Python Flush Serial Port Buffer

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?

Python Serial.flush - 30 examples found. These are the top rated real world Python examples of serial.Serial.flush extracted from open source projects. You can rate examples to help us improve the quality of examples. Ik heb een serieel apparaat dat ik probeer te lezen input van. Ik het een tekenreeks ID r, en retourneert ID XX r (indien r een ASCII carriage return, hex 0x0d).Omdat de EOL optie op serial. This is because pyserial returns from opening the port before it is actually ready. I've noticed that things like flushInput don't actually clear the input buffer, for example, if called immediately after the open. I have a hardware setup with one lock controller Made in China, I have setted up everything as it was supposed to, trying to communicate with the device with Python Script, lsusb show me the device connected as 'Cygnal Integrated Products, Inc. CP210x UART Bridge / myAVR mySmartUSB light' the device address is 'ttyUSB0' i have runned several.

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