ESP32 Arduino Serial Communication 01 - The Basic of Two-Way Communication, Reassign UART Pins

The ESP32 microcontroller boasts powerful capabilities for serial communication, making it an ideal choice for projects requiring reliable and efficient data transfer. The ESP32 has three UART interfaces (UART0, UART1, and UART2), allowing it to handle multiple serial devices simultaneously. UART is widely used for communication with devices like sensors, GPS modules, and other microcontrollers. We can configure the baud rate, data bits, parity, and stop bits to tailor the communication to our needs. The ESP32 supports the Arduino framework, which provides easy-to-use libraries for serial communication. For instance, the HardwareSerial class simplifies UART communication.

List of Learning Materials :
A. Main Topic
₪ Hardware Serial On ESP32 : UART0, UART1, UART2
₪ Reassign UART Pin on ESP32
₪ Arduino - ESP32 Connection for Serial Communication
₪ Discuss about 5V tolerant on ESP32
₪ How to code for Uno to send data to ESP32
₪ How to code for ESP32 sends data to Uno
₪ How to code for Two-Way Serial Communication between ESP32 and Uno
₪ Code to reassign UART pin on ESP32 (Change the default UART Pins)
₪ Change the Serial object name of Serial2 or Serial1 to what we want
₪ How to use UART1 in ESP32, which is disabled on default

B. Others Topic
₪ HardwareSerial and SoftwareSerial on Arduino
₪ A basic about the data package and how to use it in the program

Download For Free the Project Files Here :
There are 5 programs available here,

--Playlist--
1. ESP32 Arduino Serial Communication 01 - The Basic of Two-Way Communication, Reassign UART Pins
2. ESP32 Arduino Serial Communication 02 - Sends Multiple Data Up to 20 Data, Handle Long Data Packets

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Regards,
CP

[artesalve]

great Tut, worked great. thanks for sharing the code, as you also sell it : )

[_LamVinhThuan]

Why have 2 baud rates? I don't get it. I think connecting them to serial monitor with the same baud rate that we send from arduino to esp32. Can you explain it, please!

[renznormanpalma]

do you know how to connect serial comm. esp cam to arduino uno?