Hi,
I have a sketch here where I use the MCP23017 chip on pins 12 and 13 (using sd card in 1-bit mode)
https://github.com/alanesq/esp32cam-demo

Hi,
The vin pin will be expecting 5v (i.e. the power from the usb socket)
the 3.3v pin on the other side is the power going to the esp32 module

Another thing always worth checking with an esp project is the power supply, I can't tell you how many times I have forgotten this myself and wasted hours on a problem only to discover it was just an issue with the 5v supply.

Hi,

I had similar problems with my esp8266 projects and it turned out the wifi was going in to a sleep mode after a length of inactivity

On the ESP32 (Arduino IDE) the command to prevent this is: WiFi.setSleep(false);

Hi, I think the limiting factor will be how fast data can be written to the sd card This sketch is the best I have seen for recording video but the camera can capture the images much faster than they can be written to the sd card (at least when I tried it) https://github.com/mtnbkr88/ESP32CAMVideoRe...

Hi, The available pins are very limited on the esp32cam, my best understanding is: If using the sd card (must be in 1-bit mode) the main io pins available for general use are 13 and 12 (12 must not be high at boot), 14, 2 & 15 should also be available if you are not using the SD Card. You can also u...

This thread may be of interest
https://www.esp32.com/viewtopic.php?t=12067

Hi,
The 30pin Devkit is probably a good one to start with as they are readily available on eBay and cheap
This may be of help: https://randomnerdtutorials.com/getting ... ith-esp32/
BTW - This is an excellent website, full of lots of information

I know it seems trivial, but are you sure the power to the esp32 is good?
I can't tell you how many hours I have wasted chasing strange problems like this only to discover it is just a power issue.

If you disconnect then reconnect the power supply to the esp32cam board whilst not disconnecting the FTDI board from your computer this should have the same effect as pressing the reset button on the esp32cam module If you go in to the DHCP settings on your router you should be able to see what IP a...