http_test.ino

/*
 * Created by ArduinoGetStarted.com
 *
 * This example code is in the public domain
 *
 * Tutorial page: https://arduinogetstarted.com/tutorials/arduino-web-server
 */

#include <WiFiS3.h>

const char ssid[] = "";  // change your network SSID (name)
const char pass[] = "";   // change your network password (use for WPA, or use as key for WEP)

int status = WL_IDLE_STATUS;

WiFiServer server(80);


void outputValues(float values2Output[], int arrSize) {

  WiFiClient client = server.available();
  if (client) {
    // read the HTTP request header line by line
    while (client.connected()) {
      if (client.available()) {
        String HTTP_header = client.readStringUntil('\n');  // read the header line of HTTP request

        if (HTTP_header.equals("\r"))  // the end of HTTP request
          break;

        Serial.print("<< ");
        Serial.println(HTTP_header);  // print HTTP request to Serial Monitor
      }
    }

    // send the HTTP response
    // send the HTTP response header
    client.println("HTTP/1.1 200 OK");
    client.println("Content-Type: text/plain");
    client.println("Connection: close");  // the connection will be closed after completion of the response
    client.println();                     // the separator between HTTP header and body
    // send the HTTP response body
    for (int i = 0 ; i < arrSize ; i++) {
      client.println(values2Output[i], 2);
    }
    client.flush();

    // close the connection:
    client.stop();
  }

}
void setup() {
  //Initialize serial and wait for port to open:
  Serial.begin(9600);

  // attempt to connect to WiFi network:
  while (status != WL_CONNECTED) {
    Serial.print("Attempting to connect to SSID: ");
    Serial.println(ssid);
    // Connect to WPA/WPA2 network. Change this line if using open or WEP network:
    status = WiFi.begin(ssid, pass);

    // wait 10 seconds for connection:
    delay(10000);
  }
  server.begin();
}

void loop() {
  // listen for incoming clients
  float arr[] = {2,4,2,1};
  outputValues(arr, 4);
}