PySerial API - pySerial's documentation, With no timeout it will block until the requested number of bytes is read. Note, for some USB serial adapters, this may only flush the buffer of the OS and not all Return type: bytes Read size bytes from the serial port. Emulator games for mac. If a timeout is. Ser.flushInput #flush input buffer, discarding all its contents. Ser.flushOutput#flush output buffer, aborting current output. Re: Python serial port (UART) tutorial. This one isn't working, I think it's because is splited ( the original buffer ) in diffent buffer and i need to.

Jan-18-2018, 12:05 PM

Hello, I'm new in python. I use an Arduino to sensing, and I wrote a small python program to read the data from usb. I use Python 3.5. The program is this:
When I execute it, I get only the first sentence repeatedly of what Arduino sends, not the rest of of the calculations. So I suppose I should flush the Serial buffer. When I flush the serial with the command flushInput() as I read from here: http://pyserial.readthedocs.io/en/latest..l_api.html
I get:
flushInput()
NameError: name 'flushInput' is not defined

Jan-18-2018, 12:48 PM

Hello and welcome to Python and our forums!
There seems to be a little change in API, see if this will fix your error:
http://pyserial.readthedocs.io/en/latest..put_buffer

Jan-18-2018, 02:21 PM (This post was last modified: Jan-18-2018, 02:21 PM by python_beginner.)

Thank you,
I changed the command, but I still get:
I cannot understand! I import serial and time. What is wrong?

Jan-18-2018, 03:15 PM

You need to do
reset_input_buffer() is a method of Serial class.

Jan-18-2018, 10:02 PM

(Jan-18-2018, 12:05 PM)python_beginner Wrote:

You read one line, then enter an infinite loop and print that one line repeatedly. If you want to read more lines, do the reading inside the while loop.

Jan-19-2018, 11:13 AM

Thank you both your help. It works now. But it prints Escape characters with the data. Is there a way to avoid that?

Possibly Related Threads…
Thread		Author	Replies	Views	Last Post
Reading Serial data	Moris526	6	702	Dec-26-2020, 04:04 PM Last Post: Moris526
Strange Problem when reading from excel	faryad13	3	441	Nov-04-2020, 03:48 PM Last Post: DeaD_EyE
Reading integers from a file; the problem may be the newline characters	JRWoodwardMSW	2	594	Jul-14-2020, 02:27 AM Last Post: bowlofred
Reading serial data and saving to a file	Mohan	1	1,692	May-25-2020, 04:18 PM Last Post: pyzyx3qwerty
Problem reading data from file	player1681	2	690	May-22-2020, 08:57 AM Last Post: player1681
Problem with reading and writing to file.	darktitan	2	797	Jul-20-2019, 06:06 PM Last Post: darktitan
Python problem reading file	Lafayette	0	630	Jun-13-2019, 09:04 PM Last Post: Lafayette
Reading mixed ASCII/binary serial input	N8UR	1	1,607	Jun-11-2019, 02:49 PM Last Post: N8UR
Reading data from serial port as byte array	vlad93	1	5,981	May-18-2019, 05:26 AM Last Post: heiner55
Serial USB problem	DPaul	3	1,381	Feb-21-2019, 02:18 PM Last Post: Larz60+

Python Flush Serial Port Buffer Example

Users browsing this thread: 1 Guest(s)

Python Flush Serial Port Buffer Example

Python Flush Serial Port Buffer Tube