xanthium-enterprises/linux-serialport-programming-using-c-termios-api

• In this repo ,You will find code for programming the serial port of your Linux distribution(Ubuntu,Fedora,Arch,Linux Mint) using C language.
• We will also Learn to perform Bi-Directional Serial Communication between a Linux PC and an Arduino UNO
• Here we will be using the native API's provided by the Linux System like the
  • termios structure.
  • read() system call
  • write() system call
• to configure the serial port of our linux system.
• Code is written in Pure C language and compiled using GCC.

A detailed writeup of the Linux serial Port Programming tutorial can be found using the below link

• Linux Serial Port Programming tutorial for the Absolute Beginner

The above image shows how to connect the Arduino board with the Linux PC for Serial Communication.

The above image shows how to interface bare microcontrollers like 8051,ATmega328P,MSP430 with linux serial port using a USB to Serial Converter.

The Code can be compiled using GCC on any modern Linux Systems.

gcc serial_port_code.c -o serial_port_code

Code tested on

• OS :Fedora Linux 42 (Workstation Edition) x86_64

• Kernel :Linux 6.14.9-300.fc42.x86_64

• Compiler :gcc (GCC) 15.1.1 20250521 (Red Hat 15.1.1-2)

• OS : Ubuntu 24.04.2 LTS x86_64

• Kernel : 6.11.0-26-generic

• Compiler :gcc (Ubuntu 13.3.0-6ubuntu2~24.04) 13.3.0