How can I use data from another program in Unity?

Hi, I've created a game and would like to use a webcam to monitor the heart rate of a player, the heart rate will then be used to change the players in game speed (faster the heart rate the faster the speed). I am using an open source program (https://github.com/thearn/webcam-pulse-detector) that gathers monitors the players heart rate, but I have no clue how to export this data and use it in unity.
Any help will be much appreciated, thanks.