Tasmota/lib/NeoPixelBus-2.2.9/examples/NeoPixelGamma/NeoPixelGamma.ino
arendst 299bed1c05 v5.9.1f - Update libraries and a fix
5.9.1f
 * Upgrade library ArduinoJson to 5.11.2
 * Upgrade library
IRRemoteEsp8266 to 2.2.1 + 2 commits but tweaked some protocols to keep
code usage small
 * Upgrade library NeoPixelBus to 2.2.9
 * Upgrade
library OneWire to 2.3.3 + 6 commits
 * Formalize library PubSubClient
to 2.6 + 9 commits and additional delay
 * Add optional ADS1115 driver
as alternative for unsupported I2Cdevlib in esp8266-core 2.4.0-rc2
 *
Fix wrong response name for command HlwISet (#1214)
2017-11-19 18:02:03 +01:00

95 lines
2.7 KiB
C++

// NeoPixelGamma
// This example will display a timed series of color gradiants with gamma correction
// and then without.
// If the last pixel is on, then the colors being shown are color corrected.
// It will show Red grandiant, Green grandiant, Blue grandiant, a White grandiant, and
// then repeat.
//
// This will demonstrate the use of the NeoGamma class
//
//
#include <NeoPixelBus.h>
#include <NeoPixelAnimator.h>
const uint16_t PixelCount = 16; // 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
NeoPixelBus<NeoGrbFeature, Neo800KbpsMethod> strip(PixelCount, PixelPin);
// for esp8266 omit the pin
//NeoPixelBus<NeoGrbFeature, Neo800KbpsMethod> strip(PixelCount);
// uncomment only one of these to compare memory use or speed
//
// NeoGamma<NeoGammaEquationMethod> colorGamma;
NeoGamma<NeoGammaTableMethod> colorGamma;
void DrawPixels(bool corrected, HslColor startColor, HslColor stopColor)
{
for (uint16_t index = 0; index < strip.PixelCount() - 1; index++)
{
float progress = index / static_cast<float>(strip.PixelCount() - 2);
RgbColor color = HslColor::LinearBlend<NeoHueBlendShortestDistance>(startColor, stopColor, progress);
if (corrected)
{
color = colorGamma.Correct(color);
}
strip.SetPixelColor(index, color);
}
// use the last pixel to indicate if we are showing corrected colors or not
if (corrected)
{
strip.SetPixelColor(strip.PixelCount() - 1, RgbColor(64));
}
else
{
strip.SetPixelColor(strip.PixelCount() - 1, RgbColor(0));
}
strip.Show();
}
void setup()
{
strip.Begin();
strip.Show();
}
void loop()
{
HslColor startColor;
HslColor stopColor;
// red color
startColor = HslColor(0.0f, 1.0f, 0.0f);
stopColor = HslColor(0.0f, 1.0f, 0.5f);
DrawPixels(true, startColor, stopColor);
delay(5000);
DrawPixels(false, startColor, stopColor);
delay(5000);
// green color
startColor = HslColor(0.33f, 1.0f, 0.0f);
stopColor = HslColor(0.33f, 1.0f, 0.5f);
DrawPixels(true, startColor, stopColor);
delay(5000);
DrawPixels(false, startColor, stopColor);
delay(5000);
// blue color
startColor = HslColor(0.66f, 1.0f, 0.0f);
stopColor = HslColor(0.66f, 1.0f, 0.5f);
DrawPixels(true, startColor, stopColor);
delay(5000);
DrawPixels(false, startColor, stopColor);
delay(5000);
// white color
startColor = HslColor(0.0f, 0.0f, 0.0f);
stopColor = HslColor(0.0f, 0.0f, 0.5f);
DrawPixels(true, startColor, stopColor);
delay(5000);
DrawPixels(false, startColor, stopColor);
delay(5000);
}