This example demonstrates how serial communication can be implemented, how ports are opened, closed on Raspberry Pi to communicate with Arduino via COM Port RS232 by using CODESYS. The Demo set the ...

The Arduino code in the "serial_to_LCD" folder reads data from the Arduino serial port and displays it on the LCD screen (HD44780 compatible). It works both with the virtual serial port through the ...

If you use the Arduino IDE to program the ESP32, you might be interested in [Andreas Spiess’] latest video (see below). In it, he shows an example of using all three ESP32 UARTs from an Arduino ...

This circuit represents an interface converter between the UART pins of a microcontroller (with TTL levels) and a ‘standardised’ RS232 port with symmetric ±15-V levels. In contrast to the commonly ...