Exercise $4$A: Changing Brightness in Steps of $50$

$($Create a new project: so you have a separate copy of your code.$)$

Now change the program so that the first LED shows red, the second one green, and the third one blue. We want all three to have a light intensity of $0,$ then after a second, all three change intensity to $50,$ then $100,150,200,250,$ and back to $0.($VERY STRONG HINT: Do not use the pixel.setBrightness$()$ function. It is not intended for this purpose and very likely will break and$/$or confuse you later.$)$

#include "Particle.h$"$

#include "neopixel.h$"$

#define PIXEL$\_$PIN D$4$

#define PIXEL$\_$COUNT $3$

#define PIXEL$\_$TYPE WS$2812$

Adafruit$\_$NeoPixel strip $=$ Adafruit$\_$NeoPixel$($PIXEL$\_$COUNT, PIXEL$\_$PIN, PIXEL$\_$TYPE$)$;

void setup$()\{$

strip.begin$()$;

strip.show$()$;

$\}$

void loop$()\{$

for $($int brightness $=0$; brightness $<=250$; brightness $+=50)\{$

strip.setPixelColor$(0,$ strip.Color$($brightness$,0,0))$;

strip.setPixelColor$(1,$ strip.Color$(0,$ brightness, $0))$;

strip.setPixelColor$(2,$ strip.Color$(0,0,$ brightness$))$;

strip.show$()$;

delay$(1000)$;

$\}$

strip.setPixelColor$(0,$ strip.Color$(0,0,0))$;

strip.setPixelColor$(1,$ strip.Color$(0,0,0))$;

strip.setPixelColor$(2,$ strip.Color$(0,0,0))$;

strip.show$()$;

delay$(1000)$;

$\}$

Is this code correct?