sensesp::VoltageMultiplier Class Reference

OBSOLETE: Since you can now apply an "output_scale" to the AnalogInput sensor, you don't need this transform anymore. See the description of "output_scale" in analog_input.h. More...

#include <sensesp/transforms/voltage_multiplier.h>

Inheritance diagram for sensesp::VoltageMultiplier:

Public Member Functions
	VoltageMultiplier (uint16_t R1, uint16_t R2, String config_path="")
virtual void	set_input (float input, uint8_t inputChannel=0)
Public Member Functions inherited from sensesp::SymmetricTransform< float >
	SymmetricTransform (String config_path="")
Public Member Functions inherited from sensesp::Transform< C, P >
	Transform (String config_path="")
Transform< C, P > *	connect_from (ValueProducer< P > *producer0, ValueProducer< P > *producer1=NULL, ValueProducer< P > *producer2=NULL, ValueProducer< P > *producer3=NULL, ValueProducer< P > *producer4=NULL)
Public Member Functions inherited from sensesp::TransformBase
	TransformBase (String config_path="")
Public Member Functions inherited from sensesp::Configurable
	Configurable (String config_path="", String description="", int sort_order=1000)
String	get_description ()
void	set_description (String description)
	Set the description of the Configurable.
int	get_sort_order ()
void	set_sort_order (int sort_order)
virtual void	save_configuration ()
Public Member Functions inherited from sensesp::Startable
	Startable (int priority=0)
virtual void	start ()
const int	get_start_priority ()
void	set_start_priority (int priority)
Public Member Functions inherited from sensesp::ValueConsumer< C >
virtual void	set_input (C new_value, uint8_t input_channel=0)
void	connect_from (ValueProducer< C > *producer, uint8_t input_channel=0)
Public Member Functions inherited from sensesp::ValueProducer< P >
	ValueProducer ()
virtual const P &	get () const
void	connect_to (ValueConsumer< P > *consumer, uint8_t input_channel=0)
void	connect_to (ValueConsumer< CT > *consumer, uint8_t input_channel=0)
	Connect a producer to a consumer of a different type.
Transform< P, T2 > *	connect_to (Transform< P, T2 > *consumer_producer, uint8_t input_channel=0)
Transform< TT, T2 > *	connect_to (Transform< TT, T2 > *consumer_producer, uint8_t input_channel=0)
	Connect a producer to a transform with a different input type.
void	emit (P new_value)
Public Member Functions inherited from sensesp::Observable
	Observable ()
	Observable (Observable &&other)
	Move constructor.
void	notify ()
void	attach (std::function< void()> observer)

Additional Inherited Members
Static Public Member Functions inherited from sensesp::TransformBase
static const std::set< TransformBase * > &	get_transforms ()
Static Public Member Functions inherited from sensesp::Startable
static void	start_all ()
Public Attributes inherited from sensesp::Configurable
const String	config_path_
Protected Member Functions inherited from sensesp::Configurable
virtual void	load_configuration ()
Protected Attributes inherited from sensesp::Configurable
String	description_ = ""
int	sort_order_ = 1000
Protected Attributes inherited from sensesp::ValueProducer< P >
P	output

Detailed Description

OBSOLETE: Since you can now apply an "output_scale" to the AnalogInput sensor, you don't need this transform anymore. See the description of "output_scale" in analog_input.h.

A transform that does the opposite of what a physical voltage divider circuit does: convert the voltage that comes out of a voltage divider back into the original voltage that went into the voltage divider.

Use case: measuring a ~12V DC source with an analog-to-digital converter (ADC) that can take only 5V. You use a physical voltage divider circuit to reduce from ~12V down to a range that's no higher than 5V. After you read the output from the ADC and convert it into voltage, you have to reverse the effect of the voltage divider circuit to know the original source voltage.

Parameters

R1	The value, in ohms, of R1 in your voltage divider circuit.
R2	The value, in ohms, of R2 in your voltage divider circuit.

For maximum accuracy, you should measure the actual ohms value of your resistors, rather than just assuming they are as labeled.

Definition at line 30 of file voltage_multiplier.h.

Constructor & Destructor Documentation

VoltageMultiplier()

sensesp::VoltageMultiplier::VoltageMultiplier	(	uint16_t	R1,
		uint16_t	R2,
		String	config_path = ""
	)

Definition at line 5 of file voltage_multiplier.cpp.

Member Function Documentation

set_input()

void sensesp::VoltageMultiplier::set_input ( float  input, uint8_t  inputChannel = 0  )

virtual

Definition at line 9 of file voltage_multiplier.cpp.

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The documentation for this class was generated from the following files:

• src/sensesp/transforms/voltage_multiplier.h
• src/sensesp/transforms/voltage_multiplier.cpp