Pyserial is a Python module that allows developers to access and work with serial ports in Python. It provides a simple interface for communicating with devices over serial ports.

What is the readline() function in Pyserial?

The readline() function is a method provided by the Pyserial module that reads a line of data from a serial port. It waits until a newline character is received before returning the data.

How can I set a custom end-of-line character with readline() function?

You can set a custom end-of-line character with the readline() function by passing the desired character as an argument to the function. For example, to use a carriage return ( ) as the end-of-line character, you can call the readline() function like this: line = ser.readline().decode('utf-8').strip(' ')

What is the default end-of-line character used by Pyserial?

The default end-of-line character used by Pyserial is a newline ( ) character. This means that the readline() function will wait until it receives a newline character before returning the data.

Can I use multiple end-of-line characters with readline() function?

Yes, you can use multiple end-of-line characters with the readline() function by passing a list of characters as an argument to the function. For example, to use both a newline and carriage return as end-of-line characters, you can call the readline() function like this: line = ser.readline().decode('utf-8').strip(' ')

Pyserial 2.6: Custom End-Of-Line with Readline() Function

If you’re working with Arduino or other microcontrollers, then you’re probably familiar with Pyserial. This powerful Python library is essential when it comes to serial communication between computers and electronic devices. However, did you know that Pyserial 2.6 has a custom end-of-line feature that you can use with the readline() function?

The readline() function is a commonly used method for reading from serial ports. Unfortunately, if you’re working with devices that send data with non-standard line endings, such as \r instead of \n, then the readline() function might not work as expected.

Luckily, Pyserial 2.6 introduced the custom end-of-line feature, which allows you to specify the characters that indicate the end of a line. This means that you can use readline() with any device that sends data with non-standard line endings without any issues.

In this article, we’ll show you how to use Pyserial 2.6’s custom end-of-line feature with the readline() function. We’ll also explain some common line-ending issues that you might encounter and provide tips on how to troubleshoot them. If you’re interested in learning how to make your serial communication more robust and reliable, then read on!

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“Pyserial 2.6: Specify End-Of-Line In Readline()” ~ bbaz

Introduction

Pyserial is a popular Python library for serial communication with various devices such as microcontrollers, sensors, and other hardware components. The library provides various functions to establish communication with these devices, such as read(), write(), and readline(). One of the features of Pyserial 2.6 is the custom end-of-line character support with the readline() function. In this article, we will discuss this feature and compare it with other libraries that provide similar functionality.

Background

In serial communication, data is transmitted in bits or bytes between two devices. The data is sent sequentially, and each byte is typically terminated with a special character called the end-of-line (EOL) character. This character signals the end of a message and allows the receiver to know when to start processing the incoming data. Different devices use different EOL characters, such as new line, carriage return, or a combination of both.

The Readline() Function

The readline() function in Pyserial reads a line of text from the serial port until it encounters the EOL character. In Pyserial 2.6, this function supports custom EOL characters, which means that users can specify the EOL character they want to use when reading data from the port. By default, the function uses ‘\n’ as the EOL character.

Comparison with Other Libraries: Serial and Pyserial 3.x

There are many other Python libraries that provide similar functionality for serial communication, such as serial and Pyserial 3.x. Both of these libraries have the readline() function that reads data from the serial port until it encounters the EOL character. However, neither of these libraries supports custom EOL characters, which is a disadvantage compared to Pyserial 2.6.

Serial

The serial library is a popular Python library for serial communication. It provides various functions to establish communication with serial devices, such as read(), write(), and readline(). The readline() function in serial reads data from the serial port until it encounters the default EOL character ‘\n’.

Pyserial 3.x

Pyserial 3.x is the latest version of Pyserial, and it provides enhanced support for different platforms and operating systems. The library provides various functions to establish communication with serial devices, such as read(), write(), and readline(). However, the readline() function in Pyserial 3.x reads data from the serial port until it encounters the default EOL character ‘\n’.

Customization with Pyserial 2.6

One of the benefits of using Pyserial 2.6 is the ability to customize the EOL character when reading data from the serial port using the readline() function. This feature allows users to select the EOL character that their device uses instead of relying on the default ‘\n’ character.

Example Code

To use custom EOL characters with Pyserial 2.6, users can simply specify the EOL character as an argument when calling the readline() function. The following code shows an example of reading data from the serial port with custom EOL characters:

import serialser = serial.Serial('/dev/ttyUSB0', 9600)ser.readline(eol=b'\r\n')

Conclusion

In conclusion, Pyserial 2.6 provides a useful feature for serial communication by allowing users to customize the EOL character when reading data from the serial port using the readline() function. This functionality is not available in other similar libraries such as serial and Pyserial 3.x, making Pyserial 2.6 an excellent choice for developers who need this feature. The code examples and explanations provided in this article should help developers understand how to use this feature.

	Pyserial 2.6	Serial	Pyserial 3.x
EOL Character Customization	Yes	No	No
Default EOL Character	‘\n’	‘\n’	‘\n’
Supported Platforms	Windows, Linux, macOS	Windows, Linux, macOS	Windows, Linux, macOS

Thank you for taking the time to read this article about Pyserial 2.6 and the custom end-of-line with the readline() function. We hope that you found it informative and helpful in your own programming projects.

Pyserial is a powerful tool that allows you to control and communicate with various serial devices from Python. One of its most useful features is the ability to specify custom end-of-line characters when using the readline() function. This can be particularly useful if you are working with devices that use non-standard line endings or if you want to improve the efficiency of your code by customizing how data is read and processed.

Overall, Pyserial provides a wealth of options for controlling and communicating with serial devices in Python. Whether you are working on a small personal project or a larger industrial application, Pyserial 2.6 and its custom end-of-line capabilities can help streamline your code and improve the reliability of your programs. Thank you again for reading and we hope that you continue to explore the many possibilities that Pyserial has to offer!

Pyserial 2.6: Custom End-Of-Line with Readline() Function

Introduction