ESP8266 x Unity Game - Curl Error

Projects Programming
3

Okay, my bad, sorry, before I list the full code, what I want to achieve is: send a string, with the button state, from nodemcu to unity and print it in the console. But I want to send a string to the web server only when the button state changes, and also when I request the string from the server in the Unity Game, I want to request only when there's a change. Like now I get the Curl Error with to many request or something, and I want to bypass that.. Thank you for your time, it really means a lot :slight_smile:
Here's the full code of both:
NodeMCU:

#include <ESP8266WiFi.h>
#include <ESP8266WebServer.h>

/*Put your SSID & Password*/
const char* ssid = "xxx";  // Enter SSID here
const char* password = "xxx";  //Enter Password here

ESP8266WebServer server(80);

uint8_t ledPin = D1;
uint8_t buttonPin = D2;
uint8_t buttonStatus = 0, buttonLastStatus = 0;
uint8_t buttonState = 0;
void setup() 
{
  Serial.begin(9600);
  delay(100);
  pinMode(ledPin, OUTPUT);
  pinMode(buttonPin, INPUT);
  Serial.println("Connecting to ");
  Serial.println(ssid);

  //connect to your local wi-fi network
  WiFi.begin(ssid, password);

  //check wi-fi is connected to wi-fi network
  while (WiFi.status() != WL_CONNECTED) 
  {
    delay(1000);
    Serial.print(".");
  }
  Serial.println("");
  Serial.println("WiFi connected..!");
  Serial.print("Got IP: ");  
  Serial.println(WiFi.localIP());
  
  server.on("/", serverHandler);
  server.begin();
  Serial.println("HTTP server started");
}
void loop() 
{
  server.handleClient();
  buttonStatus = digitalRead(buttonPin);
  if (buttonStatus && !buttonLastStatus)
  {
    digitalWrite(ledPin, HIGH);
    Serial.println("Button Status: ON");
    buttonState = 1;
    
  }
  else if (!buttonStatus && buttonLastStatus)
  {
    digitalWrite(ledPin, LOW);
    Serial.println("Button Status: OFF");
    buttonState = 0;
  }
  buttonLastStatus = buttonStatus;
  delay(250);
}

void serverHandler() 
{
  server.send(200, "text/html", SendHTML(buttonState));
}

String SendHTML(uint8_t buttonCurrentState)
{
  String ptr;
  if(buttonCurrentState) ptr = "1";
  else ptr = "0";
  return ptr;
}

Unity Game code:

using UnityEngine;
using UnityEngine.Networking;
using System.Collections;
using System;
// UnityWebRequest.Get example

// Access a website and use UnityWebRequest.Get to download a page.
// Also try to download a non-existing page. Display the error.

public class web : MonoBehaviour
{
    string webString;
    void Start()
    {
        StartCoroutine(GetRequest("http://192.168.100.58/"));
    }

    IEnumerator GetRequest(string uri)
    {
        UnityWebRequest uwr = UnityWebRequest.Get(uri);
        yield return uwr.SendWebRequest();
        
        if (uwr.isNetworkError)
        {
            Debug.Log("Error While Sending: " + uwr.error);
        }
        else
        {
            webString = uwr.downloadHandler.text;
            Debug.Log("Received: " + webString);
        }
    }
    void Update()
    {
        StartCoroutine(GetRequest("http://192.168.100.58/"));
    }
}