Python Serial Communication (pyserial) enables manipulation of many other functions in Python programming language. Learn more here.
parameter details
port Device name e.g. /dev/ttyUSB0 on GNU/Linux or COM3 on Windows.
baudrate baudrate type: int default: 9600 standard values: 50, 75, 110, 134, 150, 200, 300, 600, 1200, 1800, 2400,
4800, 9600, 19200, 38400, 57600, 115200
Python Serial Communication (pyserial): Initialize serial device
import serial
Serial takes these two parameters: serial device and baudrate ser = serial.Serial(‘/dev/ttyUSB0’, 9600)
Read from serial port
Initialize serial device
import serial
Serial takes two parameters: serial device and baudrate ser = serial.Serial(‘/dev/ttyUSB0’, 9600)
to read single byte from serial device
data = ser.read()
to read given number of bytes from the serial device
data = ser.read(size=5)
to read one line from serial device.
data = ser.readline()
to read the data from serial device while something is being written over it.
for python2.7
data = ser.read(ser.inWaiting())
for python3
ser.read(ser.inWaiting)
ython Serial Communication (pyserial): Check what serial ports are available on your machine
To get a list of available serial ports use
python -m serial.tools.list_ports
at a command prompt or
from serial.tools import list_ports
list_ports.comports() # Outputs list of available serial ports
from the Python shell.