diff --git a/examples/epd2in13_v2.rs b/examples/epd2in13_v2.rs new file mode 100644 index 00000000..ac509c3d --- /dev/null +++ b/examples/epd2in13_v2.rs @@ -0,0 +1,167 @@ +#![deny(warnings)] + +use embedded_graphics::{ + fonts::{Font12x16, Font6x8, Text}, + prelude::*, + primitives::{Circle, Line}, + style::PrimitiveStyle, + text_style, +}; +use embedded_hal::prelude::*; +use epd_waveshare::{ + color::*, + epd2in13_v2::{Display2in13, EPD2in13}, + graphics::{Display, DisplayRotation}, + prelude::*, +}; +use linux_embedded_hal::{ + spidev::{self, SpidevOptions}, + sysfs_gpio::Direction, + Delay, Pin, Spidev, +}; + +// activate spi, gpio in raspi-config +// needs to be run with sudo because of some sysfs_gpio permission problems and follow-up timing problems +// see https://github.com/rust-embedded/rust-sysfs-gpio/issues/5 and follow-up issues + +fn main() -> Result<(), std::io::Error> { + // Configure SPI + // Settings are taken from + let mut spi = Spidev::open("/dev/spidev0.0").expect("spidev directory"); + let options = SpidevOptions::new() + .bits_per_word(8) + .max_speed_hz(4_000_000) + .mode(spidev::SpiModeFlags::SPI_MODE_0) + .build(); + spi.configure(&options).expect("spi configuration"); + + // Configure Digital I/O Pin to be used as Chip Select for SPI + let cs = Pin::new(26); //BCM7 CE0 + cs.export().expect("cs export"); + while !cs.is_exported() {} + cs.set_direction(Direction::Out).expect("CS Direction"); + cs.set_value(1).expect("CS Value set to 1"); + + let busy = Pin::new(5); //pin 29 + busy.export().expect("busy export"); + while !busy.is_exported() {} + busy.set_direction(Direction::In).expect("busy Direction"); + //busy.set_value(1).expect("busy Value set to 1"); + + let dc = Pin::new(6); //pin 31 //bcm6 + dc.export().expect("dc export"); + while !dc.is_exported() {} + dc.set_direction(Direction::Out).expect("dc Direction"); + dc.set_value(1).expect("dc Value set to 1"); + + let rst = Pin::new(16); //pin 36 //bcm16 + rst.export().expect("rst export"); + while !rst.is_exported() {} + rst.set_direction(Direction::Out).expect("rst Direction"); + rst.set_value(1).expect("rst Value set to 1"); + + let mut delay = Delay {}; + + let mut epd2in13 = + EPD2in13::new(&mut spi, cs, busy, dc, rst, &mut delay).expect("eink initalize error"); + + //println!("Test all the rotations"); + let mut display = Display2in13::default(); + + display.set_rotation(DisplayRotation::Rotate0); + draw_text(&mut display, "Rotate 0!", 5, 50); + + display.set_rotation(DisplayRotation::Rotate90); + draw_text(&mut display, "Rotate 90!", 5, 50); + + display.set_rotation(DisplayRotation::Rotate180); + draw_text(&mut display, "Rotate 180!", 5, 50); + + display.set_rotation(DisplayRotation::Rotate270); + draw_text(&mut display, "Rotate 270!", 5, 50); + + epd2in13.update_frame(&mut spi, &display.buffer())?; + epd2in13 + .display_frame(&mut spi) + .expect("display frame new graphics"); + delay.delay_ms(5000u16); + + //println!("Now test new graphics with default rotation and some special stuff:"); + display.clear_buffer(Color::White); + + // draw a analog clock + let _ = Circle::new(Point::new(64, 64), 40) + .into_styled(PrimitiveStyle::with_stroke(Black, 1)) + .draw(&mut display); + let _ = Line::new(Point::new(64, 64), Point::new(30, 40)) + .into_styled(PrimitiveStyle::with_stroke(Black, 4)) + .draw(&mut display); + let _ = Line::new(Point::new(64, 64), Point::new(80, 40)) + .into_styled(PrimitiveStyle::with_stroke(Black, 1)) + .draw(&mut display); + + // draw white on black background + let _ = Text::new("It's working-WoB!", Point::new(90, 10)) + .into_styled(text_style!( + font = Font6x8, + text_color = White, + background_color = Black + )) + .draw(&mut display); + + // use bigger/different font + let _ = Text::new("It's working-WoB!", Point::new(90, 40)) + .into_styled(text_style!( + font = Font12x16, + text_color = White, + background_color = Black + )) + .draw(&mut display); + + // Demonstrating how to use the partial refresh feature of the screen. + // Real animations can be used. + epd2in13 + .set_refresh(&mut spi, &mut delay, RefreshLUT::QUICK) + .unwrap(); + epd2in13.clear_frame(&mut spi).unwrap(); + + // a moving `Hello World!` + let limit = 10; + for i in 0..limit { + draw_text(&mut display, " Hello World! ", 5 + i * 12, 50); + + epd2in13 + .update_and_display_frame(&mut spi, &display.buffer()) + .expect("display frame new graphics"); + delay.delay_ms(1_000u16); + } + + // Show a spinning bar without any delay between frames. Shows how «fast» + // the screen can refresh for this kind of change (small single character) + display.clear_buffer(Color::White); + epd2in13 + .update_and_display_frame(&mut spi, &display.buffer()) + .unwrap(); + + let spinner = ["|", "/", "-", "\\"]; + for i in 0..10 { + display.clear_buffer(Color::White); + draw_text(&mut display, spinner[i % spinner.len()], 10, 100); + epd2in13 + .update_and_display_frame(&mut spi, &display.buffer()) + .unwrap(); + } + + println!("Finished tests - going to sleep"); + epd2in13.sleep(&mut spi) +} + +fn draw_text(display: &mut Display2in13, text: &str, x: i32, y: i32) { + let _ = Text::new(text, Point::new(x, y)) + .into_styled(text_style!( + font = Font6x8, + text_color = Black, + background_color = White + )) + .draw(display); +}