Getting this error even after pressing boot button on esp

[farhan74]

Arduino: 1.8.19 (Windows 10), Board: "ESP32 Dev Module, Disabled, Default 4MB with spiffs (1.2MB APP/1.5MB SPIFFS), 240MHz (WiFi/BT), QIO, 80MHz, 4MB (32Mb), 921600, None"

Sketch uses 198966 bytes (15%) of program storage space. Maximum is 1310720 bytes.

Global variables use 13248 bytes (4%) of dynamic memory, leaving 314432 bytes for local variables. Maximum is 327680 bytes.

esptool.py v3.0-dev

Serial port COM9

Connecting........_____....._____....._____....._____....._____....._____....._____



A fatal error occurred: Failed to connect to ESP32: Timed out waiting for packet header

A fatal error occurred: Failed to connect to ESP32: Timed out waiting for packet header





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[Idahowalker]

A common enough seen error that the error gives no clues WITHOUT further information.

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If you are using a 9V battery like this.

Don't.

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Bread board power rail split

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[horace]

which ESP32 board are you using?
did you press the boot button while it was displaying ...........
use the device manager to check you have the correct COM port set up

[StefanL38]

@farhan74

Connecting........_____....._____..

dd you press the boot-button after the qoted text above appeared?

You have to press the button after that.
Did you also press the other button? Some of the boards are wrong labeled.

Another thing that might make it work is do connect a 1 µF capacitor between GND and the EN-Pin.

[farhan74]

Pressed the boot and other buttons after, used capacitor but in vain

[StefanL38]

If you plugin your ESP32 to the USB-cable do you hear this sound "new USB-device-detected"?

After pluggin in the USB
If you open the device-manager do you see a new entry in the COM-LPT-section?

[ZX80]

Can you open the serial monitor ? What do you see if you open the serial monitor at 115200 and press and release the reset button ?

[farhan74]

yes, I hear the sound and also see the port in device manager

[farhan74]

code doesn't upload and I don't see anything on serial moniter

[farhan74]

ESP32 Dev kit DOIT. Yes I pressed it. and can see the port on device manager

[Idahowalker]

Disconnect the ESP32. List off the ports in the Arduino IDE. Add in the ESP32, does the ports available in the IDE change?

[farhan74]

yes, com 9 adds upon connecting esp32.

[farhan74]

I see this message upon uploading:

Arduino: 1.8.19 (Windows 10), Board: "ESP32 Dev Module, Disabled, Default 4MB with spiffs (1.2MB APP/1.5MB SPIFFS), 240MHz (WiFi/BT), QIO, 80MHz, 4MB (32Mb), 921600, Core 1, Core 1, None, Disabled"

Sketch uses 219241 bytes (16%) of program storage space. Maximum is 1310720 bytes.

Global variables use 16088 bytes (4%) of dynamic memory, leaving 311592 bytes for local variables. Maximum is 327680 bytes.

esptool.py v4.2.1

Serial port COM9

Connecting......................................



A fatal error occurred: Failed to connect to ESP32: No serial data received.

For troubleshooting steps visit: https://docs.espressif.com/projects/esptool/en/latest/troubleshooting.html

the selected serial port For troubleshooting steps visit: https://docs.espressif.com/projects/esptool/en/latest/troubleshooting.html

 does not exist or your board is not connected



This report would have more information with
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option enabled in File -> Preferences.

[dlloyd]

A fail-safe method I've used in the past is to just disconnect everything (including breadboard). Only have the USB cable connected from the PC to ESP32. Now try to upload your sketch.

[farhan74]

tried already

[dlloyd]

Its possible the PC's USB port isn't configured or designed to deliver enough power (max mA). If you have a good quality USB hub available with power adapter connected, this could ensure that 500mA or more is available at each USB port. Actually, in my previous comment, this is the setup I was using.

[StefanL38]

when you tried it is any hardware connected to your ESP32 board?
Or is it the plain nothing but USB-cable connected board?

[farhan74]

I've been using this same board previously for my projects on this pc, it used to work fine. please see the error message I typed above

[farhan74]

plain with usb

[Idahowalker]

Did you try with the other ESP32 module?