Changes system-wide settings for a serial device.
Device— The serial device to configure.
Baud Rate— The speed, in bits per second, at which the device should send or receive data.
Data Bits— The number of bits that make up a character of data.
Parity— Whether to send or receive an error detection bit, and how to use it.
Stop Bits— How many marked bits to send or receive after each character of data.
Arduino tutorials typically specify 9600 baud, with 8 data bits, no parity, and 1 stop bit. You might want to change the baud rate (on both ends — in your microcontroller firmware and using this node) to increase the speed, but you probably won’t need to change the other settings unless you’re working with a serial device designed before the mid-1980s.
Keywords: arduino, change, modem, rs-232, rs232, set, speed, usb