UDP.ino

#include <ESP8266WiFi.h>

#include <WiFiUdp.h>

const char* ssid = "esp8266";
const char* password = "imuimuimu";
const char * udpAddress = "192.168.43.18";

const int udpPort = 5000;



String buff;

WiFiUDP udp;
void setup()

{

  Serial.begin(115200);

  Serial.println();
  Serial.printf("Connecting to %s ", ssid);
  WiFi.begin(ssid, password);
  while (WiFi.status() != WL_CONNECTED)

  {

    delay(500);
    Serial.print(".");
  }

  Serial.println(" connected"); 

  Serial.printf("Web server started, open %s in a web browser\n", WiFi.localIP().toString().c_str());

}

void loop()

{

    if(Serial.available()){

    buff = Serial.readStringUntil('\n');

    char charBuf[buff.length() + 1];

    buff.toCharArray(charBuf, buff.length() + 1);

    udp.beginPacket(udpAddress,udpPort);

    udp.printf("%u    %s",millis(),charBuf);

    udp.endPacket();

    }

    

}