IEEE Spectrum on MSN

A new way to spray paint color

Dial up hues with this Arduino-powered, on-demand spray-can mixer ...
In this video, I created a blood oximeter by using the MAX30105 particle sensor to figure out the changes in color of passing ...
White light illumination in combination with an RGB receiver, allows the sensor to detect colours realistically and reproducibly – regardless of material, surface or changing ambient light conditions, ...