app.go

package main

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

// App struct
type App struct {
	ctx context.Context
}

// NewApp creates a new App application struct
func NewApp() *App {
	return &App{}
}

// startup is called at application startup
func (a *App) startup(ctx context.Context) {
	// Perform your setup here
	a.ctx = ctx
}

// domReady is called after front-end resources have been loaded
func (a *App) domReady(ctx context.Context) {
	// Add your action here
}

// beforeClose is called when the application is about to quit,
// either by clicking the window close button or calling runtime.Quit.
// Returning true will cause the application to continue, false will continue shutdown as normal.
func (a *App) beforeClose(ctx context.Context) (prevent bool) {
	return false
}

// shutdown is called at application termination
func (a *App) shutdown(ctx context.Context) {
	// Perform your teardown here
}

// Greet returns a greeting for the given name
func (a *App) Greet(name string) string {

	return fmt.Sprintf("Hello %s, It's show time!", name)
}

func (a *App) ReadSerial() string {
	c := &serial.Config{Name: "/dev/tty.usbmodem1101", Baud: 115200}
	s, err := serial.OpenPort(c)
	if err != nil {
		log.Fatal(err)
	}

	for {
		buf := make([]byte, 64)
		n, err := s.Read(buf)
		if err != nil {
			log.Fatal(err)
		}

		bufferToString := fmt.Sprintf("%s", buf[:n])
		println(bufferToString)
		return bufferToString
	}
	return ""
}