m-a-m
April 6, 2023, 8:13pm
1
I am trying to connect my esp32 to my wifi connection but it keeps giving that it is trying to connect and it didnt connect,
The internet connection that I have very strong and the router is beside me.
I tried so many solution from google but it didnt work
#include <Arduino.h>
#include <WiFi.h>
#include <PubSubClient.h>
// WiFi
const char *ssid = "*****"; // Enter your WiFi name
const char *password = "******"; // Enter WiFi password
// MQTT Broker
const char *mqtt_broker = "broker.emqx.io";
const char *topic = "esp32/test";
const char *mqtt_username = "emqx";
const char *mqtt_password = "public";
const int mqtt_port = 1883;
WiFiClient espClient;
PubSubClient client(espClient);
void setup() {
// Set software serial baud to 115200;
Serial.begin(115200);
// connecting to a WiFi network
WiFi.begin(ssid, password);
while (WiFi.status() != WL_CONNECTED) {
delay(500);
Serial.println("Connecting to WiFi..");
}
Serial.println("Connected to the WiFi network");
//connecting to a mqtt broker
client.setServer(mqtt_broker, mqtt_port);
client.setCallback(callback);
while (!client.connected()) {
String client_id = "esp32-client-";
client_id += String(WiFi.macAddress());
Serial.printf("The client %s connects to the public mqtt broker\n", client_id.c_str());
if (client.connect(client_id.c_str(), mqtt_username, mqtt_password)) {
Serial.println("Public emqx mqtt broker connected");
} else {
Serial.print("failed with state ");
Serial.print(client.state());
delay(2000);
}
}
// publish and subscribe
client.publish(topic, "Hi EMQX I'm ESP32 ^^");
client.subscribe(topic);
}
void callback(char *topic, byte *payload, unsigned int length) {
Serial.print("Message arrived in topic: ");
Serial.println(topic);
Serial.print("Message:");
for (int i = 0; i < length; i++) {
Serial.print((char) payload[i]);
}
Serial.println();
Serial.println("-----------------------");
}
void loop() {
client.loop();
}
Presumably your actual sketch has the correct SSID and password
m-a-m
April 6, 2023, 8:19pm
4
Sure I put them correctly and I tried to connect it to different connections but same problem
m-a-m
April 6, 2023, 8:20pm
5
Yes and I got my wifi connection name in the scanning
m-a-m
April 6, 2023, 8:23pm
6
I am trying since two days and I waste much time but unfortunately same problem, I will get insane!!!
ZX80
April 6, 2023, 8:29pm
7
OK now try this
#include "WiFi.h"
const char* ssid = "yourNetworkName"; //choose your wireless ssid
const char* password = "yourNetworkPass"; //put your wireless password here.
void setup() {
Serial.begin(115200);
WiFi.begin(ssid, password);
while (WiFi.status() != WL_CONNECTED) {
delay(500);
Serial.println("Connecting to WiFi..");
}
Serial.println("Connected to the WiFi network");
// Print local IP address and start web server
Serial.println("");
Serial.println("WiFi connected.");
Serial.println("IP address: ");
Serial.println(WiFi.localIP()); //show ip address when connected on serial monitor.
}
void loop() {}
I do the thing this way.
void connectToWiFi()
{
int TryCount = 0;
while ( WiFi.status() != WL_CONNECTED )
{
TryCount++;
WiFi.disconnect();
WiFi.begin( SSID, PASSWORD );
vTaskDelay( 4000 );
if ( TryCount == 10 )
{
ESP.restart();
}
}
WiFi.onEvent( WiFiEvent );
}
m-a-m
April 6, 2023, 8:33pm
9
@ZX80 I tried, I got the same
Connecting to WiFi..
Connecting to WiFi..
Connecting to WiFi..
Connecting to WiFi..
Connecting to WiFi..
Connecting to WiFi..
Connecting to WiFi..
m-a-m
April 6, 2023, 8:39pm
10
@Idahowalker I got the following error:
Compilation error: 'WiFiEvent' was not declared in this scope
Do you know how to solve this error please?
Put a / in front of the offending words.
like this
void connectToWiFi()
{
int TryCount = 0;
while ( WiFi.status() != WL_CONNECTED )
{
TryCount++;
WiFi.disconnect();
WiFi.begin( SSID, PASSWORD );
vTaskDelay( 4000 );
if ( TryCount == 10 )
{
ESP.restart();
}
}
////////////////WiFi.onEvent( WiFiEvent );
}
m-a-m
April 6, 2023, 9:13pm
12
I got nothing in the serial monitor
#include "WiFi.h"
const char *SSID = "****"; // Enter your WiFi name
const char *PASSWORD = "****"; // Enter WiFi passwordvoid connectToWiFi()
void connectToWiFi()
{
int TryCount = 0;
while ( WiFi.status() != WL_CONNECTED )
{
TryCount++;
WiFi.disconnect();
WiFi.begin( SSID, PASSWORD );
vTaskDelay( 4000 );
if ( TryCount == 10 )
{
ESP.restart();
}
}
////////////////WiFi.onEvent( WiFiEvent );
}
void setup() {
Serial.begin(115200);
connectToWiFi();
}
void loop() {}
The serial prints you put in the code did not work? Oh, wait you did not put serial prints to try to troubleshoot your issue. I guess I'll write some debugging code for you. I'll post it as soon as I've written the code. Wait for it.
m-a-m
April 6, 2023, 9:20pm
14
I found this code @Idahowalker
and I got output:
connect to wifi
1
What does that mean? it didnt count more?
#include <Arduino.h>
#include <WiFi.h>
#define WIFI_NETWORK "***"
#define WIFI_PASSWORD "***"
#define WIFI_TIMEOUT_MS 10000
void WiFiEvent(WiFiEvent_t event)
{
Serial.println( "[WiFi-event] event: " + event );
switch (event) {
case SYSTEM_EVENT_WIFI_READY:
Serial.println("WiFi interface ready");
break;
case SYSTEM_EVENT_SCAN_DONE:
Serial.println("Completed scan for access points");
break;
case SYSTEM_EVENT_STA_START:
Serial.println("WiFi client started");
break;
case SYSTEM_EVENT_STA_STOP:
Serial.println("WiFi clients stopped");
break;
case SYSTEM_EVENT_STA_CONNECTED:
Serial.println("Connected to access point");
break;
case SYSTEM_EVENT_STA_DISCONNECTED:
Serial.println("Disconnected from WiFi access point");
break;
case SYSTEM_EVENT_STA_AUTHMODE_CHANGE:
Serial.println("Authentication mode of access point has changed");
break;
case SYSTEM_EVENT_STA_GOT_IP:
Serial.println("Obtained IP address: " + WiFi.localIP() );
break;
case SYSTEM_EVENT_STA_LOST_IP:
Serial.println("Lost IP address and IP address is reset to 0");
// vTaskDelay( 5000 );
// ESP.restart();
break;
case SYSTEM_EVENT_STA_WPS_ER_SUCCESS:
Serial.println("WiFi Protected Setup (WPS): succeeded in enrollee mode");
break;
case SYSTEM_EVENT_STA_WPS_ER_FAILED:
Serial.println("WiFi Protected Setup (WPS): failed in enrollee mode");
// ESP.restart();
break;
case SYSTEM_EVENT_STA_WPS_ER_TIMEOUT:
Serial.println("WiFi Protected Setup (WPS): timeout in enrollee mode");
break;
case SYSTEM_EVENT_STA_WPS_ER_PIN:
Serial.println("WiFi Protected Setup (WPS): pin code in enrollee mode");
break;
case SYSTEM_EVENT_AP_START:
Serial.println("WiFi access point started");
break;
case SYSTEM_EVENT_AP_STOP:
Serial.println("WiFi access point stopped");
// WiFi.mode( WIFI_OFF);
// esp_sleep_enable_timer_wakeup( 1000000 * 2 ); // 1 second times how many seconds wanted
// esp_deep_sleep_start();
break;
case SYSTEM_EVENT_AP_STACONNECTED:
Serial.println("Client connected");
break;
case SYSTEM_EVENT_AP_STADISCONNECTED:
Serial.println("WiFi client disconnected");
break;
case SYSTEM_EVENT_AP_STAIPASSIGNED:
Serial.println("Assigned IP address to client");
break;
case SYSTEM_EVENT_AP_PROBEREQRECVED:
Serial.println("Received probe request");
break;
case SYSTEM_EVENT_GOT_IP6:
Serial.println("IPv6 is preferred");
break;
case SYSTEM_EVENT_ETH_GOT_IP:
Serial.println("Obtained IP address");
break;
default: break;
}
}
void connectToWiFi()
{
int TryCount = 0;
Serial.println( "connect to wifi" );
while ( WiFi.status() != WL_CONNECTED )
{
TryCount++;
WiFi.disconnect();
WiFi.begin(WIFI_NETWORK, WIFI_PASSWORD);
Serial.println( TryCount);
delay(4000);
if ( TryCount == 10 )
{
ESP.restart();
}
}
WiFi.onEvent(WiFiEvent);
}
void setup()
{
Serial.begin(115200);
connectToWiFi();
}
void loop()
{
}
m-a-m
April 6, 2023, 9:31pm
15
I tried another esp32 board it counts to 10 and then restart, but the first one only counts to 1@Idahowalker
why would you want it to count to more than 1?
What's the count for?
Notice how the count is incremented each time the loop tries to make a WiFI connection? Notice how if it gets to 10 it causes a reset? It only counts to 10 when it cannot connect.
It only counts to 1 because?
A, a connection is made.
system
October 3, 2023, 9:51pm
17
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