And an example how to use serial communication on an arduino in C?

Here is an example program in C that demonstrates how to use serial communication on an Arduino:

#include <SoftwareSerial.h>

SoftwareSerial mySerial(10, 11); // RX, TX

void setup() {
  mySerial.begin(9600);
}

void loop() {
  mySerial.println("Hello from Arduino");
  delay(1000);
  if (mySerial.available()) {
    char incomingByte = mySerial.read();
    Serial.println("Received: ");
    Serial.println(incomingByte);
  }
}

In this example, the SoftwareSerial library is used to create a software serial communication object, with RX connected to digital pin 10 and TX connected to digital pin 11. The begin function is used to start the serial communication at a baud rate of 9600. The println function is used to write a string of data to the serial port. The delay function is used to wait for 1000 milliseconds before checking for incoming data. The available function is used to check if there is incoming data, and the read function is used to read incoming data as a single character. The received data is then logged to the Arduino serial monitor.

And an example how to use serial communication on an arduino in Go?

To use serial communication on an Arduino from a Go program, you can use a third-party library such as go-serial. Here is an example program in Go that demonstrates how to use serial communication on an Arduino:

go

package main

import (
	"bufio"
	"log"
	"time"

	serial "github.com/tarm/serial"
)

func main() {
	c := &serial.Config{Name: "/dev/ttyACM0", Baud: 9600}
	s, err := serial.OpenPort(c)
	if err != nil {
		log.Fatal(err)
	}

	_, err = s.Write([]byte("Hello from Go\n"))
	if err != nil {
		log.Fatal(err)
	}

	time.Sleep(100 * time.Millisecond)

	reader := bufio.NewReader(s)
	line, _, err := reader.ReadLine()
	if err != nil {
		log.Fatal(err)
	}

	log.Println("Received:", string(line))

	err = s.Close()
	if err != nil {
		log.Fatal(err)
	}
}

In this example, the serial.OpenPort function is used to open the serial port with the device file /dev/ttyACM0, which is the default device file for the Arduino on Linux systems. The Write function is used to write a string of data to the serial port. The bufio.NewReader function is used to create a buffered reader from the serial port, and the ReadLine function is used to read incoming data as a line of text. The received data is then logged to the console. Finally, the Close function is used to close the serial port when communication is complete.

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