I want to make a simplified version of Rafaël Lozano’s project. In my forum post, I’d like to explain that I want to have five circles side by side. Each circle will display a person’s heartbeat, measured with a heart rate sensor connected to an Arduino. The first circle’s size will pulse in sync with the heartbeat. Once the measurement is done, that heartbeat data should be saved and looped, so the first circle keeps showing it. Then when a new person places their hand on the sensor, the previous heartbeat shifts to the second circle, and the new heartbeat is displayed in the first circle. This shifting continues through all the circles. My question is: how should I save the heartbeat data and what format should I use to save it? And how do I shift the heartbeat data between circles?