Hot answers tagged


There are no programmers for ESP32. It only accepts Serial upload over bootloader. Versions of IDE before 1.8.13 displayed programmers for all board support packages, that is why a programmer could be selected. Now only programmers for package of the selected board are available. But programmers are used only with the "Burn bootloader" or "...


The older version of Arduino IDE. 1.8.12 worked.


The message: Brownout detector was triggered is being generated by your ESP32 because there is a problem with the Vcc power to the module. Check the following: Your USB cable. Some cables are just plain cheap and can't supply the power the ESP32 needs. Get a better one. Some PCs are not able to supply enough power from their USB ports to supply the ...


I ran into this issue with the same setup. This Github issue seems identical to ours, and applying the fix in this comment quickly resolved it for me: Good luck!


According to the schematic and pin notes, I don't think you can use GPIO4 as an ADC input (it can be used as a GPIO pin and technically it can be configured as an ADC pin), but it has a 47k pull-up resistor on it, making it not possible to be used as an ADC input. Depend on your hardware wiring skill, one alternative is to use an external ADC chip with i2c ...


The limit isn't the camera - it's the memory. At 3 megapixels you have 3145728 pixels. At 3 bytes per pixel (8 bits each of red green and blue) it requires 9437184 bytes to store the image. That's more than can fit into the 8MB PSRAM. 1600x1200 will probably be one of the standard resolutions that the specific camera in use can capture, and is probably the ...


This stung me too. I found increasing the frame buffer count helped. camera_config_t config; config.fb_count = 10; // Or some other number


Look I've just had that problem for a month and if you're using esp32- ov2640 look the camera reference because the one I've had was TY 0V2640-V2.0 and what I've saw it's like a cheap copy of the normal camera, so be careful. I had to buy a new one because everything looked like a broken image, although all the config worked fine. Even changing the ...

Only top voted, non community-wiki answers of a minimum length are eligible