We've made some improvements and updates to our Pulse Sensor Arduino firmware and Processing software. Now, you can view the live Pulse Sensor data right in the Arduino Serial Potter! And our Processing Sketch has a much improved Serial Port selection process! Check it out!
PulseSensor_Amped_Arduino on github
PulseSensor_Amped_Processing_Visualizer on github
The image below is from the Arduino Serial Plotter. The red trace is live heart beat data, the yellow trace is the time between each beat (IBI), and the blue trace is beats per minute (BPM).