Data communication between esp 32 cam and arduino uno

Projects Programming
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how to communicate between esp32 cam and uno??

SoftwareSerial.h not work

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Is the ESP32 5V-tolerant?

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Welcome to the forum

What exactly does that mean ?

I note that you have connected the Tx and Rx pins on both devices whereas Tx on one should go to Rx on the other and vice versa

The ESP is a 3.3V device whilst the Uno is a 5V device so that may cause a problem as might using the hardware Serial pins on the Uno as they are used to upload code and for the Serial monitor

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yes

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Things to take into account

A). The ESP32CAM is NOT 5V tolerant.

B). Using the ESP32CAM programing ports for comms is not a good idea. As a note, by setting GPIO_NUM_0 to ground the ESP32CAM is put into programming mode.

C). Using the Uno's programing pins for serial comms is not going to work for you.

D). An Uno is not a proper power supply for a ESP32CAM.

What's the need for a ESP32CAM to talk to a Uno?

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thank you
I'll think of another way.

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