i am using robotdyn uno+wifi R3 board
i am trying to flash the board at firware using the flash download tool
i am getting an error as ESP8266 chip sync error esp_sync blocking.
For this kind of issue you can reference to the following topic. I hope this would help you to solve your issue.
All the best,
i have updated the firmware and AT command AT+RSt and AT+GMR are working rest all are giving error
and if i try to upload the sketch it gives espcomm_upload_failed.
any solution for this?
Hi there @rish,
If the AT Commands are giving you errors, unfortunately, the issue is related with your hardware, I would advise to try with another ESP8266 or to open a support ticket to get help directly from the guys from Espressif.
Have a nice rest of day