Ideas for Areas to Explore

  • Add a proper finger sensor for plotting pulses: Adafruit Forums: Get a CLUE about your Pulse :-)
  • Add more plotting modes:
    • min/avg/max per second/minute/hour would be useful for long-term monitoring.
    • show multiple plots on two y axis or two graphs, e.g. temperature and humidity.
  • Add some supression/pause between button press and volume source to prevent the physical impact being plotted.
  • Add x axis tick labels with time values and investigate the feasibility of a true oscilloscope-style output with a timebase set by the user.
  • Make an altimeter and vertical speed indicator with a plot mode and an instantaneous large-font display. cf. CLUE Altimeter, published after this guide was created.
  • Look at the new high performance ulab library for number crunching which could be used to post-process the sensor data.
  • Enhance the code to also work on the Circuit Playground Bluefruit with the Circuit Playground TFT Gizmo LCD screen.
  • Test the output to Mu particularly on the three channel plots and look at how to tailor the data sent to Mu.
  • Improve the performance of plotting by replacing the slow undrawing technique with a clear screen implemented using the new, fast displayio Bitmap fill() method.

Related Projects

Further Reading

Pulse sensor with three long wires
Pulse Sensor Amped is a greatly improved version of the original Pulse Sensor, a plug-and-play heart-rate sensor for Arduino and Arduino compatibles. It can be used by students,...
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shot of a Black woman's neon-green manicured hand holding up a Circuit Playground Bluefruit glowing rainbow LEDs.
Circuit Playground Bluefruit is our third board in the Circuit Playground series, another step towards a perfect introduction to electronics and programming. We've...
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Hand pressing buttons on circuit playground, then turning over to show TFT gizmo display an image of a friendly robot or snake
Extend and expand your Circuit Playground projects with a bolt on TFT Gizmo that lets you add a lovely color display in a sturdy and reliable fashion. This PCB looks just like a round...
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This guide was first published on Apr 01, 2020. It was last updated on Jun 15, 2024.

This page (Going Further) was last updated on Mar 08, 2024.

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