ESP8266 Community Forum

- Thu Mar 16, 2017 12:31 pm #63797 Hi

I'm trying to use WifiManger, and used AutoConnectWithFeedbackLED as a based, just adding ESP8266WebServer so that I can serve up some information (/test) after it's online. However, I can't open port 80 to the reported IP using my browser. Here's my code:

Code: Select all#include <ESP8266WiFi.h>          //https://github.com/esp8266/Arduino

//needed for library
#include <DNSServer.h>
#include <ESP8266WebServer.h>
#include <WiFiManager.h>          //https://github.com/tzapu/WiFiManager

//for LED status
#include <Ticker.h>

const int ledPin = 5;
const char* ver = "WiFi Manager Test 1.00";

Ticker ticker;
ESP8266WebServer server(80);
unsigned long startTime = 0;

void tick()
{
  //toggle state
  int state = digitalRead(ledPin);  // get the current state of GPIO1 pin
  digitalWrite(ledPin, !state);     // set pin to the opposite state
}

//gets called when WiFiManager enters configuration mode
void configModeCallback (WiFiManager *myWiFiManager) {
  Serial.println("Entered config mode");
  Serial.println(WiFi.softAPIP());
  //if you used auto generated SSID, print it
  Serial.println(myWiFiManager->getConfigPortalSSID());
  //entered config mode, make led toggle faster
  ticker.attach(0.2, tick);
}

void setup() {
  // put your setup code here, to run once:
  Serial.begin(115200);
  startTime=millis();
 
  //set led pin as output
  pinMode(ledPin, OUTPUT);
  // start ticker with 0.5 because we start in AP mode and try to connect
  ticker.attach(0.6, tick);

  //WiFiManager
  //Local intialization. Once its business is done, there is no need to keep it around
  WiFiManager wifiManager;
  //reset settings - for testing
  //wifiManager.resetSettings();

  //set callback that gets called when connecting to previous WiFi fails, and enters Access Point mode
  wifiManager.setAPCallback(configModeCallback);

  //fetches ssid and pass and tries to connect
  //if it does not connect it starts an access point with the specified name
  //here  "AutoConnectAP"
  //and goes into a blocking loop awaiting configuration
  if (!wifiManager.autoConnect()) {
    Serial.println("failed to connect and hit timeout");
    //reset and try again, or maybe put it to deep sleep
    ESP.reset();
    delay(1000);
  }

  //if you get here you have connected to the WiFi
  Serial.println("connected...yeey :)");
  ticker.detach();
  //keep LED on
  digitalWrite(ledPin, LOW);

  server.on("/test", handleTest);
}

void handleTest() {
  int rssi=WiFi.RSSI();
  String wifiSSID=WiFi.SSID();
  String s = "OK.<BR>Uptime: "+String((millis()-startTime) / 1000 / 60 / 60)+" hours"+
    "<BR>WiFi AP: "+String(wifiSSID)+
    "<BR>RSSI: "+String(rssi)+
    "<BR>Version: "+String(ver);
  server.send(200, "text/html", s);
}

void loop() {
  // put your main code here, to run repeatedly:
}

- Thu Mar 16, 2017 2:42 pm #63807 You need to have "server.handleClient();" inside the loop()

- Thu Mar 16, 2017 4:11 pm #63812 Thank you, stupid of me - I would have spent some hours arriving at that conclusion! It's still not working, but I've added wifimanager to the esp8266webserver example and it's working so I just have some silly error somewhere that I can find myself.

Many thanks again.

- Fri Mar 17, 2017 8:54 am #63840 Be aware of not having WiFiManager and ESP8266WebServer on the same port ...