A fatal error occurred: Failed to connect to ESP32: No serial data received

[kazz70]

Hi There, I'm new to Arduino and trying to upload a code to an esp32 cam board via an FTDI connector. And to whatever code I upload, I get the following error.

And I double-checked my connections com ports and pressed the reset button when connecting appeared, making sure my GPI 0 and GND were connected.

And then I tried using the ESP32-CAM-MB programmer to program, and then I got this error.

I referred to a lot of online articles but could not seem to resolve my issue. Would appreciate it a lot if you could provide me support.
Thank you in advance.

[kazz70]

Hi All; I was able to fix this. Connecting the GND pin of the FTDI connector to the GND pin near the 5V pin of the esp 32 cam board allowed the code to be uploaded.

And the setting was set to these. I hope this helps someone✌🏼

[srnet]

@kazz70

Hi All; I was able to fix this. Connecting the GND pin of the FTDI connector to the GND pin near the 5V pin of the esp 32 cam board allowed the code to be uploaded.

So you had RX and TX on the FTDIs connector connected to the ESP32CAM, but the GND pin on the FTDIs connector was not connected anywhere ?

[kazz70]

It was connected to the ground pin near the flash, as in many diagrams you get when you search.