init example

also add build script

Author: chux0519

.gitignore

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+/target
+**/*.rs.bk

Cargo.lock

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+[package]
+name = "raspi-oled"
+version = "0.1.0"
+authors = ["chux0519 <[email protected]>"]
+edition = "2018"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
+embedded-graphics = "0.6.0-alpha.2"
+linux-embedded-hal = "0.2.2"
+machine-ip = "0.2.1"
+ssd1306 = "0.3.0-alpha.2"

Cargo.toml

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+#! /bin/sh
+docker run \
+  --volume $PWD:/home/cross/project \
+  --volume $HOME/.cargo/registry:/home/cross/.cargo/registry \
+    ragnaroek/rust-raspberry:1.39.0 \
+    build --release

build.sh

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+use embedded_graphics::fonts::Font6x8;
+use embedded_graphics::prelude::*;
+use embedded_graphics::primitives::{Circle, Line, Rectangle};
+use embedded_graphics::Drawing;
+use linux_embedded_hal::I2cdev;
+use machine_ip;
+use ssd1306::{mode::GraphicsMode, Builder};
+
+fn main() {
+    let i2c = I2cdev::new("/dev/i2c-1").unwrap();
+
+    let mut disp: GraphicsMode<_> = Builder::new().connect_i2c(i2c).into();
+
+    disp.init().unwrap();
+    disp.flush().unwrap();
+
+    disp.draw(Line::new(Point::new(8, 16 + 16), Point::new(8 + 16, 16 + 16)).into_iter());
+    disp.draw(Line::new(Point::new(8, 16 + 16), Point::new(8 + 8, 16)).into_iter());
+    disp.draw(Line::new(Point::new(8 + 16, 16 + 16), Point::new(8 + 8, 16)).into_iter());
+
+    disp.draw(Rectangle::new(Point::new(48, 16), Point::new(48 + 16, 16 + 16)).into_iter());
+
+    disp.draw(Circle::new(Point::new(96, 16 + 8), 8).into_iter());
+
+    let local_addr = machine_ip::get().unwrap();
+
+    disp.draw(
+        Font6x8::render_str(&format!("IP: {}", local_addr.to_string()))
+            .translate(Point::new(0, 56))
+            .into_iter(),
+    );
+
+    disp.flush().unwrap();
+}