White light includes all primary colors (ROYGBV). Remember prisms from elementary school? This prism separates Red, Orange, Yellow, Green, Blue, and Violet from white light! I do want to point out, Violet does not mean purple! It is the "roses are red, violets are blue" color.
Violet is a flower. Click here to see some. https://en.wikipedia.org/wiki/Viola_(plant) |
Click this button see what was taken out after surgery. Warning: somewhat graphic image.
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Measuring the Heart BeatHere is a video that shows a similar sensor to what you will build. This way, you know what to expect. We will use a sensor to get a plot of our heartbeat. Specifically, the sensor measures the IR light going through/off your skin. As blood pumps, this value changes.
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