#include <WiFi.h>
#include <WiFiUdp.h>

  
const int serverPort = 5219;

WiFiUDP udp;

void setup() {
  Serial1.begin(115200);
  Serial1.println("Connecting to WiFi...");

  WiFi.begin("Wokwi-GUEST", "");
  while (WiFi.status() != WL_CONNECTED) {
    delay(500);
    Serial1.print(".");
  }

  Serial1.println("\nWiFi connected.");
  Serial1.print("Client IP: ");
  Serial1.println(WiFi.localIP());

  // Start UDP on any available port
  udp.begin(12345);  // Client port
}

void loop() {
  // Send request to server
  Serial1.println("Sending 'GET_H' to server...");

  udp.beginPacket("10.10.0.1", serverPort);
  udp.write("GET_H");
  udp.endPacket();

  // Wait for response
  delay(500);
  int packetSize = udp.parsePacket();

  if (packetSize) {
    char incomingPacket[255];
    int len = udp.read(incomingPacket, 255);
    if (len > 0) incomingPacket[len] = 0;

    Serial1.print("Received from server: ");
    Serial1.println(incomingPacket);
  } else {
    Serial1.println("No response from server.");
  }

  delay(5000);  
}