Baud rate is a measure of the speed at which data is transmitted over a serial communication channel. It is expressed in bits per second (bps). The baud rate must be the same at both the transmitting and receiving end of the communication channel in order for data to be transmitted successfully.
There are a few different ways to check the baud rate of a serial communication channel. One way is to use a terminal program. A terminal program is a software application that allows you to communicate with a serial device, such as a modem or a microcontroller. To check the baud rate of a serial communication channel using a terminal program, simply connect the terminal program to the serial device and then type the following command: