set-pixel-color

awgrover/adafruitneopixel/set-pixel-color

No description
set-pixel-color
@/set-pixel-color
adafruitneopixel@/adafruitneopixel
nnumber
rnumber
gnumber
bnumber
triggerpulse
set-pixel-color
adafruitneopixel
n
r
g
b
trigger
dev
done
donepulse
dev@/adafruitneopixel
To use the node in your project you should have the awgrover/adafruitneopixel library installed. Use the “File → Add Library” menu item in XOD IDE if you don’t have it yet. See Using libraries for more info.

C++ implementation

//-- void Adafruit_NeoPixel::setPixelColor(n, r, g, b)
// Our constructor namespace should be: awgrover__adafruit_neopixel_ll__adafruitneopixel
struct State {
  // not used
  };

{{ GENERATED_CODE }}

void evaluate(Context ctx) {

  // only act on trigger, inputs not relevant for this
  if ( !isInputDirty<input_trigger>(ctx) ) return;

  // var names are valid c++ because we got them from the arglist of the c++ method
  auto n = getValue<input_n>(ctx); // 
  auto r = getValue<input_r>(ctx); // 
  auto g = getValue<input_g>(ctx); // 
  auto b = getValue<input_b>(ctx); // 
  

  auto object  = getValue<input_adafruitneopixel>(ctx); // Adafruit_NeoPixel

  object->setPixelColor( n, r, g, b ); // void
  
  emitValue<output_dev>(ctx, object); // for chaining

  
  emitValue<output_done>(ctx, 1); // pulse
}