of `delay_ms` and `delay_us` based on `delay_ns`.
- delay: Make the default impl of `delay_ms` more efficient, it now does less calls to the underlying `delay_ns` (previously `delay_us`).
- spi: Rename `Operation::DelayUs` to `Operation::DelayNs`, with nanosecond precision.
## [v1.0.0-rc.1] - 2023-08-15
- The Minimum Supported Rust Version (MSRV) is now 1.60.0
- Add optional `defmt` 0.3 support.
- Remove serial traits, the replacement is the `embedded-io` crate.
- Added `+ ?Sized` to all blanket impls.
## [v1.0.0-alpha.11] - 2023-07-04
*** This is (also) an alpha release with breaking changes (sorry) ***
### Added
- spi: added `Operation::DelayUs(u32)`.
### Removed
- spi: removed read-only and write-only traits.
## [v1.0.0-alpha.10] - 2023-04-04
*** This is (also) an alpha release with breaking changes (sorry) ***
### Added
- Added `pwm::SetDutyCycle` trait.
### Changed
- gpio: add `ErrorKind` enum for consistency with other traits and for future extensibility. No kinds are defined for now.
- delay: make infallible.
- i2c: remove `_iter()` methods.
- i2c: add default implementations for all methods based on `transaction()`.
- i2c: document guidelines for shared bus usage.
- spi: SpiDevice transaction now takes an operation slice instead of a closure
## [v1.0.0-alpha.9] - 2022-09-28
*** This is (also) an alpha release with breaking changes (sorry) ***
### Changed
- The `embedded-hal` crate now contains blocking traits only. Import paths no longer contain `::blocking`.
### Added
- Implement `PartialOrd`, `Ord`, `Hash` for `can::StandardId`, `can::ExtendedId` and `can::Id` according to CAN bus arbitration rules
- Implement `Eq` for `i2c::Operation`
- Implement `PartialOrd`, `Ord`, `Hash` for `can::StandardId`, `can::ExtendedId` and `can::Id` according to CAN bus arbitration rules.
### Fixed
- Fixed documentation for `wait_for_rising_edge`.
### Removed
- `digital::blocking::IoPin` traits. See: [#340], [#397].
- `nb` traits are now available in a separate [`embedded-hal-nb`] crate.
- `spi::blocking::ExclusiveDevice` and `spi::blocking::ExclusiveDeviceError`. These have been moved to a separate [`embedded-hal-bus`] crate.
- Moved CAN traits to a separate [`embedded-can`] crate.
[`embedded-can`]: https://crates.io/crates/embedded-can
[`embedded-hal-nb`]: https://crates.io/crates/embedded-hal-nb
[`embedded-hal-bus`]: https://crates.io/crates/embedded-hal-bus
[#340]: https://github.com/rust-embedded/embedded-hal/issues/340
[#397]: https://github.com/rust-embedded/embedded-hal/issues/397
## [v1.0.0-alpha.8] - 2022-04-15
*** This is (also) an alpha release with breaking changes (sorry) ***
### Changed
- The Minimum Supported Rust Version (MSRV) is now 1.59.0
- `spi`: unify all traits into `SpiReadBus`, `SpiWriteBus` and `SpiBus` (read-write).
- `spi`: Add `SpiDevice` trait to represent a single device in a (possibly shared) bus, with managed chip-select (CS) pin.
- `spi`: Clarify that implementations are allowed to return before operations are finished, add `flush` to wait until finished.
### Removed
- ADC traits: `adc::nb::OneShot` and `adc::nb::Channel`.
## [v1.0.0-alpha.7] - 2022-02-09
*** This is (also) an alpha release with breaking changes (sorry) ***
### Added
- `Error` traits for CAN, SPI, I2C and Serial are implemented for `Infallible`.
### Fixed
- Fixed blanket impl of `DelayUs` not covering the `delay_ms` method.
### Changed
- `spi`: traits now enforce all impls on the same struct (e.g. `Transfer` and `Write`) have the same `Error` type.
- `digital`: traits now enforce all impls on the same struct have the same `Error` type.
- `serial`: traits now enforce all impls on the same struct have the same `Error` type.
- `i2c`: traits now enforce all impls on the same struct have the same `Error` type.
- `i2c`: unify all traits into a single `I2c` trait.
### Removed
- Traits with unconstrained associated types and their modules (See: [#324], [#354]):
- `capture::Capture`
- `pwm::Pwm`
- `pwm::PwmPin`
- `qei::Qei`
- `timer::Cancel`
- `timer::CountDown`
- `timer::Periodic`
- `watchdog::Disable`
- `watchdog::Enable`
- `watchdog::Watchdog`
[#324]: https://github.com/rust-embedded/embedded-hal/pull/324/
[#354]: https://github.com/rust-embedded/embedded-hal/pull/354
## [v1.0.0-alpha.6] - 2021-11-19
*** This is (also) an alpha release with breaking changes (sorry) ***
### Changed
- Use `u8` as default SPI as Serial Word type
- The Minimum Supported Rust Version (MSRV) is now 1.46.0
- Require all SPI and Serial word types to be `Copy`.
### Added
- Added `Can` Controller Area Network traits.
- `Error` traits for SPI, I2C and Serial traits. The error types used in those must
implement these `Error` traits, which implies providing a conversion to a common
set of error kinds. Generic drivers using these interfaces can then convert the errors
to this common set to act upon them.
### Removed
- Removed `DelayMs` in favor of `DelayUs` with `u32` as type for clarity.
## [v1.0.0-alpha.5] - 2021-09-11
*** This is (also) an alpha release with breaking changes (sorry) ***
### Added
- Added `IoPin` trait for pins that can change between being inputs or outputs
dynamically.
- Added `Debug` to all spi mode types.
- Add impls of all traits for references (`&T` or `&mut T` depending on the trait) when `T` implements the trait.
- SPI: Added blocking `Read` trait and `Read` transactional operation
- SPI: Added blocking `Transfer` trait with separate buffers (single-buffer `Transfer` has been renamed `TransferInplace`)
### Changed
- Swap PWM channel arguments to references
- All trait methods have been renamed to remove the `try_` prefix (i.e. `try_send` -> `send`) for consistency.
- Moved all traits into two submodules for each feature depending on the execution model: `blocking` and `nb` (non-blocking). For example, the spi traits can now be found under `embedded_hal::spi::blocking` or `embedded_hal::spi::nb`.
- Execution-model-independent definitions have been moved into the feature module. For example, SPI `Phase` is now defined in `embedded_hal::spi::Phase`. For convenience, these definitions are reexported in both of its blocking and non-blocking submodules.
- Re-export `nb::{block!, Error, Result}` to avoid version mismatches. These should be used instead of
importing the `nb` crate directly in dependent crates.
- `blocking::Serial`: renamed `bwrite_all` to `write`, `bflush` to `flush.
- Removed `prelude` to avoid method name conflicts between different flavors (blocking, nb) of the same trait. Traits must now be manually imported.
- Removed the various `Default` marker traits.
- Removed `&[W]` returned slice in `spi::blocking::Transfer`.
- Require all associated error types to implement `core::fmt::Debug`.
### Removed
- Removed random number generation (`rng`) traits in favor of [rand_core](https://crates.io/crates/rand_core).
## [v1.0.0-alpha.4] - 2020-11-11
### Fixed
- Support for I2C addressing modes in `Transactional` I2C traits.
## [v1.0.0-alpha.3] - 2020-11-04
### Added
- `Transactional` SPI interface for executing groups of SPI transactions.
- `Transactional` I2C interface for executing groups of I2C transactions.
## [v1.0.0-alpha.2] - 2020-10-16
*** This is (also) an alpha release with breaking changes (sorry) ***
### Added
- 10-bit addressing mode for I2C traits.
- `try_set_state` method for `OutputPin` using an input `PinState` value.
### Changed
- I2C addressing modes are now selected via an `AddressMode` type parameter.
The trait features implementations for marker types `SevenBitAddress` and
`TenBitAddress`. `SevenBitAddress` is the default mode so this is not a
breaking change.
- The method `try_write` from the trait `blocking::i2c::WriteIter` trait
has been renamed `try_write_iter` for consistency.
- Updated `nb` dependency to version `1`.
- The watchdog API now uses move semantics. See [PR](https://github.com/rust-embedded/embedded-hal/pull/222).
- The ADC `Channel` trait now uses a stateful method to get the IDs.
## [v1.0.0-alpha.1] - 2020-06-16
*** This is an alpha release with breaking changes (sorry) ***
### Added
- A nonblocking trait for interfacing with random number generation hardware.
### Changed
- All traits have been marked as proven (`unproven` feature has been removed).
- All trait methods have been made fallible.
- All trait methods have been renamed `try_*` (i.e. `try_send`) for consistency.
- The `Capture`, `Pwm`, `PwmPin` and `Qei` traits have been moved into their own
`capture`, `pwm` and `qei` modules for consistency.
- Void has been replaced with `core::convert::Infallible` which should be used
in trait implementations where methods cannot fail.
- A new [process](https://github.com/rust-embedded/embedded-hal#how-to-add-a-new-trait)
has been adopted for the addition of traits to the embedded-hal.
- The ADC `Channel` trait now uses a constant to represent the IDs.
- The minimum supported Rust version is 1.35 due to [this issue](https://github.com/rust-lang/rust/issues/54973).
## [v0.2.3] - 2019-05-09
### Added
- A new version of the digital `OutputPin`, `StatefulOutputPin`, `ToggleableOutputPin`
and `InputPin` traits has been added under `digital::v2`. These traits are now
fallible and their methods now return a `Result` type as setting an output pin
and reading an input pin could potentially fail.
See [here](https://github.com/rust-embedded/embedded-hal/issues/95) for more info.
- Compatibility shims between `digital::v1` and `digital::v2` traits allowing v1 traits
to be implicitly promoted to v2, and for v2 traits to be explicitly cast to v1 wrappers.
### Changed
- The current versions of the `OutputPin`, `StatefulOutputPin`, `ToggleableOutputPin`
and `InputPin` traits have been marked as deprecated. Please use the new versions
included in `digital::v2`.
See [here](https://github.com/rust-embedded/embedded-hal/issues/95) for more info.
## [v0.2.2] - 2018-11-03
### Added
- Added the Rust Code of Conduct to this repository
- The first ADC-related trait. This is a simple trait for one-shot conversions.
- Iterator-based blocking write and write+read traits have been added to I2C and SPI.
- New helper constants for SPI modes.
- A new trait for a cancellable countdown.
- New traits for watchdog timer management, including startup, feeding, and stopping.
### Changed
- Updated docs to clarify I2C address bit widths and expectations.
## [v0.2.1] - 2018-05-14
### Changed
- Auto-generated documentation (docs.rs) now includes the unproven traits.
## [v0.2.0] - 2018-05-12
### Added
- A `ToggeableOutputPin` trait has been added. This trait contains a single method: `toggle` that
can be used to toggle the state of a push-pull pin.
### Changed
- [breaking-change] The signature of `CountDown.wait` changed; it now returns `nb::Result<(),
Void>`. Where [`Void`] is the stable alternative to the never type, `!`, provided by the stable
[`void`] crate. Implementations of the `CountDown` trait will have to be updated to use the new
signature. With this change this crate compiles on the stable and beta channels.
[`Void`]: https://docs.rs/void/1.0.2/void/enum.Void.html
[`void`]: https://crates.io/crates/void
- [breaking-change] the `OutputPin.is_{low,high}` methods have been moved into its own trait
`StatefulOutputPin` and renamed to `is_set_{low,high}`.
- It has been clarified in the documentation that `OutputPin` must be implemented for push-pull
output pins (and e.g. not for open drain output pins).
## [v0.1.3] - 2018-05-14
### Changed
- Re-export most / unchanged traits from embedded-hal v0.2.x to allow interoperation between HAL
implementations and drivers that are using different minor versions.
## [v0.1.2] - 2018-02-14
### Added
- Unproven `blocking::serial::*` traits
## [v0.1.1] - 2018-02-06
### Added
- Unproven `digital::InputPin` trait
## v0.1.0 - 2018-01-16
Initial release
[Unreleased]: https://github.com/rust-embedded/embedded-hal/compare/v1.0.0...HEAD
[v1.0.0]: https://github.com/rust-embedded/embedded-hal/compare/v1.0.0-rc.3...v1.0.0
[v1.0.0-rc.3]: https://github.com/rust-embedded/embedded-hal/compare/v1.0.0-rc.2...v1.0.0-rc.3
[v1.0.0-rc.2]: https://github.com/rust-embedded/embedded-hal/compare/v1.0.0-rc.1...v1.0.0-rc.2
[v1.0.0-rc.1]: https://github.com/rust-embedded/embedded-hal/compare/v1.0.0-alpha.11...v1.0.0-rc.1
[v1.0.0-alpha.11]: https://github.com/rust-embedded/embedded-hal/compare/v1.0.0-alpha.10...v1.0.0-alpha.11
[v1.0.0-alpha.10]: https://github.com/rust-embedded/embedded-hal/compare/v1.0.0-alpha.9...v1.0.0-alpha.10
[v1.0.0-alpha.9]: https://github.com/rust-embedded/embedded-hal/compare/v1.0.0-alpha.8...v1.0.0-alpha.9
[v1.0.0-alpha.8]: https://github.com/rust-embedded/embedded-hal/compare/v1.0.0-alpha.7...v1.0.0-alpha.8
[v1.0.0-alpha.7]: https://github.com/rust-embedded/embedded-hal/compare/v1.0.0-alpha.6...v1.0.0-alpha.7
[v1.0.0-alpha.6]: https://github.com/rust-embedded/embedded-hal/compare/v1.0.0-alpha.5...v1.0.0-alpha.6
[v1.0.0-alpha.5]: https://github.com/rust-embedded/embedded-hal/compare/v1.0.0-alpha.4...v1.0.0-alpha.5
[v1.0.0-alpha.4]: https://github.com/rust-embedded/embedded-hal/compare/v1.0.0-alpha.3...v1.0.0-alpha.4
[v1.0.0-alpha.3]: https://github.com/rust-embedded/embedded-hal/compare/v1.0.0-alpha.2...v1.0.0-alpha.3
[v1.0.0-alpha.2]: https://github.com/rust-embedded/embedded-hal/compare/v1.0.0-alpha.1...v1.0.0-alpha.2
[v1.0.0-alpha.1]: https://github.com/rust-embedded/embedded-hal/compare/v0.2.3...v1.0.0-alpha.1
[v0.2.3]: https://github.com/rust-embedded/embedded-hal/compare/v0.2.2...v0.2.3
[v0.2.2]: https://github.com/rust-embedded/embedded-hal/compare/v0.2.1...v0.2.2
[v0.2.1]: https://github.com/rust-embedded/embedded-hal/compare/v0.2.0...v0.2.1
[v0.2.0]: https://github.com/rust-embedded/embedded-hal/compare/v0.1.2...v0.2.0
[v0.1.2]: https://github.com/rust-embedded/embedded-hal/compare/v0.1.1...v0.1.2
[v0.1.1]: https://github.com/rust-embedded/embedded-hal/compare/v0.1.0...v0.1.1
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