SSD1306 driver

I2C and SPI (4 wire) driver for the SSD1306 OLED display.

See the announcement blog post for more information.

Documentation

Examples

From examples/image_i2c.rs:

```rust

![no_std]

![no_main]

extern crate cortexm; extern crate cortexmrt as rt; extern crate panicsemihosting; extern crate stm32f1xx_hal as hal;

use cortexmrt::ExceptionFrame; use cortexmrt::{entry, exception}; use embeddedgraphics::image::Image1BPP; use embeddedgraphics::prelude::; use hal::i2c::{BlockingI2c, DutyCycle, Mode}; use hal::prelude::; use hal::stm32; use ssd1306::prelude::*; use ssd1306::Builder;

[entry]

fn main() -> ! { let dp = stm32::Peripherals::take().unwrap(); let mut flash = dp.FLASH.constrain(); let mut rcc = dp.RCC.constrain(); let clocks = rcc.cfgr.freeze(&mut flash.acr); let mut afio = dp.AFIO.constrain(&mut rcc.apb2); let mut gpiob = dp.GPIOB.split(&mut rcc.apb2);

let scl = gpiob.pb8.into_alternate_open_drain(&mut gpiob.crh);
let sda = gpiob.pb9.into_alternate_open_drain(&mut gpiob.crh);

let i2c = BlockingI2c::i2c1(
    dp.I2C1,
    (scl, sda),
    &mut afio.mapr,
    Mode::Fast {
        frequency: 400_000,
        duty_cycle: DutyCycle::Ratio2to1,
    },
    clocks,
    &mut rcc.apb1,
    1000,
    10,
    1000,
    1000,
);

let mut disp: GraphicsMode<_> = Builder::new().connect_i2c(i2c).into();

disp.init().unwrap();
disp.flush().unwrap();

let im = Image1BPP::new(include_bytes!("./rust.raw"), 64, 64).translate(Coord::new(32, 0));

disp.draw(im.into_iter());
disp.flush().unwrap();

loop {}

}

[exception]

fn HardFault(ef: &ExceptionFrame) -> ! { panic!("{:#?}", ef); }

```

License

Licensed under either of

• Apache License, Version 2.0 (LICENSE-APACHE or http://www.apache.org/licenses/LICENSE-2.0)
• MIT license (LICENSE-MIT or http://opensource.org/licenses/MIT)

at your option.

Contribution

Unless you explicitly state otherwise, any contribution intentionally submitted for inclusion in the work by you, as defined in the Apache-2.0 license, shall be dual licensed as above, without any additional terms or conditions.