[GH-ISSUE #1452] NodeMCU oled example resets every few seconds, checked code like described in the wiki

kerem commented

2026-02-28 00:04:41 +03:00

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Originally created by @strolll395 on GitHub (Jul 5, 2021).
Original GitHub issue: https://github.com/SpacehuhnTech/esp8266_deauther/issues/1452

Have you searched for existing (open and closed) issues describing the same problem?

Yes

Describe the error
A clear and concise description of what the problem is.
What do you think causes it?

Error/Compile/Output Log
Mounting SPIFFS...OK
Formatting SPIFFS...OK
Formatting EEPROM...OK
Loading settings...Invalid Hash
Settings reset to default
Settings saved in /settings.json
Device names loaded from /names.json
SSIDs loaded from /ssids.json
Scan results saved in /scan.json
Serial interface enabled
Started AP
[WiFi] Path: '/web', Mode: 'AP', SSID: 'pwned', password: 'deauther', channel: '1', hidden: true, captive-portal: false
STARTED! \o/
2.6.0

 ets Jan  8 2013,rst cause:4, boot mode:(3,4)

wdt reset
load 0x4010f000, len 3584, room 16 
tail 0
chksum 0xb0
csum 0xb0
v2843a5ac
~ld

Mounting SPIFFS...OK
Loading settings...OK
Device names loaded from /names.json
SSIDs loaded from /ssids.json
Scan results saved in /scan.json
Serial interface enabled
Started AP
[WiFi] Path: '/web', Mode: 'AP', SSID: 'pwned', password: 'deauther', channel: '1', hidden: true, captive-portal: false
STARTED! \o/
2.6.0


**To Reproduce**
Steps to reproduce the behavior:
1. Connect OLED
2. Upload OLED example
3. Open serial monitor on baud 115200
4. Device resets every few seconds without any output on the OLED.

**Expected behavior**
A clear and concise description of what you expected to happen.
OLED should display output and be controllable.
**Screenshots**
If applicable, add screenshots to help explain your problem.

**Environment (please complete the following information):**
 - OS: [Windows 10]
 - Version [Deauther 2.6]
 - Hardware [AZDelivery NodeMCU]

**Attempts**
What have you already tried and didn't work out.
Changed code, didn't help.
**Additional context**
Provide as much information as possible, better too much than too little!
If you don't use this template, your issue might be closed and tagged invalid!

Originally created by @strolll395 on GitHub (Jul 5, 2021). Original GitHub issue: https://github.com/SpacehuhnTech/esp8266_deauther/issues/1452 > Have you searched for existing (open and closed) issues describing the same problem? Yes **Describe the error** A clear and concise description of what the problem is. What do you think causes it? ``` Error/Compile/Output Log Mounting SPIFFS...OK Formatting SPIFFS...OK Formatting EEPROM...OK Loading settings...Invalid Hash Settings reset to default Settings saved in /settings.json Device names loaded from /names.json SSIDs loaded from /ssids.json Scan results saved in /scan.json Serial interface enabled Started AP [WiFi] Path: '/web', Mode: 'AP', SSID: 'pwned', password: 'deauther', channel: '1', hidden: true, captive-portal: false STARTED! \o/ 2.6.0 ets Jan 8 2013,rst cause:4, boot mode:(3,4) wdt reset load 0x4010f000, len 3584, room 16 tail 0 chksum 0xb0 csum 0xb0 v2843a5ac ~ld Mounting SPIFFS...OK Loading settings...OK Device names loaded from /names.json SSIDs loaded from /ssids.json Scan results saved in /scan.json Serial interface enabled Started AP [WiFi] Path: '/web', Mode: 'AP', SSID: 'pwned', password: 'deauther', channel: '1', hidden: true, captive-portal: false STARTED! \o/ 2.6.0 **To Reproduce** Steps to reproduce the behavior: 1. Connect OLED 2. Upload OLED example 3. Open serial monitor on baud 115200 4. Device resets every few seconds without any output on the OLED. **Expected behavior** A clear and concise description of what you expected to happen. OLED should display output and be controllable. **Screenshots** If applicable, add screenshots to help explain your problem. **Environment (please complete the following information):** - OS: [Windows 10] - Version [Deauther 2.6] - Hardware [AZDelivery NodeMCU] **Attempts** What have you already tried and didn't work out. Changed code, didn't help. **Additional context** Provide as much information as possible, better too much than too little! If you don't use this template, your issue might be closed and tagged invalid!

kerem

2026-02-28 00:04:41 +03:00

closed this issue
added the
help wanted
label

kerem commented

2026-02-28 00:04:42 +03:00

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@welcome[bot] commented on GitHub (Jul 5, 2021):

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@welcome[bot] commented on GitHub (Jul 5, 2021): Congrats on opening your first issue on this repository! 🎉 This is a automated message to help you avoid common pitfalls when asking for help online. 👉 Be sure to: * 🇬🇧 Communicate in English so everybody can understand you * 📖 Have a look at the [Wiki](https://github.com/spacehuhntech/esp8266_deauther/wiki) and [README](https://github.com/SpacehuhnTech/esp8266_deauther/blob/v2/README.md) for information * 🔍 Search for similar [issues (open and closed)](https://github.com/SpacehuhnTech/esp8266_deauther/issues?q=is%3Aissue+) * ✍️ Provide enough information to understand, recreate and help out with your problem * ℹ️ Let us know if you find a solution and please share it with us * 📕 Close the issue when your problem has been solved

kerem commented

2026-02-28 00:04:42 +03:00

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@strolll395 commented on GitHub (Jul 5, 2021):

Oh, and I2C Display example is selected as the board, checked that.

@strolll395 commented on GitHub (Jul 5, 2021): Oh, and I2C Display example is selected as the board, checked that.

kerem commented

2026-02-28 00:04:42 +03:00

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@captclearleft commented on GitHub (Dec 9, 2021):

Was this issue closed with a solution - I dont see the solution. I will continue to look.

I am having the same exact issue. Following the "Setup Display & Buttons" exactly. (NodeMCU with Display Example I2c)
I am using the LOLIN NodeMCU v3 with the ch340 chip (I have 3 of them, and have tried 2 of em).
I tried changing the code for the SDA and SCK pins from 5, 4 to 4,5 to D1,D2. I tried swapping those wires.
I tried uncommenting these lines in the A_config.h...
#define NODEMCU
#define DISPLAY_EXAMPLE_I2C
I tried different power sources.
I tried just flashing it with the Node MCU Flasher and the .bin file.

I don't have any custom anything going on, just set up exactly as described in the tutorial.

The regular NodeMCU code without display works flawlessly on both boards.
When I run the OLED display code from https://github.com/squix78/esp8266-oled-ssd1306 The display works fine. No resets, and the display shows everything just fine.

I am guessing its something to do with the way this board and the ch340 chip exists.
Maybe ill try the resistors on D4 and D8.

Any one else use this board, or have a solution? Thanks so much.

@captclearleft commented on GitHub (Dec 9, 2021): Was this issue closed with a solution - I dont see the solution. I will continue to look. I am having the same exact issue. Following the "**Setup Display & Buttons**" exactly. (NodeMCU with Display Example I2c) I am using the LOLIN NodeMCU v3 with the ch340 chip (I have 3 of them, and have tried 2 of em). I tried changing the code for the SDA and SCK pins from 5, 4 to 4,5 to D1,D2. I tried swapping those wires. I tried uncommenting these lines in the A_config.h... #define NODEMCU #define DISPLAY_EXAMPLE_I2C I tried different power sources. I tried just flashing it with the Node MCU Flasher and the .bin file. I don't have any custom anything going on, just set up exactly as described in the tutorial. The regular NodeMCU code without display works flawlessly on both boards. When I run the OLED display code from https://github.com/squix78/esp8266-oled-ssd1306 The display works fine. No resets, and the display shows everything just fine. I am guessing its something to do with the way this board and the ch340 chip exists. Maybe ill try the resistors on D4 and D8. Any one else use this board, or have a solution? Thanks so much.

kerem commented

2026-02-28 00:04:42 +03:00

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@captclearleft commented on GitHub (Dec 9, 2021):

Just another update. Tried adding the resistors (D4 - High, D8 - Low, and I even tried Pulling Reset High (10k))
Same results - No display, constant resets...

wdt reset
load 0x4010f000, len 3460, room 16
tail 4
chksum 0xcc
load 0x3fff20b8, len 40, room 4
tail 4
chksum 0xc9
csum 0xc9
v000cb3d0
~ld

Reloaded the SSD1306SimpleDemo.ino sketch. Screen still works fine.
I still think its something screwy with this ch340 chipped LOLIN NodeMCU.

I did try my Adafruit feather esp8266 - That didnt work either. I may have not hooked that up correctly as there are only the two SDA and SCK (4,5) on that board and thats what I used...

I updated all my libraries for Arduino, still no luck. Any ideas would be appreciated. Thanks

@captclearleft commented on GitHub (Dec 9, 2021): Just another update. Tried adding the resistors (D4 - High, D8 - Low, and I even tried Pulling Reset High (10k)) Same results - No display, constant resets... wdt reset load 0x4010f000, len 3460, room 16 tail 4 chksum 0xcc load 0x3fff20b8, len 40, room 4 tail 4 chksum 0xc9 csum 0xc9 v000cb3d0 ~ld Reloaded the SSD1306SimpleDemo.ino sketch. Screen still works fine. I still think its something screwy with this ch340 chipped LOLIN NodeMCU. I did try my Adafruit feather esp8266 - That didnt work either. I may have not hooked that up correctly as there are only the two SDA and SCK (4,5) on that board and thats what I used... I updated all my libraries for Arduino, still no luck. Any ideas would be appreciated. Thanks

kerem commented

2026-02-28 00:04:42 +03:00

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@strolll395 commented on GitHub (Dec 11, 2021):

@captclearleft
i used this code back in july, display and buttons work just fine. Remember to adjust your settings accordingly
https://github.com/wh1ter0z?tab=repositories
(esp8266 deauther)

@strolll395 commented on GitHub (Dec 11, 2021): @captclearleft i used this code back in july, display and buttons work just fine. Remember to adjust your settings accordingly https://github.com/wh1ter0z?tab=repositories (esp8266 deauther)

kerem commented

2026-02-28 00:04:42 +03:00

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@captclearleft commented on GitHub (Dec 11, 2021):

@strolll395 Thanks. You didn't mention what was the fix for you?
Was it a setting - Which setting? I have used the defaults and the only change I need to make is the screen. I am using
#define SSD1306_I2C Everything else is as you have on your fork.

Which NodeMCU are you using. I think my issue is being caused by the fact that I am using the NodeMCU by Lolin that has the cheap CH240 USB chip...

Thanks

@captclearleft commented on GitHub (Dec 11, 2021): @strolll395 Thanks. You didn't mention what was the fix for you? Was it a setting - Which setting? I have used the defaults and the only change I need to make is the screen. I am using #define SSD1306_I2C Everything else is as you have on your fork. Which NodeMCU are you using. I think my issue is being caused by the fact that I am using the NodeMCU by Lolin that has the cheap CH240 USB chip... Thanks

kerem commented

2026-02-28 00:04:42 +03:00

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@captclearleft commented on GitHub (Dec 11, 2021):

Ok, So I copied your A_config.h into the Arduino IDE replacing the original A_config.h code.
Used "NodeMCU" As the "Board" and the "Deauther Config" under tools.
And it worked.
It looks like there is something in the #if #elseif statements when using the "Deauther Config= Deisplay Example IIC" mode that causes an issue. Using just the file with all the #if #elseif statements removed and then just defining the display worked.
Thanks
https://github.com/wh1ter0z/esp8266_deauther

@captclearleft commented on GitHub (Dec 11, 2021): Ok, So I copied your A_config.h into the Arduino IDE replacing the original A_config.h code. Used "NodeMCU" As the "Board" and the "Deauther Config" under tools. And it worked. It looks like there is something in the #if #elseif statements when using the "Deauther Config= Deisplay Example IIC" mode that causes an issue. Using just the file with all the #if #elseif statements removed and then just defining the display worked. Thanks https://github.com/wh1ter0z/esp8266_deauther

kerem commented

2026-02-28 00:04:42 +03:00

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@ASCII-encrypt commented on GitHub (Feb 26, 2023):

so ive done everything here and no more bootlooping but i still dont have any screen tried changing values still nothing

@ASCII-encrypt commented on GitHub (Feb 26, 2023): so ive done everything here and no more bootlooping but i still dont have any screen tried changing values still nothing

kerem commented

2026-02-28 00:04:42 +03:00

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@1jammer1 commented on GitHub (Feb 27, 2023):

have you tried changing the hardware

On Sat, Feb 25, 2023 at 8:12 PM ASCII-encrypt @.***>
wrote:

so ive done everything here and no more bootlooping but i still dont have
any screen tried changing values still nothing

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@1jammer1 commented on GitHub (Feb 27, 2023): have you tried changing the hardware On Sat, Feb 25, 2023 at 8:12 PM ASCII-encrypt ***@***.***> wrote: > so ive done everything here and no more bootlooping but i still dont have > any screen tried changing values still nothing > > — > Reply to this email directly, view it on GitHub > <https://github.com/SpacehuhnTech/esp8266_deauther/issues/1452#issuecomment-1445240208>, > or unsubscribe > <https://github.com/notifications/unsubscribe-auth/ASPH4VFOSN6CNQ57D3NCO7LWZKUXFANCNFSM473GOCGQ> > . > You are receiving this because you are subscribed to this thread.Message > ID: ***@***.***> > -- _____________________________________________________________ CONFIDENTIALITY/PRIVACY NOTICE: This message and any attachments transmitted with it is for the designated recipient only and may contain privileged or confidential information. If you have received it in error please notify the sender, via return e-mail, immediately and permanently delete the original. Any unauthorized review, disclosure, dissemination, distribution, or copying of this e-mail is strictly prohibited. Thank you.

kerem commented

2026-02-28 00:04:42 +03:00

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@ASCII-encrypt commented on GitHub (Feb 28, 2023):

have you tried changing the hardware

Didn't have to . . . breadboard started to smoke got a new one and it's all working now

Safe to say that was the issue

@ASCII-encrypt commented on GitHub (Feb 28, 2023): > have you tried changing the hardware > Didn't have to . . . breadboard started to smoke got a new one and it's all working now Safe to say that was the issue

kerem commented

2026-02-28 00:04:42 +03:00

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@elimerins commented on GitHub (Jul 10, 2023):

@captclearleft i used this code back in july, display and buttons work just fine. Remember to adjust your settings accordingly https://github.com/wh1ter0z?tab=repositories (esp8266 deauther)

my bug fixed. but we need to change ssid/pw in A_config.h.

and double check pins in breadboard with display.

@elimerins commented on GitHub (Jul 10, 2023): > @captclearleft i used this code back in july, display and buttons work just fine. Remember to adjust your settings accordingly https://github.com/wh1ter0z?tab=repositories (esp8266 deauther) my bug fixed. but we need to change ssid/pw in A_config.h. and double check pins in breadboard with display.

kerem referenced this issue

2026-02-28 00:06:21 +03:00

[PR #771] [MERGED] updating locales #1106

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[GH-ISSUE #1452] NodeMCU oled example resets every few seconds, checked code like described in the wiki #771