Reading Serial Port Data in Golang: A Complete Guide

1 year ago
Jackson Davis
1 minute

In Go language, you can use the third-party library github.com/tarm/serial to read serial port data. First, you need to install this library.

go get github.com/tarm/serial

You can then use the following code to read serial data:

package main

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

func main() {
	c := &serial.Config{Name: "/dev/ttyUSB0", Baud: 9600}
	s, err := serial.OpenPort(c)
	if err != nil {
		log.Fatal(err)
	}
	defer s.Close()

	buf := make([]byte, 128)
	for {
		n, err := s.Read(buf)
		if err != nil {
			log.Fatal(err)
		}
		fmt.Printf("Received %v bytes: %v\n", n, buf[:n])
	}
}

The code will continuously read serial port data and print the received byte data. You can modify the serial port name and baud rate based on specific serial port configuration.

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