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Python Pyserial Readline Example

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Python pyserial read example

Python serial port access library. Contribute to pyserial/pyserial development by creating an account on GitHub. Project: spi-flash-programmer Author: nfd File: spiflashprogrammerclient.py License: Creative.

It's useful to be able to read and plot serial data in real time (for example, you might want to monitor the output of a laser scanner or IMU). While this is a trivial task in MATLAB or LabVIEW, I wondered if there was a low effort way to do it for free.

I've known for a while that Python has an easy-to-use serial library, but I wasn't sure what kinds of plotting/graphing options might exist for Python. A quick search turned up Matplotlib – a MATLAB-like plotting API for Python. As it turns out, Matplotlib includes an animation API and a function called FuncAnimation, which can be used to animate data over time (or update a graph with some sensor data over time).

Readline

I'm using this page to document my attempt(s) to use Matplotlib to create a real time graph of data read from a serial port. Iphone data recovery software full version free download mac. For a proper introduction to Matplotlib, I'd recommend sentdex's Matplotlib video series.

Python Pyserial Readline Example
2012 Road Glide Ultra; Owner's Manual; 2012 Harley-Davidson Road Glide Ultra — Owner's Manual. Posted on 15 Mar, 2016 Model: 2012 Harley-Davidson Road Glide Ultra.

Python serial port access library. Contribute to pyserial/pyserial development by creating an account on GitHub. Project: spi-flash-programmer Author: nfd File: spiflashprogrammerclient.py License: Creative.

It's useful to be able to read and plot serial data in real time (for example, you might want to monitor the output of a laser scanner or IMU). While this is a trivial task in MATLAB or LabVIEW, I wondered if there was a low effort way to do it for free.

I've known for a while that Python has an easy-to-use serial library, but I wasn't sure what kinds of plotting/graphing options might exist for Python. A quick search turned up Matplotlib – a MATLAB-like plotting API for Python. As it turns out, Matplotlib includes an animation API and a function called FuncAnimation, which can be used to animate data over time (or update a graph with some sensor data over time).

I'm using this page to document my attempt(s) to use Matplotlib to create a real time graph of data read from a serial port. Iphone data recovery software full version free download mac. For a proper introduction to Matplotlib, I'd recommend sentdex's Matplotlib video series.

Items used

Python Pyserial Read Example

  • Laptop or PC running Ubuntu 18
  • Python 3.x
  • Matplotlib
  • pyserial
  • Arduino (or any programmable device with a serial port)

Installing matplotlib and pyserial on Ubuntu 18

Generating some fake serial data with an Arduino

To test my code, I used an Arduino to put some data on the serial port. Brother mfl pro suite mac. In the example code below, the arduino simulates a coin toss using the function random.

On each iteration of the main loop, a random integer between 0 and 1 is generated, and the relative frequency of getting one side of the coin or the other is updated. This data is then sent to the serial port as comma delimitted line, where the termination character is ‘/n'. That is, the serial data looks like this:

The idea is that I'm putting some data on a serial port over time, and now I can write a python script to read and plot it.

Creating the real time plot

References

Pyserial Readline Example

  • https://pythonhosted.org/pyserial/shortintro.html
  • https://www.youtube.com/watch?v=ZmYPzESC5YY
  • https://matplotlib.org/
  • https://matplotlib.org/api/_as_gen/matplotlib.animation.FuncAnimation.html#matplotlib.animation.FuncAnimation




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