98 lines
4.2 KiB
C
98 lines
4.2 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" // 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 is similar to the one last used in Example 11, but now includes support for 3 physical PushButtons
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// performing the following actions:
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//
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// power button: SHORT press toggles power on/off; LONG press saves current brightness as favorite level; DOUBLE press sets brightness to favorite level
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// raise button: SHORT press increases brightness by 1%; LONG press increases brightness by 10%; DOUBLE press increases brightness to maximum
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// lower button: SHORT press decreases brightness by 1%; LONG press decreases brightness by 10%; DOUBLE press decreases brightness to minimum
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LedPin *ledPin; // reference to Led Pin
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int powerPin; // NEW! pin with pushbutton to turn on/off 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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// NEW! Consructor includes 3 additional arguments to specify pin numbers for power, raise, and lower buttons
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DEV_DimmableLED(int pin, int powerPin) : Service::LightBulb(){
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power=new Characteristic::On(0,true);
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level=new Characteristic::Brightness(5,true); // Brightness Characteristic with an initial value equal to the favorite level
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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! Below we create three SpanButton() objects. In the first we specify the pin number, as required, but allow SpanButton() to use
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// its default values for a LONG press (2000 ms), a SINGLE press (5 ms), and a DOUBLE press (200 ms). In the second and third we change the
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// default LONG press time to 500 ms, which works well for repeatedly increasing or decreasing the brightness.
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// All of the logic for increasing/decreasing brightness, turning on/off power, and setting/resetting a favorite brightness level is found
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// in the button() method below.
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new SpanButton(powerPin); // NEW! create new SpanButton to control power using pushbutton on pin number "powerPin"
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this->powerPin=powerPin; // NEW! save power pushbutton pin number
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this->ledPin=new LedPin(pin); // configures a PWM LED for output to the specified pin
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Serial.print("Configuring Dimmable LED: Pin="); // initialization message
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Serial.print(ledPin->getPin());
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Serial.print("\n");
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ledPin->set(power->getVal()*level->getVal());
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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(ledPin->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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ledPin->set(power->getNewVal()*level->getNewVal());
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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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LOG1("Found button press on pin: "); // always a good idea to log messages
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LOG1(pin);
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LOG1(" type: ");
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LOG1(pressType==SpanButton::LONG?"LONG":(pressType==SpanButton::SINGLE)?"SINGLE":"DOUBLE");
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LOG1("\n");
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if(pin==powerPin && pressType==SpanButton::SINGLE){
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power->setVal(1-power->getVal()); // toggle the value of the power Characteristic
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ledPin->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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