UPDATE2: On 8 January 2026, a paper on Rapendula was published in the European Journal of Physics [1].

UPDATE 1: In May 2025, the project achieved recognition by winning first prize in the Instructables contest “All Things Pi.” A big thank you to the Instructables teams!

I have recently published another educational project on my Instructables website. I called the device RaPenduLa for the RaspPi Pendulum Laboratory, and it is a video platform for studying mechanical oscillations. It uses a Raspberry Pi Zero W2 equipped with a camera module to record the motion of pendulums at high speed. The interesting part happens through video analysis: using Python and the fantastic OpenCV library, RaPenduLa can track the precise path of a pendulum’s tip and help visualize its oscillatory behavior in two dimensions.

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