![]() ![]() Important: if you can’t upload the code, double-check that GPIO 0 is connected to GND and that you selected the right settings in the Tools menu. You should also press the on-board Reset button to restart your ESP32 in flashing mode. Also, check that you have the FTDI programmer jumper cap set to 5V. One of our readers reported the following: “ found out that you can program the board with a USB-to-TTL module model CP2102 and that the CH340 model does NOT work“. Some of our readers reported that they could only upload code when the ESP32 was powered with 5V. Measure the output voltage of your FTDI programmer (VCC and GND) using a Multimeter to ensure it’s providing 5V to your ESP32-CAM. If you get this exact error, it means that your camera OVX is not connected properly to your ESP32 board or you have the wrong pin assignment in the code. Sometimes, unplugging and plugging the FTDI programmer multiple times or restart the board multiple times, might solve the issue. The camera has a tiny connector and you must ensure it’s connected in the the right away and with a secure fit, otherwise it will fail to establish a connection. When you get this error, it might also mean that you didn’t select the right board in the define section or the pin definition is wrong for your board. You just need to uncomment the right camera module and comment all the others: //#define CAMERA_MODEL_WROVER_KIT Make sure you select the right camera module in your projects. In this example, we’re using the CAMERA_MODEL_AI_THINKER, so it’s the one that is enabled.
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