94 lines
5.1 KiB
C
94 lines
5.1 KiB
C
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////////////////////////////////////
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// DEVICE-SPECIFIC LED SERVICES //
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////////////////////////////////////
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struct DEV_TempSensor : Service::TemperatureSensor { // A standalone Temperature sensor
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SpanCharacteristic *temp; // reference to the Current Temperature Characteristic
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DEV_TempSensor() : Service::TemperatureSensor(){ // constructor() method
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// First we instantiate the main Characteristic for a Temperature Sensor, namely the Current Temperature, and set its initial value
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// to 20 degrees. For a real sensor, we would take a reading and initialize it to that value instead. NOTE: HomeKit uses
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// Celsius for all temperature settings. HomeKit will DISPLAY temperatures in the HomeKit app according to the settings on your iPhone.
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// Though the HAP documentation includes a Characteristic that appears to allow the device to over-ride this setting by specifying a display
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// of Celsius or Fahrenheit for each Service, it does not appear to work as advertised.
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temp=new Characteristic::CurrentTemperature(-10.0); // instantiate the Current Temperature Characteristic
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temp->setRange(-50,100); // expand the range from the HAP default of 0-100 to -50 to 100 to allow for negative temperatures
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Serial.print("Configuring Temperature Sensor"); // initialization message
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Serial.print("\n");
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} // end constructor
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// Next we create the loop() method. This method take no arguments and returns no values. In order to simulate a temperature change
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// from an actual sensor we will read the current value of the temp Characteristic using the getVal() function, with <float> as the
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// template parameter; add 0.5 degrees Celsius; and then store the result in a float variable named "temperature." This will simulate
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// an increment of 0.5 degrees Celsius (a little less than 1 degree F). We will cap the temperature to 35.0 degrees C, after which
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// it resets to 10.0 and starts over. Most importantly, we will do this once every 5 seconds by checking the elapsed time since the
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// previous modification using timeVal().
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// All of the action happens in the setVal() line where we set the value of the temp Characteristic to the new value of temperature.
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// This tells HomeKit to send an Event Notification message to all available Controllers making them aware of the new temperature.
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// Note that setVal() is NOT a template function and does not require you to specify <float> as a template parameter. This is because
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// setVal() can determine the type from the argument you specify. If there is any chance of ambiguity, you can always specifically
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// cast the argument such: setVal((float)temperature).
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void loop(){
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if(temp->timeVal()>5000){ // check time elapsed since last update and proceed only if greater than 5 seconds
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float temperature=temp->getVal<float>()+0.5; // "simulate" a half-degree temperature change...
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if(temperature>35.0) // ...but cap the maximum at 35C before starting over at -30C
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temperature=-30.0;
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temp->setVal(temperature); // set the new temperature; this generates an Event Notification and also resets the elapsed time
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LOG1("Temperature Update: ");
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LOG1(temperature*9/5+32);
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LOG1("\n");
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}
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} // loop
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};
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//////////////////////////////////
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struct DEV_Voltmeter : Service::BatteryService { // UPS battery voltmeter
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SpanCharacteristic *BatLvl; // reference to the Battery Level, which is a int from 0 to 100
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SpanCharacteristic *LowBat; // reference to the Low Battery Status, which is a int 0 or 1
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DEV_Voltmeter() : Service::BatteryService(){ // constructor() method
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BatLvl=new Characteristic::BatteryLevel (77); // instantiate the Battery Level and set initial value to 77
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LowBat=new Characteristic::StatusLowBattery (0); // instantiate the Low Battery Status and set initial value to 0
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Serial.print("Configuring UPS Bttery Level"); // initialization message
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Serial.print("\n");
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} // end constructor
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void loop(){
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// Note we are NOT updating the Nitrogen Dioxide Density Characteristic. This should therefore remain steady at its initial value of 700.0
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if(BatLvl->timeVal()>5000){ // check time elapsed since last update and proceed only if greater than 5 seconds
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int batteryLevel=BatLvl->getVal<int>()-1; // "simulate" a half-degree temperature change...
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if(batteryLevel<10) // ...but cap the maximum at 35C before starting over at -30C
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batteryLevel=85;
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BatLvl->setVal(batteryLevel); // set the new temperature; this generates an Event Notification and also resets the elapsed time
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LOG1("Battery Lvl Update: ");
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LOG1(batteryLevel);
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LOG1("\n");
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}
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} // loop
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};
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