What is 38400?

38400 is a baud rate commonly used in serial communication protocols. It means that 38,400 bits of data can be transmitted per second. It is a fast communication speed compared to lower rates such as 2400 or 9600 baud which are used in older devices. This higher baud rate allows for quicker transfer of data between devices, making it useful in applications such as industrial control systems, robotics, and consumer electronics. However, the higher speed also requires more reliable connections and shielding against electromagnetic interference to prevent data errors.