//////////////////////////////////////////////////////////// // // // HomeSpan: A HomeKit implementation for the ESP32 // // ------------------------------------------------ // // // // Example 6: One working on/off LEDs and one working // // dimmable LED, both based on the LightBulb // // Service // // // //////////////////////////////////////////////////////////// #include "HomeSpan.h" #include "DEV_LED.h" void setup() { // Example 6 changes Example 5 so that LED #2 is now dimmable, instead of just on/off. This requires us to create a new // derived Service we will name "DEV_DimmableLED" Instead of creating a new file to store this definition, we will simply // tack it on to the end of the DEV_LED.h file that includes the code we created in Example 5 to control an on/off LED. // Grouping similar-style Services in one ".h" file makes it easier to organize your custom devices. // As usual, all previous comments have been deleted and only new changes from the previous example are shown. // NOTE: The Arduino/ESP32 code base does not include the function analogWrite() which is typically used to create a PWM // output to drive the brightness of an LED. The ESP32 code base itself includes a set of functions to create PWM output // and the ESP32 chip has built-in PWM functionality specifically for this purpose. There are numerous libraries // you can download that mimics or reproduces analogWrite() in some form or another. HomeSpan conveniently comes with // it own version of a wrapper around the ESP32 PWM classes that make it very easy to define PWM "channel," attach a pin, // and set the PWM level (or duty cycle) from 0-100%. These functions are encapsualted in the PwmPin class, as defined in // extras/PwmPin.h. We will include this file in our updated DEV_LED.h for use with DEV_DimmableLED. Serial.begin(115200); homeSpan.begin(Category::Lighting,"HomeSpan LEDs"); new SpanAccessory(); new Service::AccessoryInformation(); new Characteristic::Name("On/Off LED"); new Characteristic::Manufacturer("HomeSpan"); new Characteristic::SerialNumber("123-ABC"); new Characteristic::Model("20mA LED"); new Characteristic::FirmwareRevision("0.9"); new Characteristic::Identify(); new Service::HAPProtocolInformation(); new Characteristic::Version("1.1.0"); new DEV_LED(16); // create an on/off LED attached to pin 16 (same as in Example 5) new SpanAccessory(); new Service::AccessoryInformation(); new Characteristic::Name("Dimmable LED"); new Characteristic::Manufacturer("HomeSpan"); new Characteristic::SerialNumber("123-ABC"); new Characteristic::Model("20mA LED"); new Characteristic::FirmwareRevision("0.9"); new Characteristic::Identify(); new Service::HAPProtocolInformation(); new Characteristic::Version("1.1.0"); new DEV_DimmableLED(0,17); // NEW! create a dimmable LED attached to pin 17 using PWM channel 0. See new code at end of DEV_LED.h } // end of setup() ////////////////////////////////////// void loop(){ homeSpan.poll(); } // end of loop()