Initial commit

.gitignore

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+/target
+**/*.rs.bk
+
+Cargo.lock

Cargo.toml

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+[package]
+name = "macroboard"
+version = "0.1.0"
+authors = ["hodasemi <michaelh.95@t-online.de>"]
+edition = "2018"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
+serial = "*"
+utilities = { git = "http://dimov.cloud:80/hodasemi/Context.git" }

src/main.rs

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+use serial;
+use serial::prelude::*;
+
+use utilities::prelude::*;
+
+use std::ffi::OsStr;
+use std::time::Duration;
+
+fn main() -> VerboseResult<()> {
+    let mut port = open("/dev/ttyACM0")?;
+
+    write(&mut port, "hello world")?;
+    let msg = read(&mut port)?;
+
+    println!("{}", msg);
+
+    Ok(())
+}
+
+fn open<T: AsRef<OsStr> + ?Sized>(port: &T) -> VerboseResult<impl SerialPort> {
+    let mut port = serial::open(port).map_err(|_| "could not open serial port")?;
+
+    port.reconfigure(&|port_settings| {
+        port_settings.set_baud_rate(serial::Baud9600)?;
+
+        port_settings.set_char_size(serial::Bits8);
+        port_settings.set_parity(serial::ParityNone);
+        port_settings.set_stop_bits(serial::Stop1);
+        port_settings.set_flow_control(serial::FlowNone);
+
+        Ok(())
+    })
+    .map_err(|_| "failed configuring serial port")?;
+
+    port.set_timeout(Duration::from_millis(1000))
+        .map_err(|_| "failed setting time out for serial port")?;
+
+    Ok(port)
+}
+
+fn read<T: SerialPort>(port: &mut T) -> VerboseResult<String> {
+    let mut buf: Vec<u8> = (0..255).collect();
+
+    port.read(&mut buf[..])
+        .map_err(|_| "failed reading serial port")?;
+
+    Ok(String::from_utf8(buf).map_err(|_| "failed converting utf8 buffer")?)
+}
+
+fn write<T: SerialPort>(port: &mut T, msg: &str) -> VerboseResult<()> {
+    port.write(msg.as_bytes())
+        .map_err(|_| "failed writing to serial port")?;
+
+    Ok(())
+}