Python Serial Communication (Pyserial) Tutorial

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.

Learn more

https://codingcompiler.com/hidden-features/
https://codingcompiler.com/py-test/
https://codingcompiler.com/profiling/
https://codingcompiler.com/performance-optimization/

LEAVE A REPLY

Please enter your comment!
Please enter your name here