ESP32 web workflow reset

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sebastienperth
 
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ESP32 web workflow reset

Post by sebastienperth »

Hello,
I was playing around with a ESP32 Huzzah board, seeing if I could use the web workflow to push python to it.
I work in an institution with secured WIFI, so I set it up using a hotspot from my phone.
Realizing this won't be a long-term solution I thought I would reset the board back to 'normal' and just use Arduino code on it... but I can't seem to be to do that.
The board isn't showing up at all in device manager when plugged in. I've tried the reset button, double clicking it at different speeds... and that's about all I could think of, and I haven't seen instruction elsewhere.
Any help would be great.
Thanks

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adafruit_support_carter
 
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Re: ESP32 web workflow reset

Post by adafruit_support_carter »

Are you using esptool from the command line or the Web Serial interface?

EDIT - actually, that shouldn't matter. If you just want to get back to Arduino, just upload a new sketch:
https://learn.adafruit.com/huzzah32-esp ... rduino-ide

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sebastienperth
 
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Re: ESP32 web workflow reset

Post by sebastienperth »

I've tried that too. But the board isn't showing up under any of the COM ports. So I get this error message when I try that.
Sketch uses 219089 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 COM5
Connecting......................................

A fatal error occurred: Failed to connect to ESP32: No serial data received.
For troubleshooting steps visit: https://docs.espressif.com/projects/esp ... oting.html
Failed uploading: uploading error: exit status 2

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Re: ESP32 web workflow reset

Post by adafruit_support_carter »

How did you originally setup web workflow? Using esptool or via the Web Serial method?

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sebastienperth
 
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Re: ESP32 web workflow reset

Post by sebastienperth »

Using the web serial tool.

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Re: ESP32 web workflow reset

Post by adafruit_support_carter »

If you repeat the same process that worked before - you are unable to get a COM port to show in the Web Serial tool?

Which specific ESP32 HUZZAH board are you using?

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sebastienperth
 
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Re: ESP32 web workflow reset

Post by sebastienperth »

I haven't been able to repeat the process no.
I have this one: https://www.adafruit.com/product/3405

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Re: ESP32 web workflow reset

Post by adafruit_support_carter »

Double check the USB cable being used. That Feather includes a CP2104 USB-to-serial chip, which is what your PC will see. It does require installing a driver:
https://learn.adafruit.com/adafruit-huz ... rduino-ide

The COM port should show up regardless of what is running on the ESP32.

You got a COM port before? When you were first setting up web workflow?

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