70 lines
2.5 KiB
C++
70 lines
2.5 KiB
C++
/********************************************************************************
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* The MIT License (MIT)
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*
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* Copyright (c) 2015 Nis Wechselberg
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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********************************************************************************/
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/********************************************************************************
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* ESP8266-RGB-Autocycle
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* Cycles an RGB LED Ribbon through all possible colors.
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********************************************************************************/
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// Configuration
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const int redPin = 12;
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const int greenPin = 13;
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const int bluePin = 14;
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void setup() {
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// Start off with the LED off.
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setColourRgb(0,0,0);
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}
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void loop() {
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// Store pwm value for each color channel
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unsigned int rgbColour[3];
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// Start off with red
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rgbColour[0] = 1023;
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rgbColour[1] = 0;
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rgbColour[2] = 0;
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// Choose the colours to increment and decrement.
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for (int decColour = 0; decColour < 3; decColour += 1) {
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int incColour = decColour == 2 ? 0 : decColour + 1;
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// cross-fade the two colours.
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for(int i = 0; i < 1023; i += 1) {
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rgbColour[decColour] -= 1;
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rgbColour[incColour] += 1;
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setColourRgb(rgbColour[0], rgbColour[1], rgbColour[2]);
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delay(5);
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}
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}
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}
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// Helper function to set the RGB value
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void setColourRgb(unsigned int red, unsigned int green, unsigned int blue) {
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analogWrite(redPin, red);
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analogWrite(greenPin, green);
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analogWrite(bluePin, blue);
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}
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