IO with Arduino

arduino.go

package main

import (
    "fmt"
    "bufio"
    "github.com/tarm/serial"
    "log"
)

type Arduino struct {
        config *serial.Config
}

func NewArduino () *Arduino {
        return &Arduino{
                config: &serial.Config{
                        Name: "/dev/ttyACM0",
                        Baud: 9600,
                },
        }
}

func (a *Arduino) NewPort() *serial.Port {
        p, err := serial.OpenPort(a.config)
        if err != nil {
                log.Fatal("Cannot open port. ", err)
        }
        return p
}

func main() {
        a := NewArduino()
        p := a.NewPort()

        a.write(p)
        a.read(p)
}

func (a *Arduino) read(p *serial.Port) {
        scanner := bufio.NewScanner(p)
        for scanner.Scan() {
                fmt.Println(scanner.Text())
        }
        if scanner.Err() != nil {
                log.Fatal(scanner.Err())
        }
}

func (a *Arduino) write(p *serial.Port) {
        _, err := p.Write([]byte("....."))
        if err != nil {
                log.Fatal(err)
        }
}

read allows you to read Serial output from the Arduino
write allows you to write to the Arduino through the Serial port