AT42QT1070 Class Reference

API for the Atmel AT42QT1070 QTouch Sensor. More...

Detailed Description

• ID: at42qt1070
• Name: AT42QT1070 QTouch Sensor
• Other Names: Grove QTouch Sensor
• Category: touch
• Manufacturer: seeed
• Connection: i2c

This class implements support for the Atmel AT42QT1070 QTouch sensor, which supports 7 capacitive buttons.

It was developed using a Grove-Q Touch Sensor board.

Classes
class	AT42QT1070_DET_T
class	AT42QT1070_REG_T

Public Member Functions
synchronized void	delete ()
	AT42QT1070 (int bus, short address)
	AT42QT1070 (int bus)
boolean	writeByte (short reg, short arg1)
boolean	writeWord (short reg, int word)
short	readByte (short reg)
int	readWord (short reg)
short	readChipID ()
void	updateState ()
short	getLPMode ()
short	setLPMode (short mode)
short	getAVE (short key)
short	setAVE (short key, short ave)
short	getAKSGroup (short key)
short	setAKSGroup (short key, short group)
boolean	isOverflowed ()
boolean	isCalibrating ()
boolean	reset ()
boolean	calibrate ()
short	getButtons ()

Constructor & Destructor Documentation

AT42QT1070	(	int	bus,
		short	address
	)

AT42QT1070 constructor

Parameters

bus	I2C bus to use
address	Address for this sensor

Member Function Documentation

boolean calibrate

(

)

Issues a calibrate command

Returns

True if successful

short getAKSGroup

(

short

key

)

Reads the AKS group of which a key is part

Parameters

key	Key (0-6) being queried

Returns

AKS group of which the key is part

short getAVE

(

short

key

)

Reads the current averaging factor setting for a key

Parameters

key	Key being read

Returns

Averaging factor

short getButtons

(

)

Gets the current button states

Returns

Button states

boolean isCalibrating

(

)

Returns the calibrating indicator

Returns

True if calibration is in progress

boolean isOverflowed

(

)

Returns the overflow indicator

Returns

True if overflow is indicated

short readByte

(

short

reg

)

Read a byte value from the register

Parameters

reg	Register location to read from

Returns

Value in the specified register

int readWord

(

short

reg

)

Read a word value from the register. Note: the device must have the auto-increment bit set in the MODE1 register to work.

Parameters

reg	Register location to read from

Returns

Value in the specified register

boolean reset

(

)

Issues a reset command

Returns

True if successful

short setAKSGroup	(	short	key,
		short	group
	)

Changes the AKS group of which a key is part

Parameters

key	Key (0-6) being changed
group	New group for the key

Returns

New value on the sensor

short setAVE	(	short	key,
		short	ave
	)

Changes the averaging factor setting for a key

Parameters

key	Key being changed
ave	New averaging factor

Returns

New averaging factor as read from the device

short setLPMode

(

short

mode

)

Changes the low-pomer mode setting on the sensor

Parameters

mode	dDsired new mode

Returns

New setting on the sensor

void updateState

(

)

Reads the current touch status and detection state

Returns

Key status bits for all keys (0-6)

boolean writeByte	(	short	reg,
		short	arg1
	)

Writes a byte value into the register

Parameters

reg	Register location to write into
byte	Byte to write

Returns

True if successful

boolean writeWord	(	short	reg,
		int	word
	)

Writes a word value into the register. Note: the device must have the auto-increment bit set in the MODE1 register to work.

Parameters

reg	Register location to write into
word	Word to write

Returns

True if successful

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

• /var/lib/jenkins/workspace/upm-doc-stable/build-33/src/at42qt1070/AT42QT1070.java