ESP32-CAM
From DWIKI
Documentation
Programming
Programming works for me using FT232RL 3.3v-5v TTL USB Serial Port Adapter set to 3.3V, and connecting Vcc to the 3.3V pin on the ESP32-CAM module.
To actually run after programmin it seems to need 5V on the 5V pin
Links
FAQ
A fatal error occurred: Failed to connect to ESP32: Timed out waiting for packet header
Trying to program using the ESP-PROG? Doesn't work for me either
seems you have to choose the wrover card