MD_MSGEQ7 Class Reference

#include <MD_MSGEQ7.h>

Public Member Functions
	MD_MSGEQ7 (uint8_t resetPin, uint8_t strobePin, uint8_t dataPin, uint32_t readDelay)
	~MD_MSGEQ7 (void)
void	begin (void)
Methods for object and hardware control.
void	reset (void)
bool	read (bool bReset=true)
uint16_t	get (uint8_t band)

Static Public Attributes
static const uint8_t	MAX_BAND = 7
	Number of bands output by the hardware IC.

Detailed Description

Core object for the MD_MSGEQ7 library

Constructor & Destructor Documentation

MD_MSGEQ7()

MD_MSGEQ7::MD_MSGEQ7	(	uint8_t	resetPin,
		uint8_t	strobePin,
		uint8_t	dataPin,
		uint32_t	readDelay )

Class Constructor - arbitrary digital interface with delay.

Instantiate a new instance of the class. The parameters passed are used to connect the software to the hardware. Multiple instances may co-exist.

The delay parameter causes the library to read the device no more frequently that every readDelay milliseconds. This relieves the calling application from managing timers to control reqd() frequency

See also

read()

Parameters

resetPin	Arduino output pin for IC reset.
strobePin	Arduino output for strobing the device during read.
dataPin	Arduino input where data gets read from the IC.
readDelay	milliseconds delay between device reads.

~MD_MSGEQ7()

MD_MSGEQ7::~MD_MSGEQ7

(

void

)

Class Destructor.

Does the necessary to clean up once the object is no longer required.

Member Function Documentation

begin()

void MD_MSGEQ7::begin

(

void

)

Initialize the object.

Initialize the object data. This needs to be called during setup() to initialize new data for the class that cannot be done during the object creation.

get()

uint16_t MD_MSGEQ7::get

(

uint8_t

band

)

Get a specific value from the data read.

Read data elements from the device buffer filled by a previous read() call. The elements referenced are numbered 0..MAX_BAND-1 for IC values centered around the 63Hz, 160Hz, 400Hz, 1KHz, 2.5KHz, 6.25KHz and 16kHz bands respectively.

Parameters

band	index of the data point requested [0..MAX_BAND-1].

Returns

The value requested from the buffer.

read()

bool MD_MSGEQ7::read

(

bool

bReset = true

)

Read the next set of data from the IC.

Read a full set of MAX_BAND values from the IC. The optional parameter is used to suppress a reset before the read - default is to reset.

The readDelay passed into the constructor is used to set the minimum read() frequency. The method returns false if the timer has not expired.

See also

get()

Parameters

bReset

enables a device reset prior to read if true, disables if false.

Returns

true if read was executed and data is available.

reset()

void MD_MSGEQ7::reset

(

void

)

Reset the IC before initiating a read.

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

• src/MD_MSGEQ7.h
• src/MD_MSGEQ7.cpp