76 lines
3.0 KiB
C
76 lines
3.0 KiB
C
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////////////////////////////////////
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// DEVICE-SPECIFIC LED SERVICES //
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////////////////////////////////////
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#include "extras/PwmPin.h" // library of various PWM functions
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////////////////////////////////////
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struct DEV_DimmableLED : Service::LightBulb { // Dimmable LED
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// This version of the Dimmable LED Service includes a PushButton that can be used to turn on/off the LED. Status of both the
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// power state and the brightness of the LED are stored in NVS for restoration if the device reboots.
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LedPin *LED; // reference to an LedPin
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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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DEV_DimmableLED(int ledPin, int buttonPin) : Service::LightBulb(){
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power=new Characteristic::On(0,true); // NEW! Second argument is true, so the value of the On Characteristic (initially set to 0) will be saved in NVS
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level=new Characteristic::Brightness(5,true); // NEW! Second argument is true, so the value of the Brightness Characteristic (initially set to 5) will be saved in NVS
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level->setRange(5,100,1); // sets the range of the Brightness to be from a min of 5%, to a max of 100%, in steps of 1%
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new SpanButton(buttonPin); // create a new SpanButton to control power using PushButton on pin number "buttonPin"
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this->LED=new LedPin(ledPin); // configures a PWM LED for output to pin number "ledPin"
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Serial.print("Configuring Dimmable LED: Pin="); // initialization message
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Serial.print(LED->getPin());
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Serial.print("\n");
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LED->set(power->getVal()*level->getVal()); // NEW! IMPORTANT: Set the LED to its initial state at startup. Note we use getVal() here, since it is set upon instantiation.
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} // end constructor
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boolean update(){ // update() method
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LOG1("Updating Dimmable LED on pin=");
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LOG1(LED->getPin());
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LOG1(": Current Power=");
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LOG1(power->getVal()?"true":"false");
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LOG1(" Current Brightness=");
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LOG1(level->getVal());
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if(power->updated()){
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LOG1(" New Power=");
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LOG1(power->getNewVal()?"true":"false");
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}
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if(level->updated()){
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LOG1(" New Brightness=");
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LOG1(level->getNewVal());
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}
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LOG1("\n");
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LED->set(power->getNewVal()*level->getNewVal()); // update the physical LED to reflect the new values
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return(true); // return true
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} // update
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void button(int pin, int pressType) override {
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if(pressType==SpanButton::SINGLE){ // only respond to SINGLE presses
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power->setVal(1-power->getVal()); // toggle the value of the power Characteristic
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LED->set(power->getVal()*level->getVal()); // update the physical LED to reflect the new values
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}
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} // button
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};
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//////////////////////////////////
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