Custom Esp32 wroom board - unable to connect / write firmware - Timed out waiting for packet header

idanhakia
Posts: 1
Joined: Sun Feb 07, 2021 7:05 pm

Custom Esp32 wroom board - unable to connect / write firmware - Timed out waiting for packet header

Postby idanhakia » Sun Feb 07, 2021 7:11 pm

Hi All,
I just received the following board but I'm unable to write firmware to it using arduino IDE
Attaching the schematics for the board.
Hope someone can help.
Thanks

esptool.py v2.6
Serial port COM5
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
Attachments
Schematic.pdf
(1.03 MiB) Downloaded 236 times

ESP_Sprite
Posts: 9769
Joined: Thu Nov 26, 2015 4:08 am

Re: Custom Esp32 wroom board - unable to connect / write firmware - Timed out waiting for packet header

Postby ESP_Sprite » Mon Feb 08, 2021 1:54 am

Your schematic does not have an auto-bootloader circuit. I assume you are using S1 and S4 to get the thing into bootloader mode? (Hold S4, press and release S1, release S4, try upload)

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