Hello :sm9: , a few days ago two boards came to me from ali, one is ESP32-CAM the other ESP32 38 PIN. The ESP32-Cam board is not a problem, everything works, the sketch loads, connects to the wifi network and transmits the image. However, I have a problem with the second board, I can't upload a...

. They are wrong, it is not WROVER. It should be e.g. ESP32 Dev Module. . This is ESP32-DevKitC. It would be better if they offered spellchecking - potentially less dangerous

. When changing to: Further it is the same : .

Try it on the settings as below: .

After the change to : . It continues as follows:

Then press the BOOT button before uploading the programme and only release it when the programme loading has finished.

It is exactly the same as before : Added after 4 [minutes]: I can also add that after pressing the button, RST, once, the port monitor displays such information (then the LED on the board flashes) : .And after pressing Boot once (the led goes out) and the following is displayed :

This is some kind of cable or USB port problem, but it is also possible that the board is faulty. From the picture, it appears that the bootloader itself is loaded, and then there is a hang when trying to load the actual program. What you can still try to do is to erase all the flash in the ESP. This can be done using the Flash Download Tool: Link . EDIT: direct link to Flash Download Tool: Link

Should the programme spit out any information, a message, when the ERASE button is clicked? Added after 9 [minutes]: In Thonny there is an option to clean the flash before uploading firmware and when it comes to cleaning, after a long time it spits out an error, I also tried with boot pressed but the same : . Added after 2 [minutes]: As for the USB I have tried with all of them on both laptops one on win 10 the other on win 7 and it is the same, and as for the cable I can try with another one but at the moment I don't have another one.

. Try with the Dual I/O and Dual Output options. It's also worth trying on a different USB cable, but not one just for charging your mobile phone.

I also tried with these two options and still the same, tomorrow I will try to get a second cable and let you know if anything has changed.

ESP32-A fatal error occurred: Timed out waiting for packet header

damianniziol 864 11

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#1 19965243 05 Apr 2022 15:50

damianniziol damianniziol

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Post #1
19965243 05 Apr 2022 15:50

Hello , a few days ago two boards came to me from ali, one is ESP32-CAM the other ESP32 38 PIN.
The ESP32-Cam board is not a problem, everything works, the sketch loads, connects to the wifi network and transmits the image. However, I have a problem with the second board, I can't upload a simple program there:

Code: Arduino
Log in, to see the code
.

In the console this information appears : .

.

Tile settings:

.
Pictures of the troublesome tile
.

Picture of working board

.

I'm also not sure how to unambiguously determine the type of this board , it's hard to find another board like it in this configuration with the same circuit layout. In the auction it was only referred to as , "ESP-32 38 PINS."

It is the third day that I am looking for information to solve this problem, but without success. I have seen on youtube and various forums ways that some people connect condensers or resistors under specific pins and this helps some to upload the sketch. I've also tried doing this but I'm not sure if I've connected to the right pins. I've also tried selecting different boards from the board manager in arduino but it's still the same.
I don't know what I can do anymore on this topic so this is my first post on a forum (of any kind), so please understand I'm asking for help that maybe someone smarter can do something about it .
Greetings !

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#2 19965254 05 Apr 2022 16:04

khoam khoam

Level 42

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Post #2
19965254 05 Apr 2022 16:04

damianniziol wrote:
Tile settings:
.
They are wrong, it is not WROVER. It should be e.g. ESP32 Dev Module.

damianniziol wrote:
In the auction it was only specified as , "ESP-32 38 PINS."
.
This is ESP32-DevKitC.

damianniziol wrote:
On youtube and in various forums I have seen ways that some people connect condensers or resistors to specific pins and this helps some upload the sketch.

It would be better if they offered spellchecking - potentially less dangerous
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#3 19965262 05 Apr 2022 16:05

damianniziol damianniziol

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Post #3
19965262 05 Apr 2022 16:05

.
When changing to:

Further it is the same :

.
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#4 19965268 05 Apr 2022 16:11

khoam khoam

Level 42

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Post #4
19965268 05 Apr 2022 16:11

Try it on the settings as below:

.
#5 19965273 05 Apr 2022 16:17

damianniziol damianniziol

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Post #5
19965273 05 Apr 2022 16:17

After the change to : .

It continues as follows:
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#6 19965280 05 Apr 2022 16:21

khoam khoam

Level 42

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Post #6
19965280 05 Apr 2022 16:21

Then press the "BOOT" button before uploading the programme and only release it when the programme loading has finished.
#7 19965292 05 Apr 2022 16:32

damianniziol damianniziol

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Post #7
19965292 05 Apr 2022 16:32

It is exactly the same as before :

Added after 4 [minutes]:

I can also add that after pressing the button, RST, once, the port monitor displays such information (then the LED on the board flashes) : .

And after pressing "Boot" once (the led goes out) and the following is displayed :
#8 19965312 05 Apr 2022 16:37

khoam khoam

Level 42

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Post #8
19965312 05 Apr 2022 16:37

This is some kind of cable or USB port problem, but it is also possible that the board is faulty. From the picture, it appears that the bootloader itself is loaded, and then there is a "hang" when trying to load the actual program.
What you can still try to do is to erase all the flash in the ESP. This can be done using the Flash Download Tool: Link .

EDIT: direct link to Flash Download Tool: Link
#9 19965391 05 Apr 2022 17:49

damianniziol damianniziol

Level 4

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Post #9
19965391 05 Apr 2022 17:49

Should the programme spit out any information, a message, when the "ERASE" button is clicked?

Added after 9 [minutes]:

In Thonny there is an option to clean the flash before uploading firmware and when it comes to cleaning, after a long time it spits out an error, I also tried with "boot" pressed but the same :
.

Added after 2 [minutes]:

As for the USB I have tried with all of them on both laptops one on win 10 the other on win 7 and it is the same, and as for the cable I can try with another one but at the moment I don't have another one.
#10 19965447 05 Apr 2022 18:03

khoam khoam

Level 42

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Post #10
19965447 05 Apr 2022 18:03

damianniziol wrote:
In Thonny there is an option to clean flesh before uploading firmware
.
Try with the "Dual I/O" and "Dual Output" options. It's also worth trying on a different USB cable, but not one just for charging your mobile phone.
#11 19965472 05 Apr 2022 18:15

damianniziol damianniziol

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Post #11
19965472 05 Apr 2022 18:15

I also tried with these two options and still the same, tomorrow I will try to get a second cable and let you know if anything has changed.
#12 19967042 06 Apr 2022 17:51

damianniziol damianniziol

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Post #12
19967042 06 Apr 2022 17:51

With the new cable it is the same, still error ;(
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Topic summary

The discussion revolves around an issue with uploading a program to an ESP32 38 PIN board, while an ESP32-CAM board functions correctly. The user encounters a "Timed out waiting for packet header" error during the upload process. Various troubleshooting steps are suggested, including changing board settings, pressing the "BOOT" button during upload, and checking USB cables and ports. Recommendations also include using the Flash Download Tool to erase the flash memory and trying different I/O settings. Despite these efforts, the user continues to face the same error, indicating potential hardware issues with the board or cable.
Summary generated by the language model.

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ESP32-A fatal error occurred: Timed out waiting for packet header