An engaging way to explore the LEDs and NeoPixels is by letting the board make a “face". The orientation of the board is up to the students: is the LED the mouth or the eye (or the nose?). What are the NeoPixels used to communication. Below are some samples just to start their imaginations.
LED as the eye
When we use the LED matrix as the eye, it allows for multiple expressions through the eye shape and location. With the NeoPixels, students can use both the color and the shape to communicate their expressions and mood.
Turn it on its head
The NeoPixels can also be used as the eyes for the face. The LED matrix can now be either a mouth or a nose. How many faces can students make this way?