assigning CHSV properties

Projects Programming
1

Hi,
I have this issue, that I can't understand with assigning CHSV member hue to a CHSV variable I made.
It is within a function, but I don't think that is the issue, since I declaired the variable outside of the function.

#include <FastLED.h>
#define LEDTYPE WS2812B                //when changing strips
#define PL 9                           // LED pin
#define STRIP 60                       //num LED in strip

//User contants
#define NOG 3
#define GROUP_SIZE 7

CRGB led[STRIP]; 
byte hue;
byte sat;
byte val;
CHSV ledHSV[STRIP] = CHSV(hue, sat, val);
bool even;
int ID[NOG]; 
int groupNum;
CHSV color[NOG];
int lastGroup = STRIP % GROUP_SIZE; 
int colorIndexLastGroup = ((STRIP - lastGroup / GROUP_SIZE) % NOG + 1); 
bool colorReady = false;
int colorIndex = 0;

void setup() {
  Serial.begin(9600);
  delay(200); 
  Serial.println("setup");
  FastLED.addLeds<LEDTYPE, PL, GRB>(led, STRIP);                                                                     //strip details
  if (STRIP % 2 == 0) { 
    even = true;
  } else {
    even = false;
  }
}

void makeColor(int groupNum, byte hue, byte sat, byte val) {

  color[groupNum - 1] = CHSV(150, sat, val); // -1 so that the array starts at 0
  color[groupNum - 1].hue = (byte) 150;
  Serial.println("hue"); //whats up with the hue? i pass a different one
  Serial.println(hue);
  Serial.println(groupNum);
  Serial.println(color[groupNum].hue);
}

void loop() {
  if (!colorReady) {
    makeColor(1, 220, 250, 255);
   colorReady = true;
  }
}
2

12Vfan:
I have this issue, that I can't understand with assigning CHSV member hue to a CHSV variable I made.

Perhaps you'd share with us what "this issue" is?

3

Hi,
I have this issue, that I can't understand with assigning CHSV member hue to a CHSV variable I made.
It is within a function, but I don't think that is the issue, since I declaired the variable outside of the function.

#include <FastLED.h>
#define LEDTYPE WS2812B                //when changing strips
#define PL 9                           // LED pin
#define STRIP 60                       //num LED in strip

//User contants
#define NOG 3
#define GROUP_SIZE 7

CRGB led[STRIP]; 
byte hue;
byte sat;
byte val;
CHSV ledHSV[STRIP] = CHSV(hue, sat, val);
bool even;
int ID[NOG]; 
int groupNum;
CHSV color[NOG];
int lastGroup = STRIP % GROUP_SIZE; 
int colorIndexLastGroup = ((STRIP - lastGroup / GROUP_SIZE) % NOG + 1); 
bool colorReady = false;
int colorIndex = 0;

void setup() {
  Serial.begin(9600);
  delay(200); 
  Serial.println("setup");
  FastLED.addLeds<LEDTYPE, PL, GRB>(led, STRIP);                                                                     //strip details
  if (STRIP % 2 == 0) { 
    even = true;
  } else {
    even = false;
  }
}

void makeColor(int groupNum, byte hue, byte sat, byte val) {

  color[groupNum - 1] = CHSV(150, sat, val); // -1 so that the array starts at 0
  color[groupNum - 1].hue = (byte) 150;
  Serial.println("hue"); //whats up with the hue? i pass a different one
  Serial.println(hue);
  Serial.println(groupNum);
  Serial.println(color[groupNum].hue);
}

void loop() {
  if (!colorReady) {
    makeColor(1, 220, 250, 255);
   colorReady = true;
  }
}

The output on serial monitor is:
setup
hue
220
1
0

I expect to get this:
setup
hue
220
1
220

what am I doing wrong?
I want the variable color to hold that input also outside of the function

4

I try to assign a value but as shown in the serial output I get a different value.

I see I posted this twice by mistake, how do I delete a post?

I thank any helpers

5

Duplicate topics merged

6

Here's your problem:

color[groupNum - 1].hue = (byte) 150;
...
Serial.println(color[groupNum].hue);
7

Thanks a lot, not sure how I missed it :smiley: