Introduction - If you have any usage issues, please Google them yourself
Use: 1. In the baud rate to set the communication baud rate. In milliseconds to the wait of the number of milliseconds to greater than or equal to 20, which can guarantee the success rate of the transmitting and receiving data. The top of the string to write text box write the data to be sent point WRITE to send data, then you can read string in the text box to see the data sent back from the underlying equipment (of course, specific hair and the receipt of what depends on the equipment you use specific agreements). point EXIT to exit the program