Web_test.ino

#include <Adafruit_ZeroDMA.h>
#include <TFT_eSPI.h>
#include "AtWiFi.h"
#include"Free_Fonts.h"

TFT_eSPI tft;

const char* ssid = "******";
const char* password =  "*******";

void setup() {
    tft.begin();
    tft.setRotation(3);
    tft.fillScreen(TFT_BLACK);

    tft.setCursor(0, 0, 2);
    tft.setTextColor(TFT_WHITE, TFT_BLACK);
    tft.setTextSize(1);
  
    WiFi.mode(WIFI_STA);
    WiFi.disconnect();
    delay(2000);

    WiFi.begin(ssid, password);

    tft.print( "Connecting to WiFi ... " );
    while (WiFi.status() != WL_CONNECTED) {
        delay(500);
    }
    tft.println( "Success" );
}

int LoopCount = 0;
#define WAIT_UNIT 10
#define WAIT_MAX  3000

void loop() {
    tft.fillScreen(TFT_BLACK);
    tft.setCursor(0, 0);

    LoopCount ++;
    tft.print( "#" );
    tft.println( LoopCount );

    const uint16_t port = 80;
    const char* host = "192.168.0.11";

    WiFiClient client;

    tft.print( "Connecting to Web server ... " );
    if (!client.connect(host, port)) {
        tft.println("Failed");
        exit( 0 );
    }
    tft.println( "Success" );

    tft.print( "Sending GET request ... " );
    client.print("GET /test.html\r\n"); // sending HTTP GET request
    tft.println( "Success" );

    int waitloop = 0;

    while (!client.available() && waitloop < WAIT_MAX) {
        waitloop++;
        delay(WAIT_UNIT);
    }
    if (client.available() > 0) {
        tft.print("Responded in ");
        tft.print( waitloop * WAIT_UNIT );
        tft.println("ms.");
        String line = client.readString();
        if ( line.length() != 60 ) {
          tft.println( "Unexpected response" );
          exit( 0 );
        }
        
        line.replace("\r\n", "\n");
        line.replace('\r', '\n');
        tft.println( line );
    } else {
        tft.print("Timed out ");
        tft.print( waitloop * WAIT_UNIT );
        tft.println("ms.");
        exit( 0 );
    }
    client.stop();

    delay( 1000*5 );
}