Connecting ESP32-CAM(AI THINKER) with Arduino Uno (R3) without UART?

Projects General Guidance
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I would like to know if its possible to connect this two boards without UART or any wired connection. I did a bit of gpt and it said i could but i just want to confirm it from the experts here, im an absolute beginner (btw). The uno should also be using a bluetooth module JDY-16.

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Hi @mechdev

I'm not sure I understood correctly what you mean by this. Please provide a more detailed description of what you mean by "connect" in a reply on this forum topic to help us to understand it.

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i meant connect like physically, would a wireless connection between this two boards work if the uno has a bluetooth and not using wifi and the esp32 is using wifi for a web interface or application to control a servo connected to the uno via bluetooth?

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Welcome to the forum

The Uno R3 does not itself have any means to connect to another device wirelessly but you could perhaps use an add on board such as an HC-05 Bluetooth module. What is the purpose of the connection and what data do you want to pass between the boards ?

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i want to control a servo that is connected to the uno, i do know that i could just connect the servo to esp32 itself but my setup is i have a servo with wires connected to the arduino, external battery also connect to arduino, seperate esp32 just to host a web server to control the uno with a bluetooth module like HC-05 like you suggested. will use a laptop to access the web application to control the arduino. Should i just connect the uno and esp32 together then like how most people do it?

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If you can I would suggest that you use the ESP32 for everything. Are you using the camera for anything or just using the ESP32 on the board ?

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i have two esp32cam one for camera the other for controling the servo motors

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Are you trying to connect 3 boards ?

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yes, i have 6 in total: 2 esp32-cam, 3 arduino uno expansion boards, 1 L298N motor driver, are this compatible to be controlled wireless?

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The two ESP32 boards can communicate with one another wirelessly. What do you mean by “3 arduino uno expansion boards” ?

What is the purpose of your project and what is it meant to do ?

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its a mini ground vehicle using 2 dc motors, a tft 1.8 display 128x160, and an arm to hold small stuff (this is what the servo for). So its kinda like a mini tank rover. Most of the boards i use are premade i dont make my own PCB cause thats too complicated for me right now. Oh and also a camera. all to be controlled wirelessly no remote

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Have you already purchased all the boards?
The ESP32 CAM was not a good choice for what you want to do.

Have a look at this:

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Have fun!