132 lines
5.2 KiB
C
132 lines
5.2 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" // allows PWM control of LED brightness
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struct DEV_LED : Service::LightBulb { // ON/OFF LED
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int ledPin; // pin number defined for this LED
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SpanCharacteristic *power; // reference to the On Characteristic
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DEV_LED(int ledPin) : Service::LightBulb(){ // constructor() method
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power=new Characteristic::On();
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this->ledPin=ledPin;
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pinMode(ledPin,OUTPUT);
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// Here we output log messages when the constructor is initially called.
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// We use Serial.print() since to ensure the message is always output
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// regardless of the VERBOSITY setting.
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Serial.print("Configuring On/Off LED: Pin="); // initialization message
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Serial.print(ledPin);
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Serial.print("\n");
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} // end constructor
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StatusCode update(){ // update() method
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// Here we output log messages whenever update() is called,
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// which is helpful for debugging purposes if your physical device
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// is not functioning as expected. Since it's just for debugging,
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// we use LOG1() instead of Serial.print(). Note we can output
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// both the current as well as the new power settings.
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LOG1("Updating On/Off LED on pin=");
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LOG1(ledPin);
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LOG1(": Current Power=");
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LOG1(power->getVal()?"true":"false");
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LOG1(" New Power=");
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LOG1(power->getNewVal()?"true":"false");
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LOG1("\n");
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digitalWrite(ledPin,power->getNewVal());
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return(StatusCode::OK); // return OK status code
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} // update
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};
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//////////////////////////////////
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struct DEV_DimmableLED : Service::LightBulb { // Dimmable LED
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PwmPin *pwmPin; // reference to PWM Pin
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int ledPin; // pin number defined for this LED <- NEW!!
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int channel; // PWM channel used for this LED (should be unique for each LED)
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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 channel, int ledPin) : Service::LightBulb(){ // constructor() method
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power=new Characteristic::On();
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level=new Characteristic::Brightness(50); // Brightness Characteristic with an initial value of 50%
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new SpanRange(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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this->channel=channel; // save the channel number (from 0-15)
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this->ledPin=ledPin; // LED pin number <- NEW!!
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this->pwmPin=new PwmPin(channel, ledPin); // configure the PWM channel and attach the specified ledPin. pinMode() does NOT need to be called.
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// Here we output log messages when the constructor is initially called.
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// We use Serial.print() since to ensure the message is always output
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// regardless of the VERBOSITY setting.
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Serial.print("Configuring Dimmable LED: Pin="); // initialization message
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Serial.print(ledPin);
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Serial.print(" Channel=");
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Serial.print(channel);
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Serial.print("\n");
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} // end constructor
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StatusCode update(){ // update() method
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// Here we output log messages whenever update() is called,
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// which is helpful for debugging purposes if your physical device
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// is not functioning as expected. Since it's just for debugging,
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// we use LOG1() instead of Serial.print().
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// Note that in the prior example we did not save the ledPin number for
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// DimmableLED since it was only needed by the constructor for initializing
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// PwmPin(). For this example we add ledPin as a saved variable (see the two
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// lines marketed NEW!! above) for the sole purpose of this log message.
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LOG1("Updating Dimmable LED on pin=");
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LOG1(ledPin);
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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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// Note that since Dimmable_LED has two updateable Characteristics,
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// HomeKit may be requesting either or both to be updated. We can
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// use the "isUpdated" flag of each Characteristic to output a message
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// only if HomeKit actually requested an update for that Characteristic.
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// Since update() is called whenever there is an update to at least
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// one of the Characteristics in a Service, either power, level, or both
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// will have its "isUpdated" flag set.
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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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pwmPin->set(channel,power->getNewVal()*level->getNewVal());
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return(StatusCode::OK); // return OK status code
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} // update
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};
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//////////////////////////////////
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