esptool.FatalError: Failed to connect to ESP8266: invalid head of packet(0xf0)

[rajatsaini736]

Basic Info

• This issue complies with the issue POLICY doc.
• I have read the documentation at readthedocs and the issue is not addressed there.
• I have tested that the issue is present in current master branch (aka latest git).
• I have searched the issue tracker for a similar issue.
• If there is a stack dump, I have decoded it.
• I have filled out all fields below.

Platform

• Hardware: [ESP-12|ESP-01|ESP-07|ESP8285 device|other]
• Core Version: [latest git hash or date]
• Development Env: [Arduino IDE|Platformio|Make|other]
• Operating System: [Windows|Ubuntu|MacOS]

Settings in IDE

• Module: [Generic ESP8266 Module|Wemos D1 mini r2|Nodemcu|other]
• Flash Mode: [qio|dio|other]
• Flash Size: [4MB/1MB]
• lwip Variant: [v1.4|v2 Lower Memory|Higher Bandwidth]
• Reset Method: [ck|nodemcu]
• Flash Frequency: [40Mhz]
• CPU Frequency: [80Mhz|160MHz]
• Upload Using: [OTA|SERIAL]
• Upload Speed: [115200|other] (serial upload only)

Problem Description

i have an uno board, esp, breadboard, jump wires....and installed esp libraries in arduino ide.
But when i upload the code while selecting tools->Board->generic ESP8266.. it gives me the error ->esptool.FatalError: Failed to connect to ESP8266: Invalid head of packet (0xF0)

MY SKETCH.....

void setup() {

}

void loop() {

}

### Debug Messages
Executable segment sizes:


IROM   : 227372          - code in flash         (default or ICACHE_FLASH_ATTR) 


IRAM   : 26368   / 32768 - code in IRAM          (ICACHE_RAM_ATTR, ISRs...) 


DATA   : 1252  )         - initialized variables (global, static) in RAM/HEAP 


RODATA : 672   ) / 81920 - constants             (global, static) in RAM/HEAP 


BSS    : 24848 )         - zeroed variables      (global, static) in RAM/HEAP 


Sketch uses 255664 bytes (26%) of program storage space. Maximum is 958448 bytes.
Global variables use 26772 bytes (32%) of dynamic memory, leaving 55148 bytes for local variables. Maximum is 81920 bytes.
esptool.py v2.8
Serial port COM11
Connecting........_____....._____....._____....._____....._____....._____.....____Traceback (most recent call last):
  File "C:\Users\Rajat Saini\Documents\ArduinoData\packages\esp8266\hardware\esp8266\2.6.3/tools/upload.py", line 65, in <module>
    esptool.main(cmdline)
  File "C:/Users/Rajat Saini/Documents/ArduinoData/packages/esp8266/hardware/esp8266/2.6.3/tools/esptool\esptool.py", line 2890, in main
    esp.connect(args.before)
  File "C:/Users/Rajat Saini/Documents/ArduinoData/packages/esp8266/hardware/esp8266/2.6.3/tools/esptool\esptool.py", line 483, in connect
    raise FatalError('Failed to connect to %s: %s' % (self.CHIP_NAME, last_error))
esptool.FatalError: Failed to connect to ESP8266: Invalid head of packet (0xF0)
esptool.FatalError: Failed to connect to ESP8266: Invalid head of packet (0xF0)

[rajatsaini736]

I tried this error 1000 times on google but no-one gives me the best solution.

[Tech-TX]

This isn't a problem with the core, it's a problem between (IDE settings) >> (driver for the module) >> (your module) for whatever kind of module you have. The IDE can't talk to the ESP8266 module. You probably shouldn't use the 'generic' module unless you know what settings you need for that specific module. You'll have better luck asking that question over at http://esp8266.com

You've completely ignored the template, so there's not enough information to figure out what you've done incorrectly.

[devyte]

Previous comment is correct. This is an issue tracker meant for tracking issues in the core. For general support questions please refer to a community forum like esp8266.com or stackoverflow.
Closing due to not compliant.

[Badeshka1]

Basic Info

• This issue complies with the issue POLICY doc.
• I have read the documentation at readthedocs and the issue is not addressed there.
• I have tested that the issue is present in current master branch (aka latest git).
• I have searched the issue tracker for a similar issue.
• If there is a stack dump, I have decoded it.
• I have filled out all fields below.

Platform

• Hardware: [ESP-12|ESP-01|ESP-07|ESP8285 device|other]
• Core Version: [latest git hash or date]
• Development Env: [Arduino IDE|Platformio|Make|other]
• Operating System: [Windows|Ubuntu|MacOS]

Settings in IDE

• Module: [Generic ESP8266 Module|Wemos D1 mini r2|Nodemcu|other]
• Flash Mode: [qio|dio|other]
• Flash Size: [4MB/1MB]
• lwip Variant: [v1.4|v2 Lower Memory|Higher Bandwidth]
• Reset Method: [ck|nodemcu]
• Flash Frequency: [40Mhz]
• CPU Frequency: [80Mhz|160MHz]
• Upload Using: [OTA|SERIAL]
• Upload Speed: [115200|other] (serial upload only)

Problem Description

i have an uno board, esp, breadboard, jump wires....and installed esp libraries in arduino ide.
But when i upload the code while selecting tools->Board->generic ESP8266.. it gives me the error ->esptool.FatalError: Failed to connect to ESP8266: Invalid head of packet (0xF0)

MY SKETCH.....

void setup() {

}

void loop() {

}

### Debug Messages
Executable segment sizes:


IROM   : 227372          - code in flash         (default or ICACHE_FLASH_ATTR) 


IRAM   : 26368   / 32768 - code in IRAM          (ICACHE_RAM_ATTR, ISRs...) 


DATA   : 1252  )         - initialized variables (global, static) in RAM/HEAP 


RODATA : 672   ) / 81920 - constants             (global, static) in RAM/HEAP 


BSS    : 24848 )         - zeroed variables      (global, static) in RAM/HEAP 


Sketch uses 255664 bytes (26%) of program storage space. Maximum is 958448 bytes.
Global variables use 26772 bytes (32%) of dynamic memory, leaving 55148 bytes for local variables. Maximum is 81920 bytes.
esptool.py v2.8
Serial port COM11
Connecting........_____....._____....._____....._____....._____....._____.....____Traceback (most recent call last):
  File "C:\Users\Rajat Saini\Documents\ArduinoData\packages\esp8266\hardware\esp8266\2.6.3/tools/upload.py", line 65, in <module>
    esptool.main(cmdline)
  File "C:/Users/Rajat Saini/Documents/ArduinoData/packages/esp8266/hardware/esp8266/2.6.3/tools/esptool\esptool.py", line 2890, in main
    esp.connect(args.before)
  File "C:/Users/Rajat Saini/Documents/ArduinoData/packages/esp8266/hardware/esp8266/2.6.3/tools/esptool\esptool.py", line 483, in connect
    raise FatalError('Failed to connect to %s: %s' % (self.CHIP_NAME, last_error))
esptool.FatalError: Failed to connect to ESP8266: Invalid head of packet (0xF0)
esptool.FatalError: Failed to connect to ESP8266: Invalid head of packet (0xF0)

I have the exact same Problem. Have you found a solution?

[Rahuldakuri]

Check the onboard components of the esp module there might be a possibility of minor short circuit it happens when we usually jump it with the UNO board due the voltage parameters

[Badeshka1]

Hmm Im using a voltage reducer regulator to step down the 5V from the Arduino Uno to the 3.3V it needs.

Im also getting the Same Error but with a (0x08) and not the (0xF0) anymore. Do you know what the difference between these two is?

Thanks for the quick reply!

[Badeshka1]

Also all the AT+ commands work. I can connect to my wifi network and get the IP ETC. I just cant upload code...?

[nitrame]

hi guys, please i have this same error of invalid head of packet (0x90). i am using an ESP-12F module on an arduino UNO. i removed the AtMEga I.C from the arduino and connected tx to tx from the esp to UNO. all i see when i open serial monitor is a lot of rubbish. and the blue LED on the ESP keeps blinking fast..... SOMEBODY HELPPP!!!

[devyte]

This is an issue tracker, meant for tracking issues in the core. It's not meant for general support or help requests. Please seek such help at a community forum like esp8266.com or stackoverflow.

[Rahuldakuri]

Well this might sound sarcastic but did you check the port declaration on the ide before uploading the code I just had the doubt

[tedhts]

I had the same error. Anyone get this to work?

[Badeshka1]

For the the Problem was caused because I didn't have the reset pin connected to ground the Arduino uno board. Once you connect that the Arduino knows that it just needs to pass through the code. Hope it helps!

…

On 30. Apr 2020, at 20:28, Theodore Schmiechen ***@***.***> wrote:  I had the same error. Anyone get this to work? — You are receiving this because you commented. Reply to this email directly, view it on GitHub, or unsubscribe.

[tedhts]

Wow, thank you! That's exactly what I needed. I uploaded the code with no problem.

[teenkevo]

For the the Problem was caused because I didn't have the reset pin connected to ground the Arduino uno board. Once you connect that the Arduino knows that it just needs to pass through the code.

Hope it helps!

On 30. Apr 2020, at 20:28, Theodore Schmiechen notifications@github.com wrote:


I had the same error. Anyone get this to work?

—
You are receiving this because you commented.
Reply to this email directly, view it on GitHub, or unsubscribe.

Hi, I am trying to understand this comment but i'm failing to yet it seems like the solution lies here. Can you reach out please. Thanks