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[GH-ISSUE #1618] How to disable blinking LED? I need to use the GPIO pin. #1379

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opened 2026-02-28 01:29:50 +03:00 by kerem · 13 comments
kerem commented 2026-02-28 01:29:50 +03:00
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Originally created by @rtek1000 on GitHub (Jun 1, 2023).
Original GitHub issue: https://github.com/tzapu/WiFiManager/issues/1618

Basic Infos

Hardware

WiFimanager Branch/Release: Master

Esp8266/Esp32:

Hardware: ESP32

Core Version: 2.0.8 (https://github.com/espressif/arduino-esp32)

Description

Problem description

  • LED continues to flash even after station mode has been set.

  • But there is no LED declaration in the source code.

  • If the setup line "res = wm.autoConnect("AutoConnectAP", "password");" is commented out, the LED stops flashing.

  • I found a mention of LED in the issues:

Callback during wifi setup loop (for example, to flash an LED)

Settings in IDE

Module: ESP32 WROOM DA

Additional libraries:

Sketch

#BEGIN
#include <Arduino.h>

void wifiManager_setup(void) {
  pinMode(WM_TRIGGER_PIN, INPUT);

  // wm.resetSettings(); // wipe settings

  if (wm_nonblocking) wm.setConfigPortalBlocking(false);

  // add a custom input field
  int customFieldLength = 40;

  // new (&custom_field) WiFiManagerParameter("customfieldid", "Custom Field Label", "Custom Field Value", customFieldLength,"placeholder=\"Custom Field Placeholder\"");

  // test custom html input type(checkbox)
  // new (&custom_field) WiFiManagerParameter("customfieldid", "Custom Field Label", "Custom Field Value", customFieldLength,"placeholder=\"Custom Field Placeholder\" type=\"checkbox\""); // custom html type

  // test custom html(radio)
  const char* custom_radio_str = "<br/><label for='customfieldid'>Custom Field Label</label><input type='radio' name='customfieldid' value='1' checked> One<br><input type='radio' name='customfieldid' value='2'> Two<br><input type='radio' name='customfieldid' value='3'> Three";
  new (&custom_field) WiFiManagerParameter(custom_radio_str); // custom html input

  wm.addParameter(&custom_field);
  wm.setSaveParamsCallback(saveParamCallback);

  // custom menu via array or vector
  //
  // menu tokens, "wifi","wifinoscan","info","param","close","sep","erase","restart","exit" (sep is seperator) (if param is in menu, params will not show up in wifi page!)
  // const char* menu[] = {"wifi","info","param","sep","restart","exit"};
  // wm.setMenu(menu,6);
  std::vector<const char *> menu = {"wifi", "info", "param", "sep", "restart", "exit"};
  wm.setMenu(menu);

  // set dark theme
  wm.setClass("invert");
  
  //set static ip
  // wm.setSTAStaticIPConfig(IPAddress(10,0,1,99), IPAddress(10,0,1,1), IPAddress(255,255,255,0)); // set static ip,gw,sn
  // wm.setShowStaticFields(true); // force show static ip fields
  // wm.setShowDnsFields(true);    // force show dns field always

  // wm.setConnectTimeout(20); // how long to try to connect for before continuing
  wm.setConfigPortalTimeout(30); // auto close configportal after n seconds
  // wm.setCaptivePortalEnable(false); // disable captive portal redirection
  // wm.setAPClientCheck(true); // avoid timeout if client connected to softap

  // wifi scan settings
  // wm.setRemoveDuplicateAPs(false); // do not remove duplicate ap names (true)
  // wm.setMinimumSignalQuality(20);  // set min RSSI (percentage) to show in scans, null = 8%
  // wm.setShowInfoErase(false);      // do not show erase button on info page
  // wm.setScanDispPerc(true);       // show RSSI as percentage not graph icons

  // wm.setBreakAfterConfig(true);   // always exit configportal even if wifi save fails

  bool res;
  // res = wm.autoConnect(); // auto generated AP name from chipid
  // res = wm.autoConnect("AutoConnectAP"); // anonymous ap
  res = wm.autoConnect("AutoConnectAP", "password"); // password protected ap // <------------------------- this line

  if (!res) {
    Serial.println("Failed to connect or hit timeout");
    // ESP.restart();
  } else {
    //if you get here you have connected to the WiFi
    Serial.println("connected...yeey :)");
  }
}


void loop() {

}
#END

Debug Messages

messages here
Originally created by @rtek1000 on GitHub (Jun 1, 2023). Original GitHub issue: https://github.com/tzapu/WiFiManager/issues/1618 ### Basic Infos #### Hardware WiFimanager Branch/Release: Master Esp8266/Esp32: Hardware: ESP32 Core Version: 2.0.8 (https://github.com/espressif/arduino-esp32) ### Description Problem description - LED continues to flash even after station mode has been set. - But there is no LED declaration in the source code. - If the setup line "res = wm.autoConnect("AutoConnectAP", "password");" is commented out, the LED stops flashing. - I found a mention of LED in the issues: > Callback during wifi setup loop (for example, to flash an LED) - https://github.com/tzapu/WiFiManager/pull/522 ### Settings in IDE Module: ESP32 WROOM DA Additional libraries: ### Sketch ```cpp #BEGIN #include <Arduino.h> void wifiManager_setup(void) { pinMode(WM_TRIGGER_PIN, INPUT); // wm.resetSettings(); // wipe settings if (wm_nonblocking) wm.setConfigPortalBlocking(false); // add a custom input field int customFieldLength = 40; // new (&custom_field) WiFiManagerParameter("customfieldid", "Custom Field Label", "Custom Field Value", customFieldLength,"placeholder=\"Custom Field Placeholder\""); // test custom html input type(checkbox) // new (&custom_field) WiFiManagerParameter("customfieldid", "Custom Field Label", "Custom Field Value", customFieldLength,"placeholder=\"Custom Field Placeholder\" type=\"checkbox\""); // custom html type // test custom html(radio) const char* custom_radio_str = "<br/><label for='customfieldid'>Custom Field Label</label><input type='radio' name='customfieldid' value='1' checked> One<br><input type='radio' name='customfieldid' value='2'> Two<br><input type='radio' name='customfieldid' value='3'> Three"; new (&custom_field) WiFiManagerParameter(custom_radio_str); // custom html input wm.addParameter(&custom_field); wm.setSaveParamsCallback(saveParamCallback); // custom menu via array or vector // // menu tokens, "wifi","wifinoscan","info","param","close","sep","erase","restart","exit" (sep is seperator) (if param is in menu, params will not show up in wifi page!) // const char* menu[] = {"wifi","info","param","sep","restart","exit"}; // wm.setMenu(menu,6); std::vector<const char *> menu = {"wifi", "info", "param", "sep", "restart", "exit"}; wm.setMenu(menu); // set dark theme wm.setClass("invert"); //set static ip // wm.setSTAStaticIPConfig(IPAddress(10,0,1,99), IPAddress(10,0,1,1), IPAddress(255,255,255,0)); // set static ip,gw,sn // wm.setShowStaticFields(true); // force show static ip fields // wm.setShowDnsFields(true); // force show dns field always // wm.setConnectTimeout(20); // how long to try to connect for before continuing wm.setConfigPortalTimeout(30); // auto close configportal after n seconds // wm.setCaptivePortalEnable(false); // disable captive portal redirection // wm.setAPClientCheck(true); // avoid timeout if client connected to softap // wifi scan settings // wm.setRemoveDuplicateAPs(false); // do not remove duplicate ap names (true) // wm.setMinimumSignalQuality(20); // set min RSSI (percentage) to show in scans, null = 8% // wm.setShowInfoErase(false); // do not show erase button on info page // wm.setScanDispPerc(true); // show RSSI as percentage not graph icons // wm.setBreakAfterConfig(true); // always exit configportal even if wifi save fails bool res; // res = wm.autoConnect(); // auto generated AP name from chipid // res = wm.autoConnect("AutoConnectAP"); // anonymous ap res = wm.autoConnect("AutoConnectAP", "password"); // password protected ap // <------------------------- this line if (!res) { Serial.println("Failed to connect or hit timeout"); // ESP.restart(); } else { //if you get here you have connected to the WiFi Serial.println("connected...yeey :)"); } } void loop() { } #END ``` ### Debug Messages ``` messages here ```
kerem closed this issue 2026-02-28 01:29:50 +03:00
kerem commented 2026-02-28 01:29:51 +03:00
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@tablatronix commented on GitHub (Jun 1, 2023):

What board? What led?

<!-- gh-comment-id:1571265642 --> @tablatronix commented on GitHub (Jun 1, 2023): What board? What led?
kerem commented 2026-02-28 01:29:51 +03:00
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@rtek1000 commented on GitHub (Jun 1, 2023):

What board? What led?

ESP32-WROOM-DA, GPIO2.

ESP32-WROOM-DA

<!-- gh-comment-id:1571822522 --> @rtek1000 commented on GitHub (Jun 1, 2023): > What board? What led? ESP32-WROOM-DA, GPIO2. ![ESP32-WROOM-DA](https://github.com/tzapu/WiFiManager/assets/8660811/5b124f17-8d25-49d3-9fed-9a91c60f3853)
kerem commented 2026-02-28 01:29:51 +03:00
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@chriskinal commented on GitHub (Jun 1, 2023):

I had trouble with board profiles that used the blue LED causing WDT timeouts. While troubleshooting, I changed Arduino IDE to the ESP32 Dev Module profile. This stopped the use of the blue LED and the WDT timeouts. I could still use the GPIO2 to activate the blue LED but it wasn't flashing during WiFi use as the other board profile did.

<!-- gh-comment-id:1571901671 --> @chriskinal commented on GitHub (Jun 1, 2023): I had trouble with board profiles that used the blue LED causing WDT timeouts. While troubleshooting, I changed Arduino IDE to the ESP32 Dev Module profile. This stopped the use of the blue LED and the WDT timeouts. I could still use the GPIO2 to activate the blue LED but it wasn't flashing during WiFi use as the other board profile did.
kerem commented 2026-02-28 01:29:51 +03:00
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@tablatronix commented on GitHub (Jun 1, 2023):

you are using the wrong board defs for this board, thats the problem

<!-- gh-comment-id:1571914357 --> @tablatronix commented on GitHub (Jun 1, 2023): you are using the wrong board defs for this board, thats the problem
kerem commented 2026-02-28 01:29:51 +03:00
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@rtek1000 commented on GitHub (Jun 1, 2023):

I was testing it too, and I noticed that if other board models (i.e. DOIT ESP32 DEV KIT V1; ESP32 DEV Module) are selected in the IDE, the LED (GPIO2) stops blinking, so it seems to be only with the ESP32-WROOM-DA. I'll leave the reference of this model, in case someone looks for it:

img

https://www.techtonions.com/esp32-wroom-da/

<!-- gh-comment-id:1571914663 --> @rtek1000 commented on GitHub (Jun 1, 2023): I was testing it too, and I noticed that if other board models (i.e. DOIT ESP32 DEV KIT V1; ESP32 DEV Module) are selected in the IDE, the LED (GPIO2) stops blinking, so it seems to be only with the ESP32-WROOM-DA. I'll leave the reference of this model, in case someone looks for it: ![img](https://www.techtonions.com/wp-content/uploads/2021/05/New-ESP32-WROM-DA-Ficherd-Image.webp) https://www.techtonions.com/esp32-wroom-da/
kerem commented 2026-02-28 01:29:51 +03:00
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@rtek1000 commented on GitHub (Jun 1, 2023):

you are using the wrong board defs for this board, thats the problem

Espressif new ESP32-WROOM-DA is pin-to-pin compatible with ESP32-WROOM-32E. Due to this pin compatibility, users of old ESP32-WROOM-32 modules will find it quick and easy to change to a new module. Apart from Espressif claims, ESP32-WROOM-32E has exact pin compatibility as widely used ESP32-WROOM- 32D. Therefore the new module should be pin-compatible with all those boards based on ESP32-WROOM-32D also.

Source: https://www.techtonions.com/esp32-wroom-da/

<!-- gh-comment-id:1571916967 --> @rtek1000 commented on GitHub (Jun 1, 2023): > you are using the wrong board defs for this board, thats the problem > Espressif new ESP32-WROOM-DA is pin-to-pin compatible with [ESP32-WROOM-32E](https://www.espressif.com/sites/default/files/documentation/esp32-wroom-32e_esp32-wroom-32ue_datasheet_en.pdf). Due to this pin compatibility, users of old ESP32-WROOM-32 modules will find it quick and easy to change to a new module. Apart from Espressif claims, ESP32-WROOM-32E has exact pin compatibility as widely used ESP32-WROOM- 32D. Therefore the new module should be pin-compatible with all those boards based on ESP32-WROOM-32D also. Source: https://www.techtonions.com/esp32-wroom-da/
kerem commented 2026-02-28 01:29:51 +03:00
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@rtek1000 commented on GitHub (Jun 1, 2023):

The ESP32-WROOM-DA module uses GPIO 2 and GPIO 25 to select which antenna is active. These are referenced from the datasheet for the module in table 3 (just after the pin assignment list).

Source: https://github.com/espressif/arduino-esp32/issues/8280

<!-- gh-comment-id:1571978133 --> @rtek1000 commented on GitHub (Jun 1, 2023): >The ESP32-WROOM-DA module uses GPIO 2 and GPIO 25 to select which antenna is active. These are referenced from the datasheet for the module in table 3 (just after the pin assignment list). Source: https://github.com/espressif/arduino-esp32/issues/8280
kerem commented 2026-02-28 01:29:51 +03:00
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@tablatronix commented on GitHub (Jun 1, 2023):

I have never seen any DA board other than the esp devkit, what board exactly is this?
There is no blue led on that board

<!-- gh-comment-id:1572663949 --> @tablatronix commented on GitHub (Jun 1, 2023): I have never seen any DA board other than the esp devkit, what board exactly is this? There is no blue led on that board
kerem commented 2026-02-28 01:29:51 +03:00
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@tablatronix commented on GitHub (Jun 1, 2023):

I knew IT

The ESP32-WROOM-DA module uses GPIO 2 and GPIO 25 to select which antenna is active. These are referenced from the datasheet for the module in table 3 (just after the pin assignment list). Make sure you are selecting “ESP32-WROOM-DA Module” in the boards menu which has additional defines added to enable dual antenna mode support.
<!-- gh-comment-id:1572666649 --> @tablatronix commented on GitHub (Jun 1, 2023): I knew IT ``` The ESP32-WROOM-DA module uses GPIO 2 and GPIO 25 to select which antenna is active. These are referenced from the datasheet for the module in table 3 (just after the pin assignment list). Make sure you are selecting “ESP32-WROOM-DA Module” in the boards menu which has additional defines added to enable dual antenna mode support. ```
kerem commented 2026-02-28 01:29:51 +03:00
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@rtek1000 commented on GitHub (Jun 1, 2023):

The price for having a more powerful signal was losing 2 general purpose pins.

Since the GPIO 25 is DAC1.

D'oh!

¯_(ツ)_/¯

<!-- gh-comment-id:1572683539 --> @rtek1000 commented on GitHub (Jun 1, 2023): The price for having a more powerful signal was losing 2 general purpose pins. Since the GPIO 25 is DAC1. D'oh! ¯\_(ツ)_/¯
kerem commented 2026-02-28 01:29:51 +03:00
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@tablatronix commented on GitHub (Jun 1, 2023):

SO how is the signal ? Is it even worth it?

I wil have to order one of these to test

<!-- gh-comment-id:1572889461 --> @tablatronix commented on GitHub (Jun 1, 2023): SO how is the signal ? Is it even worth it? I wil have to order one of these to test
kerem commented 2026-02-28 01:29:51 +03:00
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@rtek1000 commented on GitHub (Jun 1, 2023):

I found this video about the performance,

See more about this ESP32-Shirt:

#422 A new Dual Antenna ESP32 Module: The WROOM-DA
https://m.youtube.com/watch?v=F0u5qIwwY1k&vl=en

<!-- gh-comment-id:1572907951 --> @rtek1000 commented on GitHub (Jun 1, 2023): I found this video about the performance, See more about this ESP32-Shirt: #422 A new Dual Antenna ESP32 Module: The WROOM-DA https://m.youtube.com/watch?v=F0u5qIwwY1k&vl=en
kerem commented 2026-02-28 01:29:51 +03:00
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@tablatronix commented on GitHub (Jun 3, 2023):

So you haven't used it? I thought you said thats what you are testing?

<!-- gh-comment-id:1574526352 --> @tablatronix commented on GitHub (Jun 3, 2023): So you haven't used it? I thought you said thats what you are testing?
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