Devo escludere eventuali modifiche hardware, in quanto ho i profili di alluminio che sono già saturi di cavi
Oggi ho fatto diverse prove, e c'è uno sketch di esempio con la libreria neopixelbus che va come una scheggia e non capisco il perchè:
// NeoPixelCylon
// This example will move a Cylon Red Eye back and forth across the
// the full collection of pixels on the strip.
//
// This will demonstrate the use of the NeoEase animation ease methods; that provide
// simulated acceleration to the animations.
//
//
#include <NeoPixelBus.h>
#include <NeoPixelAnimator.h>
const uint16_t PixelCount = 1365; // make sure to set this to the number of pixels in your strip
const uint8_t PixelPin = 2; // make sure to set this to the correct pin, ignored for Esp8266
const RgbColor CylonEyeColor(HtmlColor(0x7f0000));
NeoPixelBus<NeoGrbFeature, Neo800KbpsMethod> strip(PixelCount, PixelPin);
// for esp8266 omit the pin
//NeoPixelBus<NeoGrbFeature, Neo800KbpsMethod> strip(PixelCount);
NeoPixelAnimator animations(2); // only ever need 2 animations
uint16_t lastPixel = 0; // track the eye position
int8_t moveDir = 1; // track the direction of movement
// uncomment one of the lines below to see the effects of
// changing the ease function on the movement animation
AnimEaseFunction moveEase =
// NeoEase::Linear;
// NeoEase::QuadraticInOut;
// NeoEase::CubicInOut;
NeoEase::QuarticInOut;
// NeoEase::QuinticInOut;
// NeoEase::SinusoidalInOut;
// NeoEase::ExponentialInOut;
// NeoEase::CircularInOut;
void FadeAll(uint8_t darkenBy)
{
RgbColor color;
for (uint16_t indexPixel = 0; indexPixel < strip.PixelCount(); indexPixel++)
{
color = strip.GetPixelColor(indexPixel);
color.Darken(darkenBy);
strip.SetPixelColor(indexPixel, color);
}
}
void FadeAnimUpdate(const AnimationParam& param)
{
if (param.state == AnimationState_Completed)
{
FadeAll(10);
animations.RestartAnimation(param.index);
}
}
void MoveAnimUpdate(const AnimationParam& param)
{
// apply the movement animation curve
float progress = moveEase(param.progress);
// use the curved progress to calculate the pixel to effect
uint16_t nextPixel;
if (moveDir > 0)
{
nextPixel = progress * PixelCount;
}
else
{
nextPixel = (1.0f - progress) * PixelCount;
}
// if progress moves fast enough, we may move more than
// one pixel, so we update all between the calculated and
// the last
if (lastPixel != nextPixel)
{
for (uint16_t i = lastPixel + moveDir; i != nextPixel; i += moveDir)
{
strip.SetPixelColor(i, CylonEyeColor);
}
}
strip.SetPixelColor(nextPixel, CylonEyeColor);
lastPixel = nextPixel;
if (param.state == AnimationState_Completed)
{
// reverse direction of movement
moveDir *= -1;
// done, time to restart this position tracking animation/timer
animations.RestartAnimation(param.index);
}
}
void SetupAnimations()
{
// fade all pixels providing a tail that is longer the faster
// the pixel moves.
animations.StartAnimation(0, 5, FadeAnimUpdate);
// take several seconds to move eye fron one side to the other
animations.StartAnimation(1, 2000, MoveAnimUpdate);
}
void setup()
{
strip.Begin();
strip.Show();
SetupAnimations();
}
void loop()
{
// this is all that is needed to keep it running
// and avoiding using delay() is always a good thing for
// any timing related routines
animations.UpdateAnimations();
strip.Show();
}
Mentre questo se metto tutti i led va lento, ma se ne metto 300 va veloce
// NeoPixelFunLoop
// This example will move a trail of light around a series of pixels.
// A ring formation of pixels looks best.
// The trail will have a slowly fading tail.
//
// This will demonstrate the use of the NeoPixelAnimator.
// It shows the advanced use an animation to control the modification and
// starting of other animations.
// It also shows the normal use of animating colors.
// It also demonstrates the ability to share an animation channel rather than
// hard code them to pixels.
//
#include <NeoPixelBus.h>
#include <NeoPixelAnimator.h>
const uint16_t PixelCount = 1365; // make sure to set this to the number of pixels in your strip
const uint16_t PixelPin = 2; // make sure to set this to the correct pin, ignored for Esp8266
const uint16_t AnimCount = PixelCount / 5 * 2 + 1; // we only need enough animations for the tail and one extra
const uint16_t PixelFadeDuration = 300; // third of a second
// one second divide by the number of pixels = loop once a second
const uint16_t NextPixelMoveDuration = 1000 / PixelCount; // how fast we move through the pixels
NeoGamma<NeoGammaTableMethod> colorGamma; // for any fade animations, best to correct gamma
NeoPixelBus<NeoGrbFeature, Neo800KbpsMethod> strip(PixelCount, PixelPin);
// For Esp8266, the Pin is omitted and it uses GPIO3 due to DMA hardware use.
// There are other Esp8266 alternative methods that provide more pin options, but also have
// other side effects.
// for details see wiki linked here https://github.com/Makuna/NeoPixelBus/wiki/ESP8266-NeoMethods
// what is stored for state is specific to the need, in this case, the colors and
// the pixel to animate;
// basically what ever you need inside the animation update function
struct MyAnimationState
{
RgbColor StartingColor;
RgbColor EndingColor;
uint16_t IndexPixel; // which pixel this animation is effecting
};
NeoPixelAnimator animations(AnimCount); // NeoPixel animation management object
MyAnimationState animationState[AnimCount];
uint16_t frontPixel = 0; // the front of the loop
RgbColor frontColor; // the color at the front of the loop
void SetRandomSeed()
{
uint32_t seed;
// random works best with a seed that can use 31 bits
// analogRead on a unconnected pin tends toward less than four bits
seed = analogRead(0);
delay(1);
for (int shifts = 3; shifts < 31; shifts += 3)
{
seed ^= analogRead(0) << shifts;
delay(1);
}
// Serial.println(seed);
randomSeed(seed);
}
void FadeOutAnimUpdate(const AnimationParam& param)
{
// this gets called for each animation on every time step
// progress will start at 0.0 and end at 1.0
// we use the blend function on the RgbColor to mix
// color based on the progress given to us in the animation
RgbColor updatedColor = RgbColor::LinearBlend(
animationState[param.index].StartingColor,
animationState[param.index].EndingColor,
param.progress);
// apply the color to the strip
strip.SetPixelColor(animationState[param.index].IndexPixel,
colorGamma.Correct(updatedColor));
}
void LoopAnimUpdate(const AnimationParam& param)
{
// wait for this animation to complete,
// we are using it as a timer of sorts
if (param.state == AnimationState_Completed)
{
// done, time to restart this position tracking animation/timer
animations.RestartAnimation(param.index);
// pick the next pixel inline to start animating
//
frontPixel = (frontPixel + 1) % PixelCount; // increment and wrap
if (frontPixel == 0)
{
// we looped, lets pick a new front color
frontColor = HslColor(random(360) / 360.0f, 1.0f, 0.25f);
}
uint16_t indexAnim;
// do we have an animation available to use to animate the next front pixel?
// if you see skipping, then either you are going to fast or need to increase
// the number of animation channels
if (animations.NextAvailableAnimation(&indexAnim, 1))
{
animationState[indexAnim].StartingColor = frontColor;
animationState[indexAnim].EndingColor = RgbColor(0, 0, 0);
animationState[indexAnim].IndexPixel = frontPixel;
animations.StartAnimation(indexAnim, PixelFadeDuration, FadeOutAnimUpdate);
}
}
}
void setup()
{
strip.Begin();
strip.Show();
SetRandomSeed();
// we use the index 0 animation to time how often we move to the next
// pixel in the strip
animations.StartAnimation(0, NextPixelMoveDuration, LoopAnimUpdate);
}
void loop()
{
// this is all that is needed to keep it running
// and avoiding using delay() is always a good thing for
// any timing related routines
animations.UpdateAnimations();
strip.Show();
}
