WiFiManager
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tzapu
Cannot ping or connect to the ESP32 (via socket) using the hostname
Basic Infos
Hardware
WiFimanager Branch/Release: v2.0.10-beta+sha.b7ca079
Esp8266/Esp32:
Hardware: ESP32-WROOM-32UE
Description
I cant get the hostname to work with the wifimanager it reports back the right hostname in the output but i cannot ping my ESP32 nor connect to it via socket using the hostname (this works fine using default WiFi.h lib for ESP32)
Settings in IDE
platformio.ini
[env:esp32dev]
platform = espressif32
board = esp32dev
framework = arduino
monitor_speed = 115200
upload_speed = 921600
build_type = debug
monitor_filters = esp32_exception_decoder
build_flags =
-D VERSION=1.0.0
-std=gnu++17
-Ofast
lib_deps =
fastled/FastLED
links2004/WebSockets
bblanchon/ArduinoJson
https://github.com/tzapu/WiFiManager
khoih-prog/ESP_DoubleResetDetector
lib_compat_mode = strict
Sketch
#BEGIN
#pragma once
#include <Arduino.h>
#include <WiFi.h>
#include <WiFiClientSecure.h>
#include <globals.h>
#include <secrets.h>
#include "BluetoothSerial.h"
#define ESP_DRD_USE_SPIFFS true
#define DOUBLERESETDETECTOR_DEBUG true
//#include <FS.h>
#include <SPIFFS.h>
#include <WiFiManager.h>
#include <ESP_DoubleResetDetector.h>
#include <ArduinoJson.h>
#define JSON_CONFIG_FILE "/sample_config.json"
// Number of seconds after reset during which a
// subseqent reset will be considered a double reset.
#define DRD_TIMEOUT 10
// RTC Memory Address for the DoubleResetDetector to use
#define DRD_ADDRESS 0
DoubleResetDetector *drd;
bool shouldSaveConfig = false;
char HostNameString[50];
void saveConfigFile()
{
debug.info("[NETWORK]", "[JSON]", "Saving config");
StaticJsonDocument<512> json;
json["HostNameString"] = HostNameString;
File configFile = SPIFFS.open(JSON_CONFIG_FILE, "w");
if (!configFile)
{
debug.error("[NETWORK]", "[JSON]", "Failed to open config file for writing");
}
serializeJsonPretty(json, Serial);
if (serializeJson(json, configFile) == 0)
{
debug.error("[NETWORK]", "[JSON]", "Failed to write to file");
}
configFile.close();
}
bool loadConfigFile()
{
//clean FS, for testing
//SPIFFS.format();
//read configuration from FS json
debug.info("[NETWORK]", "[JSON]", "Mounting FS...");
// May need to make it begin(true) first time you are using SPIFFS
// NOTE: This might not be a good way to do this! begin(true) reformats the spiffs
// it will only get called if it fails to mount, which probably means it needs to be
// formatted, but maybe dont use this if you have something important saved on spiffs
// that can't be replaced.
if (SPIFFS.begin(false) || SPIFFS.begin(true))
{
debug.success("[NETWORK]", "[JSON]", "Mounted file system");
if (SPIFFS.exists(JSON_CONFIG_FILE))
{
//file exists, reading and loading
debug.info("[NETWORK]", "[JSON]", "Reading config file");
File configFile = SPIFFS.open(JSON_CONFIG_FILE, "r");
if (configFile)
{
debug.success("[NETWORK]", "[JSON]", "Opened config file");
StaticJsonDocument<512> json;
DeserializationError error = deserializeJson(json, configFile);
serializeJsonPretty(json, Serial);
if (!error)
{
debug.info("[NETWORK]", "[JSON]", "Parsed json");
strcpy(HostNameString, json["HostNameString"]);
return true;
}
else
{
debug.error("[NETWORK]", "[JSON]", "Failed to load json config");
}
}
}
}
else
{
debug.error("[NETWORK]", "[JSON]", "Failed to mount FS");
}
//end read
return false;
}
void saveConfigCallback()
{
debug.warning("[NETWORK]", "[JSON]", "Should save config");
shouldSaveConfig = true;
}
namespace network
{
#if ENABLE_WIFI
namespace wifi
{
void begin()
{
pinMode( WIFI_LED_PIN, OUTPUT );
bool forceConfig = false;
drd = new DoubleResetDetector(DRD_TIMEOUT, DRD_ADDRESS);
if (drd->detectDoubleReset())
{
debug.info("[DOUBLEDETECTION]", "[DRD]", "Forcing config mode as there was a Double reset detected");
forceConfig = true;
}
bool spiffsSetup = loadConfigFile();
if (!spiffsSetup)
{
debug.info("[DOUBLEDETECTION]", "[SPIFFS]", "Forcing config mode as there is no saved config");
forceConfig = true;
}
WiFi.mode( WIFI_STA ); // explicitly set mode, esp defaults to STA+AP
WiFiManager wm;
//wm.resetSettings();
wm.setHostname( HostNameString );
WiFi.setHostname( HostNameString );
wm.setSaveConfigCallback(saveConfigCallback);
WiFiManagerParameter custom_host_name("hostname", "Enter a Hostname here", HostNameString, 50);
wm.addParameter(&custom_host_name);
if (forceConfig)
{
if (!wm.startConfigPortal("Mythical-Neon-Controller", "12345678"))
{
debug.info("[WIFIMANAGER]", "[AP]", "failed to connect and hit timeout");
delay(3000);
//reset and try again, or maybe put it to deep sleep
ESP.restart();
delay(5000);
}
}
else
{
if (!wm.autoConnect( HostNameString, wm.getWiFiPass().c_str()))
{
debug.info("[WIFIMANAGER]", "[AUTOCONNECT]", "failed to connect");
delay(3000);
// if we still have not connected restart and try all over again
ESP.restart();
delay(5000);
}
else
{
debug.success("[NETWORK]", "[WIFI]", "WiFi Online!");
debug.info("[NETWORK]", "[WIFI]", "IP : %s", WiFi.localIP().toString().c_str());
debug.info("[NETWORK]", "[WIFI]", "WiFi Hostname : %s", WiFi.getHostname());
debug.info("[NETWORK]", "[WIFI]", "WM Hostname : %s", wm.getWiFiHostname().c_str());
debug.info("[NETWORK]", "[WIFI]", "String Hostname : %s", HostNameString);
digitalWrite( WIFI_LED_PIN, HIGH );
}
}
strncpy(HostNameString, custom_host_name.getValue(), sizeof(HostNameString));
if (shouldSaveConfig)
{
saveConfigFile();
}
}
}
#endif
}
#END
Debug Messages
-------------------------------------------------------------------------------------
- NETWORK Startup -
-------------------------------------------------------------------------------------
SPIFFS Flag read = 0xD0D04321
No doubleResetDetected
Saving config file...
Saving config file OK
[I][NETWORK][JSON] Mounting FS...
[S][NETWORK][JSON] Mounted file system
[I][NETWORK][JSON] Reading config file
[S][NETWORK][JSON] Opened config file
{
"HostNameString": "testmachine"
}
[I][NETWORK][JSON] Parsed json
*wm:[2] Added Parameter: hostname
*wm:[1] AutoConnect
*wm:[2] ESP32 event handler enabled
*wm:[2] Setting Hostnames: testmachine
*wm:[2] Setting WiFi hostname
*wm:[2] Connecting as wifi client...
*wm:[2] setSTAConfig static ip not set, skipping
*wm:[1] Connecting to SAVED AP: Le’s
*wm:[1] connectTimeout not set, ESP waitForConnectResult...
*wm:[2] Connection result: WL_CONNECTED
*wm:[1] AutoConnect: SUCCESS
*wm:[2] Connected in 4126 ms
*wm:[1] STA IP Address: 192.168.68.122
[S][NETWORK][WIFI] WiFi Online!
[I][NETWORK][WIFI] IP : 192.168.68.122
[I][NETWORK][WIFI] WiFi Hostname : testmachine
[I][NETWORK][WIFI] WM Hostname : testmachine
[I][NETWORK][WIFI] String Hostname : testmachine
-------------------------------------------------------------------------------------
- Websocket Startup -
-------------------------------------------------------------------------------------
[S][SOCKET][STATUS] Websocket Online!
// #define WM_MDNS // includes MDNS, also set MDNS with sethostname
It is not enabled by default
wifi hostname is different than mdns
MDNS will only work if your network allows mdns broadcasts across network, otherwise it will only resolve on the same wifi
oh i need to enable MDNS?
Do i set it befor or after #include <WiFiManager.h> ?
you cannot set it in your sketch, you can do it in your environment or boards file or modify the wm.h file
if you use ota, on esp32 this is automatically handled I think
yea i plan to use OTA but yea i wanted to fix this hostname issue
so i uncommented #define WM_MDNS // includes MDNS, also set MDNS with sethostname
is there anything else i would need to set or do?
added this also
if(!MDNS.begin( HostNameString ))
{
debug.error("[MDNS]", "[SETUP]", "Error starting mDNS");
return;
}
else
{
debug.success("[MDNS]", "[SETUP]", "mDNS Started");
}
but still not working
i realy wanna use WifiManager but if the hostname does not work :/ i need to find other if any
I tried testing this but my router was messed up, ill try again. Last time I checked it worked fine though.
I tried testing this but my router was messed up, ill try again. Last time I checked it worked fine though.
https://cdn.discordapp.com/attachments/537365760008257569/967822241456849096/278949010_699082621339260_3346299735419732370_n.jpg
cause i can see ny ESP32 on my router with the hostname "testmachine"...
ok then are you on the same network when you try to find it?
testmachine.local or whatever?
MDNS is only valid on same vlan unless you have a router that has multicast forwarding on
Also you are calling autoconnect right?
ok then are you on the same network when you try to find it?
Yes
Also you are calling autoconnect right?
if (!wm.autoConnect( HostNameString, wm.getWiFiPass().c_str()))
{
debug.info("[WIFIMANAGER]", "[AUTOCONNECT]", "failed to connect");
delay(3000);
// if we still have not connected restart and try all over again
ESP.restart();
delay(5000);
}
else
{
debug.success("[NETWORK]", "[WIFI]", "WiFi Online!");
debug.info("[NETWORK]", "[WIFI]", "IP : %s", WiFi.localIP().toString().c_str());
debug.info("[NETWORK]", "[WIFI]", "WiFi Hostname : %s", WiFi.getHostname());
debug.info("[NETWORK]", "[WIFI]", "WM Hostname : %s", wm.getWiFiHostname().c_str());
debug.info("[NETWORK]", "[WIFI]", "String Hostname : %s", HostNameString);
digitalWrite( WIFI_LED_PIN, HIGH );
}
ok not a mdns problem probably, I was confused for a second and assumed it was not DNS, Since hostname gets set in autoconnect, its possible that its broken when saving from configportal, workaround would be to restart after save.
Since we only set hostname in autoconnect, it might not be still set on save connect which used a different code
Can you confirm that it only is broken when saving? or is it never working?
cause mine does
Maybe string is broken? try harcoding char?
bool WiFiManager::setHostname(const char * hostname){
//@todo max length 32
_hostname = String(hostname);
return true;
}
bool WiFiManager::setHostname(String hostname){
//@todo max length 32
_hostname = hostname;
return true;
}
Can you confirm that it only is broken when saving? or is it never working?
Never working
try harcoding char?
Tried and not working
what esp version ?
Do you mean software version or hardware?
HW : ESP32-WROOM-32UE SW : v4.4-dev-3569-g6a7d83af19-dirty
Yeah just tested works fine also, must be something else going on
*wm:[1] ESP SDK version: v4.4-beta1-308-gf3e0c8bc41
#include <WiFiManager.h> // https://github.com/tzapu/WiFiManager
void setup() {
WiFi.mode(WIFI_STA); // explicitly set mode, esp defaults to STA+AP
Serial.begin(115200);
WiFiManager wm;
wm.setHostname("WM_TESTDNS");
bool res;
res = wm.autoConnect("AutoConnectAP","password"); // password protected ap
if(!res) {
Serial.println("Failed to connect");
// ESP.restart();
}
else {
//if you get here you have connected to the WiFi
Serial.println("connected...yeey :)");
}
}
void loop() {
// put your main code here, to run repeatedly:
}
@tablatronix hmmm weeeeird!
My Entire code as of now using wm.setHostname( "testmachine" );
#pragma once
#include <Arduino.h>
#include <WiFi.h>
#include <WiFiClientSecure.h>
#include <globals.h>
#include <secrets.h>
#include "BluetoothSerial.h"
#define ESP_DRD_USE_SPIFFS true
//#define WM_MDNS true
#define DOUBLERESETDETECTOR_DEBUG true
//#include <FS.h>
#include <SPIFFS.h>
#include <WiFiManager.h>
#include <ESP_DoubleResetDetector.h>
#include <ArduinoJson.h>
#define JSON_CONFIG_FILE "/sample_config.json"
// Number of seconds after reset during which a
// subseqent reset will be considered a double reset.
#define DRD_TIMEOUT 10
// RTC Memory Address for the DoubleResetDetector to use
#define DRD_ADDRESS 0
DoubleResetDetector *drd;
bool shouldSaveConfig = false;
char HostNameString[50];
const char * hostname = "testmachine2";
void saveConfigFile()
{
debug.info("[NETWORK]", "[JSON]", "Saving config");
StaticJsonDocument<512> json;
json["HostNameString"] = HostNameString;
File configFile = SPIFFS.open(JSON_CONFIG_FILE, "w");
if (!configFile)
{
debug.error("[NETWORK]", "[JSON]", "Failed to open config file for writing");
}
serializeJsonPretty(json, Serial);
if (serializeJson(json, configFile) == 0)
{
debug.error("[NETWORK]", "[JSON]", "Failed to write to file");
}
configFile.close();
}
bool loadConfigFile()
{
//clean FS, for testing
//SPIFFS.format();
//read configuration from FS json
debug.info("[NETWORK]", "[JSON]", "Mounting FS...");
// May need to make it begin(true) first time you are using SPIFFS
// NOTE: This might not be a good way to do this! begin(true) reformats the spiffs
// it will only get called if it fails to mount, which probably means it needs to be
// formatted, but maybe dont use this if you have something important saved on spiffs
// that can't be replaced.
if (SPIFFS.begin(false) || SPIFFS.begin(true))
{
debug.success("[NETWORK]", "[JSON]", "Mounted file system");
if (SPIFFS.exists(JSON_CONFIG_FILE))
{
//file exists, reading and loading
debug.info("[NETWORK]", "[JSON]", "Reading config file");
File configFile = SPIFFS.open(JSON_CONFIG_FILE, "r");
if (configFile)
{
debug.success("[NETWORK]", "[JSON]", "Opened config file");
StaticJsonDocument<512> json;
DeserializationError error = deserializeJson(json, configFile);
serializeJsonPretty(json, Serial);
if (!error)
{
debug.info("[NETWORK]", "[JSON]", "Parsed json");
strcpy(HostNameString, json["HostNameString"]);
return true;
}
else
{
debug.error("[NETWORK]", "[JSON]", "Failed to load json config");
}
}
}
}
else
{
debug.error("[NETWORK]", "[JSON]", "Failed to mount FS");
}
//end read
return false;
}
void saveConfigCallback()
{
debug.warning("[NETWORK]", "[JSON]", "Should save config");
shouldSaveConfig = true;
}
namespace network
{
#if ENABLE_WIFI
namespace wifi
{
void begin()
{
pinMode( WIFI_LED_PIN, OUTPUT );
bool forceConfig = false;
drd = new DoubleResetDetector(DRD_TIMEOUT, DRD_ADDRESS);
if (drd->detectDoubleReset())
{
debug.info("[DOUBLEDETECTION]", "[DRD]", "Forcing config mode as there was a Double reset detected");
forceConfig = true;
}
bool spiffsSetup = loadConfigFile();
if (!spiffsSetup)
{
debug.info("[DOUBLEDETECTION]", "[SPIFFS]", "Forcing config mode as there is no saved config");
forceConfig = true;
}
WiFi.mode( WIFI_STA ); // explicitly set mode, esp defaults to STA+AP
WiFiManager wm;
wm.setHostname( "testmachine" );
//wm.resetSettings();
/*
if(!MDNS.begin( HostNameString ))
{
debug.error("[MDNS]", "[SETUP]", "Error starting mDNS");
return;
}
else
{
debug.success("[MDNS]", "[SETUP]", "mDNS Started");
}
*/
//wm.setConnectTimeout(60);
//wm.setTimeout(120);
//wm.setConfigPortalTimeout(120);
wm.setSaveConfigCallback(saveConfigCallback);
WiFiManagerParameter custom_host_name("hostname", "Enter a Hostname here", HostNameString, 50);
wm.addParameter(&custom_host_name);
if (forceConfig)
{
if (!wm.startConfigPortal("Mythical-Neon-Controller", "12345678"))
{
debug.info("[WIFIMANAGER]", "[AP]", "failed to connect and hit timeout");
delay(3000);
//reset and try again, or maybe put it to deep sleep
ESP.restart();
delay(5000);
}
}
bool res;
res = wm.autoConnect();
if (!res)
{
debug.info("[WIFIMANAGER]", "[AUTOCONNECT]", "failed to connect");
delay(3000);
// if we still have not connected restart and try all over again
ESP.restart();
delay(5000);
}
else
{
debug.success("[NETWORK]", "[WIFI]", "WiFi Online!");
debug.info("[NETWORK]", "[WIFI]", "IP : %s", WiFi.localIP().toString().c_str());
debug.info("[NETWORK]", "[WIFI]", "WiFi Hostname : %s", WiFi.getHostname());
debug.info("[NETWORK]", "[WIFI]", "WM Hostname : %s", wm.getWiFiHostname().c_str());
debug.info("[NETWORK]", "[WIFI]", "String Hostname : %s", HostNameString);
digitalWrite( WIFI_LED_PIN, HIGH );
}
strncpy(HostNameString, custom_host_name.getValue(), sizeof(HostNameString));
if (shouldSaveConfig)
{
saveConfigFile();
}
/*
WiFi.mode( WIFI_STA );
WiFi.setSleep ( false );
WiFi.setHostname( "testmachine" ); // Config[DEVICE].Wifi_DNS
WiFi.begin( WIFI_SSID, WIFI_PASS );
for (uint iPass = 0; iPass < 10; iPass++)
{
if( WiFi.status() == WL_CONNECTED )
{
debug.success("[NETWORK]", "[WIFI]", "WiFi Online!");
debug.info("[NETWORK]", "[WIFI]", "IP : %s", WiFi.localIP().toString().c_str());
debug.info("[NETWORK]", "[WIFI]", "Hostname : %s", WiFi.getHostname());
digitalWrite( WIFI_LED_PIN, HIGH );
break;
}
else
{
delay( 500 );
digitalWrite( WIFI_LED_PIN, HIGH );
delay ( 500 );
digitalWrite( WIFI_LED_PIN, LOW );
}
}
*/
}
}
#endif
namespace ble
{
#if ENABLE_BLE
#if !defined(CONFIG_BT_ENABLED) || !defined(CONFIG_BLUEDROID_ENABLED)
#error Bluetooth is not enabled! Please run `make menuconfig` to and enable it
#endif
BluetoothSerial BLE_SERIAL;
#endif
void begin()
{
#if ENABLE_BLE
if( BLE_SERIAL.begin(BLE_HOSTNAME) )
{
debug.info("[NETWORK]", "[BLE]", "Online");
}
#endif
}
void loop()
{
#if ENABLE_BLE
if (Serial.available())
{
BLE_SERIAL.write(Serial.read());
}
if (BLE_SERIAL.available())
{
Serial.write(BLE_SERIAL.read());
}
#endif
}
}
}
but yea not working :S
@tablatronix i found out the problem in the end.... the router in my apartment "TP-Link Deco M5" does not support hostname resolve -.- .... annoying AF!!!