So I am currently working on a fitness device that uses the CC2650 Bluetooth module(this module interacts with your smart phone), the MK-II booster pack(this displays the pedometer part of my project and I have feeling I would have to attach the heart rate to this) and the TM4c123 board ( where the code is uploaded to). I was wondering if there is a heart rate monitor that would be best suited for me to use for my project. I was thinking of using the "Low Power EKG & Heart Rate Monitor Reference Design, Featuring the MSP430FG439" but I am not sure if it would work any help would be greatly appreciated.