Project
Heart-Rate Monitor
By:
Brad Graham, inventor, electronics hobbyist, and author
Topic
Skill Level
Biology and Biomedicine
![tiny blue star 1](/fragr/images/Free_Blue_Star_11x10.jpg)
![tiny blue star 2](/fragr/images/Free_Blue_Star_11x10.jpg)
![tiny blue star 3](/fragr/images/Free_Blue_Star_11x10.jpg)
![tiny blue star 4](/fragr/images/Free_Blue_Star_11x10.jpg)
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![The completed heart rate monitor](/fragr/images/HRM_intro.jpg)