73 lines
3.7 KiB
Markdown
73 lines
3.7 KiB
Markdown
# HomeSpan Library Reference
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The HomeSpan Library is invoked by including *HomeSpan.h* in your Arduino sketch as follows:
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```C++
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#include "HomeSpan.h"
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```
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## *homeSpan* (object)
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At runtime this HomeSpan will create a global object named `homeSpan` that supports the following methods:
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* `void begin(Category catID, char *displayName, char *hostNameBase, char *modelName)`
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* initializes HomeSpan
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* **must** be called at the beginning of each sketch before any other HomeSpan functions and is typically placed near the top of the Arduino `setup()` method, but **after** `Serial.begin()` so that initialization diagnostics can be output to the Serial Monitor
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* all arguments are **optional**
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* *catID* - the HAP Category HomeSpan broadcasts for pairing to HomeKit. Default is Category::Lighting. See [HomeSpan Accessory Categories](Categories.md) for a complete list
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* *displayName* - the MDNS display name broadcast by HomeSpan. Default is "HomeSpan Server"
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* *hostNameBase* - the full MDNS host name is broadcast by HomeSpan as *hostNameBase-DeviceID*.local, where DeviceID is a unique 6-byte code generated automatically by HomeSpan. Default is "HomeSpan"
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* *modelName* - the HAP model name HomeSpan broadcasts for pairing to HomeKit. Default is "HomeSpan-ESP32"
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* example: `homeSpan.begin(Category::Fans, "Living Room Ceiling Fan");`
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* `void poll()`
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* checks for HAP requests, local commands, and device activity
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* **must** be called repeatedly in each sketch and is typically placed at the top of the Arduino `loop()` method
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The following **optional** `homeSpan` methods override various HomeSpan initialization parameters used in `begin()`, and therefore **should** be called before `begin()` to take effect. If a method is *not* called, HomeSpan uses the default parameter indicated below:
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* `void setControlPin(uint8_t pin)`
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* sets the ESP32 pin to use for the HomeSpan Control Button (default=21)
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* `void setStatusPin(uint8_t pin)`
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* sets the ESP32 pin to use for the HomeSpan Status LED (default=LED_BUILTIN)
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* `void setApSSID(char *ssid)`
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* sets the SSID (network name) of the HomeSpan Setup Access Point (default="HomeSpan-Setup")
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* `void setApPassword(char *pwd)`
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* sets the password of the HomeSpan Setup Access Point (default="homespan")
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* `void setApTimeout(uint16_t nSec)`
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* sets the duration (in seconds) that the HomeSpan Setup Access Point, once activated, stays alive before timing out (default=300 seconds)
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* `void setCommandTimeout(uint16_t nSec)`
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* sets the duration (in seconds) that the HomeSpan End-User Command Mode, once activated, stays alive before timing out (default=120 seconds)
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* `void setLogLevel(uint8_t level)`
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* sets the logging level for diagnostic messages, where:
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* 0 = top-level status messages only (default),
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* 1 = all status messages, and
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* 2 = all status messages plus all HAP communication packets to and from the HomeSpan device
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* this parameter can also be changed at runtime via the [HomeSpan CLI](CLI.md)
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* `void setMaxConnections(uint8_t nCon)`
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* sets the maximum number of HAP Controllers that be simultaneously connected to HomeSpan (default=8)
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## *SpanAccessory()* (class)
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Creating an instance of this class add a new HAP Accessory to the HomeSpan HAP Database.
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* every HomeSpan sketch requires at least one Accessory
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* there are no arguments or associated methods
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* you must call `homeSpan.begin()` before instantiating any Accessories
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* example: `new SpanAccessory();`
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## *SpanService()* (base class)
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This is a **base class** from which all HomeSpan Services are derived. To create a new Service, instantiate one of HomeSpan Services defined in the Service namespace
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* `SpanService()`
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* This is the base class for creating new HAP Services. It should
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