I am flashing a custom board , and it gives this error attached in picture....
I have another custom board which works properly with same schematic.
One thing i observer, boards ordered for one project which works for me are flashing directly without any issue.
But in this lot i face issue as shown in picture. I am attatching picture flashed through ESP IDF and Arduino both. Please help
Please upload the schematic of this board, the PCB layout and some good photos of this particular assembled board.
Please upload the schematic of this board,
the PCB layout
and some good photos of this particular assembled board.
Please post all of it, not just the programming section, and please post it in such a way that the text is legible.
Thank you.
Try disconnecting the circuit attached to pin #3/EN. Remove r8 as well. Disconnect anything else that may be connected to these pins.
The circuit around Q2 and Q3 looks like the auto-reset feature that allows Arduino programming, but it's implemented wrong. You probably mean this:
The pin labeled RESET in the pic above is called EN on your ESP32.
This page is convenient in deciding which pins to use for your project: ESP32 Pinout Reference: Which GPIO pins should you use? | Random Nerd Tutorials
Be wary of using any pins that *don't * have two "OK's" listed for them.
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