Where to start with Serial Communication between Arduino Nano and ESP32

Projects Programming
1

I have a voltage divider from the Nano's tx pin to the ESP32 rx pin.
Where do I start with the programming? I am wanting to only send information from the Nano TO the ESP32.

Thank you in advance. I have attempted searching for how to program this and was unable to find it, only how to wire it.

2

alexanderlambrou:
I have a voltage divider from the Nano's tx pin to the ESP32 rx pin.
Where do I start with the programming? I am wanting to only send information from the Nano TO the ESP32.

Thank you in advance. I have attempted searching for how to program this and was unable to find it, only how to wire it.

Are you expecting someone to guide you from scratch. No one's going to do that. You have to work on it on your own.

Btw why you are sending data from ESP32 to Nano, both are microcontroller boards. Share your project details, may be someone suggest you something better.

3

oliviasmithh900:
Are you expecting someone to guide you from scratch. No one's going to do that. You have to work on it on your own.

Btw why you are sending data from ESP32 to Nano, both are microcontroller boards. Share your project details, may be someone suggest you something better.

Sure, let me be more specific. Which library is needed for serial communication between two different devices?
I am using a TDS tester. The ADC on the ESP32 is not accurate enough for my needs. I need to gather the data on my Arduino Nano and send it to the ESP32.
If you can point me in the correct direction of the library I'll check out the documentation.

4

alexanderlambrou:
The ADC on the ESP32 is not accurate enough for my needs.

That's shocking considering that the Arduino's ADC is 10 bits. ADC in Arduino | Arduino
and the ESP-32's ADC is 12 bits. https://elektricstore.com/2021/03/12/esp32-adc-tutorial-how-to-use-adc-in-esp32/

.

5

If you can point me in the correct direction of the library I'll check out the documentation.

Using Serial.print() and Serial.read() seems like the obvious way

Have you tried it ?

6

This topic was automatically closed 120 days after the last reply. New replies are no longer allowed.