LED which can be turned on or off. More...

#include <sg_104020001_VariableColorLED.hpp>

Inheritance diagram for SG::VariableColorLED:

Collaboration diagram for SG::VariableColorLED:

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Public Member Functions
virtual	~VariableColorLED (void)
	Destructor. More...

	VariableColorLED (const std::string &n="", const bool turn_off_at_destruction=false)
	Constructor. More...

VariableColorLED &	turn_on (void)
	Turn the LED on. More...

VariableColorLED &	turn_off (void)
	Turn the LED off. More...

virtual GroveGPIO &	send_2_bytes (uint16_t bits)
	Send 16 bits (2 bytes). More...

virtual GroveGPIO &	send_byte (uint8_t byte)
	Send a single byte. More...

virtual bool	is_grove_uart (void) const
	Determine if this is a Grove UART device. More...

virtual bool	is_grove_i2c (void) const
	Determine if this is a Grove I2C device. More...

virtual bool	is_grove_gpio (void) const
	Determine if this is a Grove GPIO device. More...

virtual uint32_t	get_sku (void) const
	Return a guess as to the Seeed SKU number based on the grove type. More...

virtual std::string	get_type_name (void) const
	Return a short text string representing the grove type. More...

virtual EGroveType	get_type (void) const
	Return the grove type. More...

virtual std::string	get_name (void) const
	Return the user-supplied name. More...

virtual std::string	get_description (void) const
	Return a multi-word 1-line description of this object. More...


VariableColorLED &	turn_on (const std::chrono::high_resolution_clock::duration &duration)
	Turn the LED on for a limited amount of time, then turn it off again. More...

VariableColorLED &	turn_on (const size_t duration_in_milliseconds)
	Turn the LED on for a limited amount of time, then turn it off again. More...


VariableColorLED &	turn_off (const std::chrono::high_resolution_clock::duration &duration)
	Turn the LED off for a limited amount of time, then turn it on again. More...

VariableColorLED &	turn_off (const size_t duration_in_milliseconds)
	Turn the LED off for a limited amount of time, then turn it on again. More...


bool	operator== (const GroveBase &rhs) const
	Test object equality. More...

bool	operator!= (const GroveBase &rhs) const
	Test object equality. More...

Public Attributes
bool	turn_off_LED_when_destructing
	Determines whether the destructor attempts to turn off the light. This can be specified in the constructor. More...

EGroveType	grove_type
	Grove type. More...

std::string	grove_name
	User-supplied name. More...

Detailed Description

LED which can be turned on or off.

The exact red, green, and blue component is determined by physical screws that must be turned on the back of the twig.

Description	Image
Variable Color LED connected to the Grove UART interface.
RGB adjustement screws on the back of the variable color LED.
Using a small screwdriver to adjust the colour of the LED.

See also: http://www.seeedstudio.com/wiki/Grove_-_Variable_Color_LED; https://www.seeedstudio.com/item_detail.html?p_id=852

Note: This is not the same as the chainable RGB LED, SKU #104030006, SG::ChainableRGBLED. The colour on the chainable RGB LED can be set programmatically. The colour on the variable colour LED can only be set by turning tiny screws on the back of the twig.

Constructor & Destructor Documentation

SG::VariableColorLED::~VariableColorLED ( void )

virtual

Destructor.

See also: turn_off_LED_when_destructing

References SG::SGpp::get(), SG::SGpp::gpio, SG::GpioManagement::gpio_unexport(), turn_off(), and turn_off_LED_when_destructing.

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SG::VariableColorLED::VariableColorLED	(	const std::string &	n = `""`,
		const bool	turn_off_at_destruction = `false`
	)

Constructor.

Parameters

[in]	n	User-supplied name which can be used to identify this LED. The name can be anything, it isn't parsed by SG++.
[in]	turn_off_at_destruction	Normally when an object of this class is destructed, the LED retains the very last state ("colour"). If `turn_off_at_destruction` is set to `true`, then the LED will be turned off by the destructor.

References SG::SGpp::get(), SG::SGpp::gpio, SG::GpioManagement::gpio_export(), and SG::GpioManagement::kOutput.

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Member Function Documentation

std::string SG::GroveBase::get_description ( void ) const

virtualinherited

Return a multi-word 1-line description of this object.

References SG::demangle(), SG::GroveBase::get_name(), SG::GroveBase::get_sku(), SG::GroveBase::get_type_name(), SG::GroveBase::is_grove_gpio(), SG::GroveBase::is_grove_i2c(), SG::GroveBase::is_grove_uart(), and SG::BeagleBone::Detect::to_string().

Referenced by buzzer(), chainable_rgb_led(), common_oled(), SG::GroveBase::get_name(), SG::GroveI2CDigital::GroveI2CDigital(), SG::GroveI2CDigital::read16(), SG::GroveI2CDigital::read8(), SG::GroveI2CDigital::read_block(), SG::CommonOLED::set_display_bitmap(), SG::CommonOLED::set_orientation(), temperature(), variable_led(), SG::GroveI2CDigital::write16(), SG::GroveI2CDigital::write8(), SG::GroveI2CDigital::write_block(), and SG::GroveI2CDigital::write_byte().

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virtual std::string SG::GroveBase::get_name ( void ) const

inlinevirtualinherited

Return the user-supplied name.

References SG::GroveBase::get_description(), SG::GroveBase::grove_name, SG::GroveBase::is_grove_gpio(), SG::GroveBase::is_grove_i2c(), and SG::GroveBase::is_grove_uart().

Referenced by SG::GroveBase::get_description(), SG::GroveBase::operator=(), and SG::GroveBase::operator==().

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virtual uint32_t SG::GroveBase::get_sku ( void ) const

inlinevirtualinherited

Return a guess as to the Seeed SKU number based on the grove type.

References SG::get_sku_from_grove_type(), and SG::GroveBase::grove_type.

Referenced by SG::GroveBase::get_description().

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virtual EGroveType SG::GroveBase::get_type ( void ) const

inlinevirtualinherited

Return the grove type.

References SG::GroveBase::grove_type.

Referenced by SG::GroveI2CDigital::get_address_from_type(), SG::GroveBase::operator=(), and SG::GroveBase::operator==().

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virtual std::string SG::GroveBase::get_type_name ( void ) const

inlinevirtualinherited

Return a short text string representing the grove type.

References SG::GroveBase::grove_type, and SG::to_string().

Referenced by SG::GroveBase::get_description().

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virtual bool SG::GroveGPIO::is_grove_gpio ( void ) const

inlinevirtualinherited

Determine if this is a Grove GPIO device.

See also: SG::GroveGPIO

Implements SG::GroveBase.

virtual bool SG::GroveGPIO::is_grove_i2c ( void ) const

inlinevirtualinherited

Determine if this is a Grove I2C device.

See also: SG::GroveI2C

Implements SG::GroveBase.

virtual bool SG::GroveGPIO::is_grove_uart ( void ) const

inlinevirtualinherited

Determine if this is a Grove UART device.

See also: SG::GroveUART

Implements SG::GroveBase.

bool SG::GroveBase::operator!= ( const GroveBase & rhs ) const

inlineinherited

Test object equality.

References SG::GroveBase::operator==().

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bool SG::GroveBase::operator== ( const GroveBase & rhs ) const

inherited

Test object equality.

References SG::GroveBase::get_name(), and SG::GroveBase::get_type().

Referenced by SG::GroveBase::operator!=(), SG::Buzzer::operator==(), SG::TemperatureAndHumiditySensor::operator==(), SG::TemperatureSensor::operator==(), and SG::I2CADC::operator==().

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SG::GroveGPIO & SG::GroveGPIO::send_2_bytes ( uint16_t bits )

virtualinherited

Send 16 bits (2 bytes).

References SG::GroveGPIO::send_byte().

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SG::GroveGPIO & SG::GroveGPIO::send_byte ( uint8_t byte )

virtualinherited

Send a single byte.

References SG::SGpp::get(), SG::SGpp::gpio, SG::GpioManagement::set_high(), and SG::GpioManagement::set_low().

Referenced by SG::GroveGPIO::send_2_bytes(), and SG::ChainableRGBLED::turn_on().

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SG::VariableColorLED & SG::VariableColorLED::turn_off ( void )

Turn the LED off.

References SG::SGpp::get(), SG::SGpp::gpio, and SG::GpioManagement::set_high().

Referenced by turn_on(), variable_led(), and ~VariableColorLED().

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SG::VariableColorLED & SG::VariableColorLED::turn_off ( const std::chrono::high_resolution_clock::duration & duration )

Turn the LED off for a limited amount of time, then turn it on again.

This call is synchronous, and will not return until the LED has cycled off then on again. The duration should be more than 5 milliseconds, otherwise the LED may not behave as expected.

References SG::SGpp::get(), SG::SGpp::gpio, SG::GpioManagement::set_high(), and SG::GpioManagement::set_low().

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VariableColorLED& SG::VariableColorLED::turn_off ( const size_t duration_in_milliseconds )

inline

Turn the LED off for a limited amount of time, then turn it on again.

This call is synchronous, and will not return until the LED has cycled off then on again. The duration should be more than 5 milliseconds, otherwise the LED may not behave as expected.

References turn_off().

Referenced by turn_off().

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SG::VariableColorLED & SG::VariableColorLED::turn_on ( void )

Turn the LED on.

References SG::SGpp::get(), SG::SGpp::gpio, and SG::GpioManagement::set_low().

Referenced by variable_led().

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SG::VariableColorLED & SG::VariableColorLED::turn_on ( const std::chrono::high_resolution_clock::duration & duration )

Turn the LED on for a limited amount of time, then turn it off again.

This call is synchronous, and will not return until the LED has cycled on then off again. The duration should be more than 5 milliseconds, otherwise the LED may not behave as expected.

References SG::SGpp::get(), SG::SGpp::gpio, SG::GpioManagement::set_high(), and SG::GpioManagement::set_low().

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VariableColorLED& SG::VariableColorLED::turn_on ( const size_t duration_in_milliseconds )

inline

Turn the LED on for a limited amount of time, then turn it off again.

This call is synchronous, and will not return until the LED has cycled on then off again. The duration should be more than 5 milliseconds, otherwise the LED may not behave as expected.

References turn_off(), and turn_on().

Referenced by turn_on().

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