Plotting Live Sensor Data with Python

The Raspberry Pi (along with many other single board computers) offers the ability to directly connect to low-level hardware through its GPIO header. With this, we can communicate with sensors, take measurements and even use languages like Python to dynamically create graphs for us!

Sampling and plotting temperature data on a Raspberry Pi

The ability to programmatically create graphs can be extremely useful if you want to set up some kind of monitoring system or dashboard to, say, keep an eye on your room’s temperature. This could also be useful in classrooms to give students immediate feedback for sensor data, as well as create professional plots for reports.

Matplotlib is a plotting package for Python that works very similarly to the plotting functions found in MATLAB. If you’re looking to find out more about matplotlib, check out our newest Python tutorial:


Graph Sensor Data with Python and Matplotlib

July 23, 2018

Use matplotlib to create a real-time plot of temperature data collected from a TMP102 sensor connected to a Raspberry Pi.

If you were going to make an interactive dashboard that shows live graphs, what kind of data would you want to show? I may or may not be looking for ideas for my next tutorial…

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