So far I've got the piezo sensor picking up my heart beat on my wrist, The heart rate is displayed on a 1602 LCD screen. For better visuals from a distance I added a red LED and a piezo speaker. I currently received a DS18B20 temperature sensor which looked great and came in the waterproof enclusore. But after added the code and library to my project I soon realized that it was too slow and messed up my timing for my piezo vibration sensor. My plan to over come this is to put a LM35 into the DS18B20 steal enclosure.