What I wanted was a slowly adjusting whole strip rainbow.

Tejkaran_Samra · October 5, 2016, 4:48pm

What I wanted was a slowly adjusting whole strip rainbow. There is still room for improvement but I thought I would show what I did

1 - So to begin with I wanted to light up a full strip with a single colour and then back down to black/empty, and repeat for the 3 colours (RGB): first code attempt - RGB rotations · GitHub

2 - I wanted to simplify it all. I knew that you can use the code ‘switch’ so I had a go and voila, a bit easier to see it all(code) and I could now do more colours

gist.github.com

https://gist.github.com/Tejkaran/575da5fd6d36f214b119ecd49a2a7ec1

RainbowsV2

#include "FastLED.h"
#include <SPI.h>
#define NumPixels 150       // number of LEDs in strip - count starts at 0, not 1
#define DataRate_Mhz 12
#define DataPin 11
#define ClockPin 13
 
CRGB leds[NumPixels];

int r = 0;

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3 - final bit, messed around a little but realised I can now blend all the colours together by adding or subtracting the right colour. Also can adjust timings and light intensity

gist.github.com

https://gist.github.com/Tejkaran/fc14642e71f7f7838066608b7681b9d1

Single strip rainbow

#include "FastLED.h"
#include <SPI.h>
#define NumPixels 150       // number of LEDs in strip - count starts at 0, not 1
#define DataRate_Mhz 12     // how fast data refreshes at
#define DataPin 11          // data pin
#define ClockPin 13         // clock Pin
 
CRGB leds[NumPixels];

int r = 0, g = 0, b = 0;

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Hope it helps someone

feel free to use the code if you find it useful