If you know the red, green, and blue components of the light that correspond to maximum reflectance, then you know the color of the object. Their sensor uses a four-lead RGB LED, but we suppose a ...

Arduino enthusiasts may be interested in a new single pixel scanning camera which is powered by an Arduino Uno combined with a TCS34725 sensor available from online stores such as Adafruit.

The new One Ultrasonic Range Finder sensor is included in the Sensor Explorer box. In StoryMode, students travel to the new world Post No. 34 ½ where they learn about measuring distance.