Free serial monitor6/15/2023 ![]() void HardwareSerial::begin (unsigned long baud. I was having a problem with building the software for this project in VScode/Platformio. The ESP32 has 3 different Serial Ports (UART).h> HardwareSerial SerialTwo(2) void setup() Hi! I'm trying to make two esp32 able to send and receive messages from each other in communication via Serial, using Serial2 on the board. for example, calling begin() twice to change the baudrate, // or when setting the callback before calling begin() The FTP functionality will be added to a main sketch that already uses HardwareSerial for the SIM800 to post data to a SQL database so I understand it is desirable to keep HardwareSerial. The SoftwareSerial library is inbuilt from Arduino IDE 1. The ESP32 has 3 In case of ESP32 this just has to be done in a slightly different way: The trick is to use HardwareSerial library to access UART 1 and 2 instead of Serial1 and Serial2.
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