I recently purchased three of what I thought were the DOIT ESP32 DEVKIT V1 Boards. They did not have the DOIT brand but appear physically identical. The website may be https://www.ebay.com/itm/201853283621. Item is ESP32 ESP32S CP2102 Development Board 2.4GHz Dual-Mode WiFi+Bluetooth Antenna, I have installed the espressif module. I select the DOIT Board, 115200 Baud, and the WiFi Scan Example. Click Upload – Compile OK but Upload Error \”A fatal error occurred: Failed to connect to ESP32: Timed out waiting for packet header\” .Totally new to this with the exception of a number of Arduino tutorials completed successfully. I have also tried a number of other boards with no success.. What am I doing wrong?
Basically that ESP32 is the DOIT model with 30 pins, but it should work just fine with the course. Can you re-open this Unit? https://rntlab.com/esp32-troubleshooting-guide/
Basically take a look/read this section: “4. A fatal error occurred: “Failed to connect to ESP32: Timed out… Connecting…””
Basically, after pressing the Upload button in your Arduino IDE, you need to hold-down the ESP32 BOOT button to force the uploading of new code to your board.
I hope that solves your problem!