Bikeforums.net is a forum about nothing but bikes. Our community can help you find information about hard-to-find and localized information like bicycle tours, specialties like where in your area to have your recumbent bike serviced, or what are the best bicycle tires and seats for the activities you use your bike for.chuckb
12-18-10, 09:10 AM
Check out "Heart Rate". You cover the rear camera lens with your finger and then it measures your pulse by turning on the flash LED and monitoring the light that gets in through your finger. As the blood pulses in your finger, the light transmission goes up and down. The program graphs that and tells you your HR. I use it to measure resting HR in the morning. Works well, and it's free!
This is the principle of a "pulse hypoximeter" and now you can have one for free on the iPhone. Only works on iPhone 4 I think.
This is the principle of a "pulse hypoximeter" and now you can have one for free on the iPhone. Only works on iPhone 4 I think.