C Example — Serial Port

gcc -o serial_example serial_example.c (you may need sudo for /dev/ttyUSB0 ):

int fd = serial_open(device, baud); if (fd < 0) return EXIT_FAILURE; serial port c example

Here’s a practical for serial port communication on Linux/POSIX systems. It demonstrates opening, configuring, reading, writing, and closing a serial port. Serial Port Communication in C – Complete Example #include <stdio.h> // Standard I/O #include <stdlib.h> // Exit functions #include <fcntl.h> // File control (open) #include <termios.h> // Terminal I/O (serial config) #include <unistd.h> // POSIX (read, write, close) #include <string.h> // String operations int serial_open(const char *device, speed_t baud) IXOFF gcc -o serial_example serial_example

int main() const char *device = "/dev/ttyUSB0"; // Change to your port speed_t baud = B115200; if (fd &lt