// Input a value 0 to 255 to get a color value. // The colours are a transition r - g - b - back to r.

#define qsuba(x, b) ((x>b)?x-b:0) // Analog Unsigned subtraction macro. if result <0, then => 0. By Andrew Tuline. float vImpact0 = sqrt( -2 * GRAVITY * h0 ); // Impact velocity of the ball when it ...

Today, we’re going to explore the uses of addressable LEDs. Addressable LED is an easy way to add complex lighting effects to any project. Each addressable LED has an integrated driver that allows you ...