114 lines
4.3 KiB
C++
114 lines
4.3 KiB
C++
/*********************************************************************************
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* MIT License
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*
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* Copyright (c) 2020-2023 Gregg E. Berman
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*
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* https://github.com/HomeSpan/HomeSpan
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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 all
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* 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 THE
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* SOFTWARE.
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*
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********************************************************************************/
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// HomeSpan Fading-LED Example. Demonstrates use of:
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//
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// LedPin::fade() and LedPin::fadeStatus() methods
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//
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// In this sketch we control a single dimmable LED using the Home App as well as a SpanButton.
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// You can control the brightness of the LED from the Home App, but the SpanButton only turns the
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// LED either fully on (if it's off) or fully off (if it's already on).
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//
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// Rather than set the LED to a specific brightness, this sketch uses the ESP32's hardware-based fading
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// functionality to fade the LED from one level to the next. We set the timing for each fade to be 2000 ms,
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// proportional to the difference between the current brightness and the desired brightness. This means it
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// will take a full 2 seconds to fade the LED from 0-100, but only 1 second to fade from half-brightness to
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// off.
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#include "HomeSpan.h"
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#include "extras/PwmPin.h" // library of various PWM functions
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////////////////////////////////////
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struct FadingLED : Service::LightBulb {
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LedPin *ledPin; // reference to Led Pin
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SpanCharacteristic *power; // reference to the On Characteristic
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SpanCharacteristic *level; // reference to the Brightness Characteristic
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FadingLED(int _ledPin, int _buttonPin) : Service::LightBulb(){
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power=new Characteristic::On();
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level=new Characteristic::Brightness(0);
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ledPin=new LedPin(_ledPin);
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new SpanButton(_buttonPin);
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}
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boolean update(){
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ledPin->fade(power->getNewVal()*level->getNewVal(),2000,LedPin::PROPORTIONAL); // use fade() to set new level; timing=2 seconds, proportional scale
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while(ledPin->fadeStatus()==LedPin::FADING); // wait until fading is completed
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return(true);
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}
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void button(int pin, int pressType) override {
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// Below we turn LED fully on or off depending on whether power is on
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// Unlike above, we will NOT wait for the fading to complete, but will return immediately
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if(ledPin->fade(100-(power->getVal())*100,2000,LedPin::PROPORTIONAL)!=0) // use fade to either turn fully on or fully off; check return status to see if call was successful
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Serial.printf("Button Press Ignored\n");
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}
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void loop() override {
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// Below we set power and level once fading from a button press is completed
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if(ledPin->fadeStatus()==LedPin::COMPLETED){
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power->setVal(1-power->getVal());
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level->setVal(power->getVal()?100:0);
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}
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}
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};
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//////////////////////////////////
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void setup() {
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Serial.begin(115200);
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homeSpan.begin(Category::Lighting,"Fading LED");
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new SpanAccessory();
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new Service::AccessoryInformation();
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new Characteristic::Identify();
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new FadingLED(26,4); // first argument is LED Pin, second argument is PushButton Pin
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}
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//////////////////////////////////////
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void loop(){
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homeSpan.poll();
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}
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