ESP8266 Community Forum

- Mon Feb 15, 2016 3:02 am #41138 Hi to all! (and a thanks to this community, I've learned a lot reading here and still learning)

I wonder if it possible to use the ESP as server and client simultaneously for example a GET request.
(I'm using a ESP-12E on devkit1)
What I need is while working as a server and responding to requests to GET a page every i.e. 1 hour


the working code of a server is (generic)

Code: Select all#include <ESP8266WiFi.h>
#include <WiFiClient.h>
#include <ESP8266WebServer.h>

/* Set these to your desired credentials. */
const char *ssid = "XXXXXXXX";
const char *password = "XXXXXXXXXXXXXXXXXX";

// Update these with values suitable for your network.
IPAddress ip(192, 168, 1, 10); //Node static IP
IPAddress gateway(192, 168, 1, 1);
IPAddress subnet(255, 255, 255, 0);

ESP8266WebServer server(80);


void setup() {
  delay(1000);
  Serial.begin(9600);

  WiFi.mode(WIFI_STA);
  WiFi.config(ip, gateway, subnet);
  WiFi.begin(ssid, password);
  Serial.println("");

  while (WiFi.status() != WL_CONNECTED) {
    delay(500);
    Serial.print(".");
  }
  Serial.println("done");

  Serial.println("");
  Serial.print("Connected to ");
  Serial.println(ssid);
  Serial.print("IP address: ");
  Serial.println(WiFi.localIP());

  server.on("/", []() {
    delay(5000);
    server.send(200, "text/html", webPage1 + pinstate + webPage2);
  });

  server.begin();
  Serial.println("HTTP server started");
}

void loop() {
  server.handleClient();
}

and it's OK, works as it should..

now the following code is obviously WRONG (while delaying in the loop section the server doesn't respond)

Code: Select all#include <ESP8266WiFi.h>
#include <WiFiClient.h>
#include <ESP8266WebServer.h>

const char *host = "www.example.com";

/* Set these to your desired credentials. */
const char *ssid = "XXXXXXXX";
const char *password = "XXXXXXXXXXXXXXXXXX";

// Update these with values suitable for your network.
IPAddress ip(192, 168, 1, 10); //Node static IP
IPAddress gateway(192, 168, 1, 1);
IPAddress subnet(255, 255, 255, 0);

ESP8266WebServer server(80);


void setup() {
  delay(1000);
  Serial.begin(9600);

  WiFi.mode(WIFI_STA);
  WiFi.config(ip, gateway, subnet);
  WiFi.begin(ssid, password);
  Serial.println("");

  while (WiFi.status() != WL_CONNECTED) {
    delay(500);
    Serial.print(".");
  }
  Serial.println("done");
  Serial.println("");
  Serial.print("Connected to ");
  Serial.println(ssid);
  Serial.print("IP address: ");
  Serial.println(WiFi.localIP());

  server.on("/", []() {
    delay(5000);
    server.send(200, "text/html", webPage1 + pinstate + webPage2);
  });

  server.begin();
  Serial.println("HTTP server started");
}

void loop() {
  server.handleClient();
   
  // Use WiFiClient class to create TCP connections
  WiFiClient client;
  const int httpPort = 80;
  if (!client.connect(host, httpPort)) {
    Serial.println("connection failed");
    return;
  }

  // We now create a URI for the request
  String url = "/";

  Serial.print("Requesting URL: ");
  Serial.println(url);

  // This will send the request to the server
  client.print(String("GET ") + url + " HTTP/1.1\r\n" +
               "Host: " + host + "\r\n" +
               "Connection: close\r\n\r\n");
  delay(10);
  client.flush();
  client.stop();
  delay(3600000);
}

is what I'm seeking doable?

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- Mon Feb 15, 2016 1:09 pm #41184 while awaiting moderation for this post I found a solution that works fine with using TimeAlarms and Alarm.timerRepeat

The quieter you become, the more you are able to hear..
https://nobugsjustfeatures.wordpress.com/
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