Trigger camera esp32 with Arduino mega2560

Projects General Guidance
1

I have a mega 2560 were I use 28 of the pins for digital in and out, the board have a Ethernet module.
Commands are comming to the board via http commands. When a command is received a digital out is send to a pin at that same time I would like to trigger the esp32 camera to take a picture, but I need to make the image with the date time and the pin number and then send the image to a webserver.
Is there anyway I can communicate with esp32 via the tx and rx or should I get a Bluetooth module for the mega 2560 and communicate with the esp32.

If there is a better way let me know, thanks.
If there is any example out there please post the links.

Thanks for any help.
KimHJ

2

if your mega and esp32 cam inside same box, you don't need a bluetooth.
you can communicate through serial (rx/tx) comunication

mega2560 had 4 serial comunnication
Serial0(TX0/RX0) already used by ethernet shield,
use Serial1(TX1/RX1) to communicate with ESP32cam

3

Thanks. Do you know of any examples using the tx/rx to communicate with esp32?

4

kimhj50:
Thanks. Do you know of any examples using the tx/rx to communicate with esp32?

here is a project with the same vibe,

https://www.instructables.com/Capture-Send-Images-With-ESP32-Cam-Using-ESP8266-W/
5

Thanks, but it does not show how to use tx/rx to get the image from the esp32.