We've been playing with the Raspberry Pi lately. We want to share some ways to connect PulseSensor 2 the Pi.
The main repository has 3 examples of getting PulseSensor data into your Pi. You can find a link to the entire github repository HERE.
Connect an Arduino to your RasPi and read data from the USB port!
Explore the Processing Hardware I/O library
Fly close to the metal in this low-level C executable!