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@ -20,7 +20,11 @@ A blue diamond (🔹) next to a Characteristic means it is **required** for that
HomeSpan Services and Characteristics are implemented as C++ Classes with names that exactly match the spelling and capitalization specified by Apple in Sections 8 and 9 of HAP-R2, but without any spaces. HomeSpan Services are defined in HomeSpan's `Service` namespace. HomeSpan Characteristics are defined in HomeSpan's `Characteristic` namespace. For example, HomeSpan defines the *Carbon Dioxide Sensor* Service (HAP Service 8.7) as `Service::CarbonDioxideSensor`, and the *Carbon Dioxide Detected* Characteristic (HAP Characteristic 9.16) as `Characteristic::CarbonDioxideDetected`. HomeSpan Services and Characteristics are implemented as C++ Classes with names that exactly match the spelling and capitalization specified by Apple in Sections 8 and 9 of HAP-R2, but without any spaces. HomeSpan Services are defined in HomeSpan's `Service` namespace. HomeSpan Characteristics are defined in HomeSpan's `Characteristic` namespace. For example, HomeSpan defines the *Carbon Dioxide Sensor* Service (HAP Service 8.7) as `Service::CarbonDioxideSensor`, and the *Carbon Dioxide Detected* Characteristic (HAP Characteristic 9.16) as `Characteristic::CarbonDioxideDetected`.
The pre-defined constant expressions for enumerated Characteristics are in namespaces that match the name of the Characteristic. For example, to set the *Air Quality* Characteristic of an *Air Quality Sensor* Service, you could use `setVal(AirQuality::GOOD)` or, equivalently, `setVal(2)`[^3] The pre-defined constant expressions for enumerated Characteristics are in namespaces that match the name of the Characteristic. For example, to set the *Air Quality* Characteristic of an *Air Quality Sensor* Service, you could use `setVal(Characteristic::AirQuality::GOOD)` or, equivalently, `setVal(2)`.[^3]
[^3]: Note that a Characteristic's pre-defined constants are inherited by objects that you create from that Characteristic. This means that if you create a pointer to the *AirQuality* Characteristic using `Characteristic::AirQuality *air = new Characteristic::AirQuality;` then later in your code you can either say<br> `air->setVal(Characteristic::AirQuality::GOOD)` or `air->GOOD`. Both will work, but the latter is much easier to type.
# Currently-Supported Services and Characteristics
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