Main mpr121 class. More...

#include <QuickMpr121.h>

Public Member Functions
	mpr121 (byte addr=0, TwoWire *wire=&Wire)
	Creates an MPR121 device with sane default settings. More...

bool	readTouchState (byte electrode)
	Reads one touch state bool. More...

short	readTouchState ()
	Reads the 13 touch state bits. More...

short	readOORState ()
	Reads the 15 out of range bits. More...

bool	readOverCurrent ()
	Reads the over current flag. More...

void	clearOverCurrent ()
	Clears the over current flag. More...

short *	readElectrodeData (byte electrode, byte count)
	Reads filtered analog data for consecutive electrodes. More...

short	readElectrodeData (byte electrode)
	Reads filtered analog data for a single electrode. More...

byte *	readElectrodeBaseline (byte electrode, byte count)
	Reads baseline values for consecutive electrodes. More...

byte	readElectrodeBaseline (byte electrode)
	Reads the baseline value for a single electrode. More...

void	writeElectrodeBaseline (byte electrode, byte count, byte value)
	Writes a baseline value to consecutive electrodes. More...

void	writeElectrodeBaseline (byte electrode, byte value)
	Writes the baseline value for a single electrode. More...

void	setAllThresholds (byte touched, byte released, bool prox)
	A quick way to set all ::touchThresholds and ::releaseThresholds. More...

byte *	readElectrodeCDC (byte electrode, byte count)
	Reads per-electrode "Charge Discharge Current" (μA) for consecutive electrodes. More...

byte	readElectrodeCDC (byte electrode)
	Reads per-electrode "Charge Discharge Current" (μA) for a single electrode. More...

void	writeElectrodeCDC (byte electrode, byte count, byte value)
	Writes per-electrode "Charge Discharge Current" (μA) for consecutive electrodes. More...

void	writeElectrodeCDC (byte electrode, byte value)
	Writes per-electrode "Charge Discharge Current" (μA) for a single electrode. More...

mpr121FilterCDT *	readElectrodeCDT (byte electrode, byte count)
	Reads per-electrode "Charge Discharge Time" (μs) for consecutive electrodes. More...

mpr121FilterCDT	readElectrodeCDT (byte electrode)
	Reads per-electrode "Charge Discharge Time" (μs) for a single electrode. More...

void	writeElectrodeCDT (byte electrode, byte count, mpr121FilterCDT value)
	Writes per-electrode "Charge Discharge Time" (μs) for consecutive electrodes. More...

void	writeElectrodeCDT (byte electrode, mpr121FilterCDT value)
	Writes per-electrode "Charge Discharge Time" (μs) for a single electrode. More...

void	setGPIOMode (byte pin, byte count, mpr121GPIOMode mode)
	Sets pin mode for consecutive GPIO pins. More...

void	setGPIOMode (byte pin, mpr121GPIOMode mode)
	Sets pin mode for a single GPIO pin. More...

void	writeGPIODigital (byte pin, byte count, bool value)
	Writes a digital value to consecutive GPIO pins. More...

void	writeGPIODigital (byte pin, bool value)
	Writes a digital value to a single GPIO pin. More...

void	writeGPIOAnalog (byte pin, byte count, byte value)
	Writes an "analog" (PWM) value to consecutive GPIO pins. More...

void	writeGPIOAnalog (byte pin, byte value)
	Writes an "analog" (PWM) value to a single GPIO pin. More...

void	begin (unsigned long clock=400000)
	Optional alternative to using Wire.begin() and Wire.setClock(). More...

void	start (byte electrodes)
	Applies settings and enters run mode with a given number of electrodes. More...

void	stop ()
	Exits run mode. More...

bool	checkRunning ()
	Checks if the MPR121 is in run mode. More...

void	softReset ()
	Resets the MPR121. More...

Public Attributes
byte	touchThresholds [13]
	Touch detection thresholds for ELE0-ELE11 and ELEPROX. More...

byte	releaseThresholds [13]
	Release detection thresholds for ELE0-ELE11 and ELEPROX. More...

byte	MHDrising
	"Max Half Delta" rising baseline adjustment value (AN3891) – max: 63 More...

byte	MHDfalling
	"Max Half Delta" falling baseline adjustment value (AN3891) – max: 63 More...

byte	NHDrising
	"Noise Half Delta" rising baseline adjustment value (AN3891) – max: 63 More...

byte	NHDfalling
	"Noise Half Delta" falling baseline adjustment value (AN3891) – max: 63 More...

byte	NHDtouched
	"Noise Half Delta" touched baseline adjustment value (AN3891) – max: 63 More...

byte	NCLrising
	"Noise Count Limit" rising baseline adjustment value (AN3891) More...

byte	NCLfalling
	"Noise Count Limit" falling baseline adjustment value (AN3891) More...

byte	NCLtouched
	"Noise Count Limit" touched baseline adjustment value (AN3891) More...

byte	FDLrising
	"Filter Delay Limit" rising baseline adjustment value (AN3891) More...

byte	FDLfalling
	"Filter Delay Limit" falling baseline adjustment value (AN3891) More...

byte	FDLtouched
	"Filter Delay Limit" touched baseline adjustment value (AN3891) More...

byte	MHDrisingProx
	"Max Half Delta" rising value for proximity detection (AN3891/AN3893) – max: 63 More...

byte	MHDfallingProx
	"Max Half Delta" falling value for proximity detection (AN3891/AN3893) – max: 63 More...

byte	NHDrisingProx
	"Noise Half Delta" rising value for proximity detection (AN3891/AN3893) – max: 63 More...

byte	NHDfallingProx
	"Noise Half Delta" falling value for proximity detection (AN3891/AN3893) – max: 63 More...

byte	NHDtouchedProx
	"Noise Half Delta" touched value for proximity detection (AN3891/AN3893) – max: 63 More...

byte	NCLrisingProx
	"Noise Count Limit" rising value for proximity detection (AN3891/AN3893) More...

byte	NCLfallingProx
	"Noise Count Limit" falling value for proximity detection (AN3891/AN3893) More...

byte	NCLtouchedProx
	"Noise Count Limit" touched value for proximity detection (AN3891/AN3893) More...

byte	FDLrisingProx
	"Filter Delay Limit" rising value for proximity detection (AN3891/AN3893) More...

byte	FDLfallingProx
	"Filter Delay Limit" falling value for proximity detection (AN3891/AN3893) More...

byte	FDLtouchedProx
	"Filter Delay Limit" touched value for proximity detection (AN3891/AN3893) More...

byte	debounceTouch
	Set "Debounce" count for touches (times a detection must be sampled) – max: 7. More...

byte	debounceRelease
	Set "Debounce" count for releases (times a detection must be sampled) – max: 7. More...

mpr121FilterFFI	FFI
	"First Filter Iterations" (number of samples taken for the first level of filtering) More...

byte	globalCDC
	Global "Charge Discharge Current" (μA), not used if autoconfig is enabled – max 63. More...

mpr121FilterCDT	globalCDT
	Global "Charge Discharge Time" (μs), not used if autoconfig is enabled. More...

mpr121FilterSFI	SFI
	"Second Filter Iterations" (number of samples taken for the second level of filtering) More...

mpr121FilterESI	ESI
	"Electrode Sample Interval" (ms) More...

mpr121ElectrodeConfigCL	calLock
	"Calibration Lock" (baseline tracking and initial value settings) More...

mpr121ElectrodeConfigProx	proxEnable
	ELEPROX_EN: sets what electrodes will be used for proximity detection. More...

byte	autoConfigUSL
	"Up-Side Limit" for auto calibration – if not set when starting, this will be automatically set to the ideal value for 1.8V supply More...

byte	autoConfigLSL
	"Low-Side Limit" for auto calibration – if not set when starting, this will be automatically set based on USL More...

byte	autoConfigTL
	"Target Level" for auto calibration – if not set when starting, this will be automatically set based on USL More...

mpr121AutoConfigRetry	autoConfigRetry
	Number of retries for failed auto-config before out of range will be set. More...

mpr121AutoConfigBVA	autoConfigBaselineAdjust
	"Baseline Value Adjust" changes how the baseline registers will be set after auto-configuration completes More...

bool	autoConfigEnableReconfig
	"Automatic Reconfiguration Enable" will try to reconfigure out of range (failed) channels every sampling interval More...

bool	autoConfigEnableCalibration
	"Automatic Configuration Enable" will enable/disable auto-configuration when entering run mode More...

bool	autoConfigSkipChargeTime
	"Skip Charge Time Search" will skip searching for charge time and use the already-set per-electrode or global value More...

bool	autoConfigInterruptOOR
	"Out-of-range interrupt enable" will trigger an interrupt when a channel is determined to be out of range More...

bool	autoConfigInterruptARF
	"Auto-reconfiguration fail interrupt enable" will trigger an interrupt when auto-reconfiguration fails More...

bool	autoConfigInterruptACF
	"Auto-configuration fail interrupt enable" will trigger an interrupt when auto-configuration fails More...

Detailed Description

Main mpr121 class.

Use one instance per MPR121.

Definition at line 92 of file QuickMpr121.h.

Constructor & Destructor Documentation

◆ mpr121()

mpr121::mpr121	(	byte	addr = `0`,
		TwoWire *	wire = `&Wire`
	)

Creates an MPR121 device with sane default settings.

Parameters

addr	The I2C address to use. If not specified (or ==0), the next valid address will be chosen automatically.
wire	You can pass in an alternative TwoWire instance.

Definition at line 308 of file QuickMpr121.cpp.

Member Function Documentation

◆ begin()

void mpr121::begin ( unsigned long clock = 400000 )

Optional alternative to using Wire.begin() and Wire.setClock().

Also has a built-in delay to ensure MPR121s are ready.

Definition at line 767 of file QuickMpr121.cpp.

◆ checkRunning()

bool mpr121::checkRunning ( )

Checks if the MPR121 is in run mode.

Definition at line 842 of file QuickMpr121.cpp.

◆ clearOverCurrent()

void mpr121::clearOverCurrent ( )

Clears the over current flag.

(over current on REXT pin, probably shouldn't happen in normal operation)

Definition at line 529 of file QuickMpr121.cpp.

◆ readElectrodeBaseline() [1/2]

byte mpr121::readElectrodeBaseline ( byte electrode )

inline

Reads the baseline value for a single electrode.

Definition at line 445 of file QuickMpr121.h.

◆ readElectrodeBaseline() [2/2]

byte * mpr121::readElectrodeBaseline	(	byte	electrode,
		byte	count
	)

Reads baseline values for consecutive electrodes.

Definition at line 549 of file QuickMpr121.cpp.

◆ readElectrodeCDC() [1/2]

byte mpr121::readElectrodeCDC ( byte electrode )

inline

Reads per-electrode "Charge Discharge Current" (μA) for a single electrode.

Definition at line 477 of file QuickMpr121.h.

◆ readElectrodeCDC() [2/2]

byte * mpr121::readElectrodeCDC	(	byte	electrode,
		byte	count
	)

Reads per-electrode "Charge Discharge Current" (μA) for consecutive electrodes.

Definition at line 588 of file QuickMpr121.cpp.

◆ readElectrodeCDT() [1/2]

mpr121FilterCDT mpr121::readElectrodeCDT ( byte electrode )

inline

Reads per-electrode "Charge Discharge Time" (μs) for a single electrode.

Definition at line 503 of file QuickMpr121.h.

◆ readElectrodeCDT() [2/2]

mpr121FilterCDT * mpr121::readElectrodeCDT	(	byte	electrode,
		byte	count
	)

Reads per-electrode "Charge Discharge Time" (μs) for consecutive electrodes.

Definition at line 613 of file QuickMpr121.cpp.

◆ readElectrodeData() [1/2]

short mpr121::readElectrodeData ( byte electrode )

inline

Reads filtered analog data for a single electrode.

Definition at line 433 of file QuickMpr121.h.

◆ readElectrodeData() [2/2]

short * mpr121::readElectrodeData	(	byte	electrode,
		byte	count
	)

Reads filtered analog data for consecutive electrodes.

Definition at line 535 of file QuickMpr121.cpp.

◆ readOORState()

short mpr121::readOORState ( )

Reads the 15 out of range bits.

[13]: auto-config fail flag [14]: auto-reconfig fail flag

Definition at line 461 of file QuickMpr121.cpp.

◆ readOverCurrent()

bool mpr121::readOverCurrent ( )

Reads the over current flag.

(over current on REXT pin, probably shouldn't happen in normal operation)

Definition at line 523 of file QuickMpr121.cpp.

◆ readTouchState() [1/2]

short mpr121::readTouchState ( )

Reads the 13 touch state bits.

Also use this for reading GPIO inputs.

Definition at line 453 of file QuickMpr121.cpp.

◆ readTouchState() [2/2]

bool mpr121::readTouchState ( byte electrode )

Reads one touch state bool.

Also use this for reading GPIO inputs.

When multiple touches must be read, using the variant that returns data for all 13 is preferred. This does implement a simple cache though, so performance shouldn't be drastically different.

Definition at line 426 of file QuickMpr121.cpp.

◆ setAllThresholds()

void mpr121::setAllThresholds	(	byte	touched,
		byte	released,
		bool	prox
	)

A quick way to set all ::touchThresholds and ::releaseThresholds.

Parameters

prox	Whether to set proximity detection thresholds too.

Definition at line 574 of file QuickMpr121.cpp.

◆ setGPIOMode() [1/2]

void mpr121::setGPIOMode	(	byte	pin,
		byte	count,
		mpr121GPIOMode	mode
	)

Sets pin mode for consecutive GPIO pins.

GPIO can be used on pins 4-11 when they aren't used for sensing. Use mode MPR_GPIO_MODE_OUTPUT_OPENDRAIN_HIGH for direct LED driving – it can source up to 12mA.

Definition at line 662 of file QuickMpr121.cpp.

◆ setGPIOMode() [2/2]

void mpr121::setGPIOMode	(	byte	pin,
		mpr121GPIOMode	mode
	)

inline

Sets pin mode for a single GPIO pin.

GPIO can be used on pins 4-11 when they aren't used for sensing. Use mode MPR_GPIO_MODE_OUTPUT_OPENDRAIN_HIGH for direct LED driving – it can source up to 12mA.

Definition at line 534 of file QuickMpr121.h.

◆ softReset()

void mpr121::softReset ( )

Resets the MPR121.

Definition at line 848 of file QuickMpr121.cpp.

◆ start()

void mpr121::start ( byte electrodes )

Applies settings and enters run mode with a given number of electrodes.

Very much based on the quick start guide (AN3944).

Definition at line 779 of file QuickMpr121.cpp.

◆ stop()

void mpr121::stop ( )

Exits run mode.

Definition at line 835 of file QuickMpr121.cpp.

◆ writeElectrodeBaseline() [1/2]

void mpr121::writeElectrodeBaseline	(	byte	electrode,
		byte	count,
		byte	value
	)

Writes a baseline value to consecutive electrodes.

Definition at line 563 of file QuickMpr121.cpp.

◆ writeElectrodeBaseline() [2/2]

void mpr121::writeElectrodeBaseline	(	byte	electrode,
		byte	value
	)

inline

Writes the baseline value for a single electrode.

Definition at line 457 of file QuickMpr121.h.

◆ writeElectrodeCDC() [1/2]

void mpr121::writeElectrodeCDC	(	byte	electrode,
		byte	count,
		byte	value
	)

Writes per-electrode "Charge Discharge Current" (μA) for consecutive electrodes.

Max: 63

Definition at line 603 of file QuickMpr121.cpp.

◆ writeElectrodeCDC() [2/2]

void mpr121::writeElectrodeCDC	(	byte	electrode,
		byte	value
	)

inline

Writes per-electrode "Charge Discharge Current" (μA) for a single electrode.

Max: 63

Definition at line 491 of file QuickMpr121.h.

◆ writeElectrodeCDT() [1/2]

void mpr121::writeElectrodeCDT	(	byte	electrode,
		byte	count,
		mpr121FilterCDT	value
	)

Writes per-electrode "Charge Discharge Time" (μs) for consecutive electrodes.

Definition at line 633 of file QuickMpr121.cpp.

◆ writeElectrodeCDT() [2/2]

void mpr121::writeElectrodeCDT	(	byte	electrode,
		mpr121FilterCDT	value
	)

inline

Writes per-electrode "Charge Discharge Time" (μs) for a single electrode.

Definition at line 515 of file QuickMpr121.h.

◆ writeGPIOAnalog() [1/2]

void mpr121::writeGPIOAnalog	(	byte	pin,
		byte	count,
		byte	value
	)

Writes an "analog" (PWM) value to consecutive GPIO pins.

Max value is 15

Pin 9 apparently has a logic bug and pin 10 must also have its data set high for it to work. (see https://community.nxp.com/thread/305474)

Definition at line 744 of file QuickMpr121.cpp.

◆ writeGPIOAnalog() [2/2]

void mpr121::writeGPIOAnalog	(	byte	pin,
		byte	value
	)

inline

Writes an "analog" (PWM) value to a single GPIO pin.

Max value is 15

Pin 9 apparently has a logic bug and pin 10 must also have its data set high for it to work. (see https://community.nxp.com/thread/305474)

Definition at line 566 of file QuickMpr121.h.

◆ writeGPIODigital() [1/2]

void mpr121::writeGPIODigital	(	byte	pin,
		bool	value
	)

inline

Writes a digital value to a single GPIO pin.

Definition at line 546 of file QuickMpr121.h.

◆ writeGPIODigital() [2/2]

void mpr121::writeGPIODigital	(	byte	pin,
		byte	count,
		bool	value
	)

Writes a digital value to consecutive GPIO pins.

Definition at line 719 of file QuickMpr121.cpp.

Member Data Documentation

◆ autoConfigBaselineAdjust

mpr121AutoConfigBVA mpr121::autoConfigBaselineAdjust

"Baseline Value Adjust" changes how the baseline registers will be set after auto-configuration completes

Definition at line 366 of file QuickMpr121.h.

◆ autoConfigEnableCalibration

bool mpr121::autoConfigEnableCalibration

"Automatic Configuration Enable" will enable/disable auto-configuration when entering run mode

Definition at line 368 of file QuickMpr121.h.

◆ autoConfigEnableReconfig

bool mpr121::autoConfigEnableReconfig

"Automatic Reconfiguration Enable" will try to reconfigure out of range (failed) channels every sampling interval

Definition at line 367 of file QuickMpr121.h.

◆ autoConfigInterruptACF

bool mpr121::autoConfigInterruptACF

"Auto-configuration fail interrupt enable" will trigger an interrupt when auto-configuration fails

Definition at line 375 of file QuickMpr121.h.

◆ autoConfigInterruptARF

bool mpr121::autoConfigInterruptARF

"Auto-reconfiguration fail interrupt enable" will trigger an interrupt when auto-reconfiguration fails

Definition at line 374 of file QuickMpr121.h.

◆ autoConfigInterruptOOR

bool mpr121::autoConfigInterruptOOR

"Out-of-range interrupt enable" will trigger an interrupt when a channel is determined to be out of range

Definition at line 373 of file QuickMpr121.h.

◆ autoConfigLSL

byte mpr121::autoConfigLSL

"Low-Side Limit" for auto calibration – if not set when starting, this will be automatically set based on USL

Definition at line 363 of file QuickMpr121.h.

◆ autoConfigRetry

mpr121AutoConfigRetry mpr121::autoConfigRetry

Number of retries for failed auto-config before out of range will be set.

Definition at line 365 of file QuickMpr121.h.

◆ autoConfigSkipChargeTime

bool mpr121::autoConfigSkipChargeTime

"Skip Charge Time Search" will skip searching for charge time and use the already-set per-electrode or global value

This results in a shorter time to configure, but the designer must supply appropriate values.

Definition at line 370 of file QuickMpr121.h.

◆ autoConfigTL

byte mpr121::autoConfigTL

"Target Level" for auto calibration – if not set when starting, this will be automatically set based on USL

Definition at line 364 of file QuickMpr121.h.

◆ autoConfigUSL

byte mpr121::autoConfigUSL

"Up-Side Limit" for auto calibration – if not set when starting, this will be automatically set to the ideal value for 1.8V supply

Definition at line 362 of file QuickMpr121.h.

◆ calLock

mpr121ElectrodeConfigCL mpr121::calLock

"Calibration Lock" (baseline tracking and initial value settings)

Definition at line 359 of file QuickMpr121.h.

◆ debounceRelease

byte mpr121::debounceRelease

Set "Debounce" count for releases (times a detection must be sampled) – max: 7.

Definition at line 349 of file QuickMpr121.h.

◆ debounceTouch

byte mpr121::debounceTouch

Set "Debounce" count for touches (times a detection must be sampled) – max: 7.

Definition at line 348 of file QuickMpr121.h.

◆ ESI

mpr121FilterESI mpr121::ESI

"Electrode Sample Interval" (ms)

Definition at line 356 of file QuickMpr121.h.

◆ FDLfalling

byte mpr121::FDLfalling

"Filter Delay Limit" falling baseline adjustment value (AN3891)

Definition at line 328 of file QuickMpr121.h.

◆ FDLfallingProx

byte mpr121::FDLfallingProx

"Filter Delay Limit" falling value for proximity detection (AN3891/AN3893)

Definition at line 344 of file QuickMpr121.h.

◆ FDLrising

byte mpr121::FDLrising

"Filter Delay Limit" rising baseline adjustment value (AN3891)

Definition at line 327 of file QuickMpr121.h.

◆ FDLrisingProx

byte mpr121::FDLrisingProx

"Filter Delay Limit" rising value for proximity detection (AN3891/AN3893)

Definition at line 343 of file QuickMpr121.h.

◆ FDLtouched

byte mpr121::FDLtouched

"Filter Delay Limit" touched baseline adjustment value (AN3891)

Definition at line 329 of file QuickMpr121.h.

◆ FDLtouchedProx

byte mpr121::FDLtouchedProx

"Filter Delay Limit" touched value for proximity detection (AN3891/AN3893)

Definition at line 345 of file QuickMpr121.h.

◆ FFI

mpr121FilterFFI mpr121::FFI

"First Filter Iterations" (number of samples taken for the first level of filtering)

Definition at line 352 of file QuickMpr121.h.

◆ globalCDC

byte mpr121::globalCDC

Global "Charge Discharge Current" (μA), not used if autoconfig is enabled – max 63.

Definition at line 353 of file QuickMpr121.h.

◆ globalCDT

mpr121FilterCDT mpr121::globalCDT

Global "Charge Discharge Time" (μs), not used if autoconfig is enabled.

Definition at line 354 of file QuickMpr121.h.

◆ MHDfalling

byte mpr121::MHDfalling

"Max Half Delta" falling baseline adjustment value (AN3891) – max: 63

Definition at line 317 of file QuickMpr121.h.

◆ MHDfallingProx

byte mpr121::MHDfallingProx

"Max Half Delta" falling value for proximity detection (AN3891/AN3893) – max: 63

Definition at line 333 of file QuickMpr121.h.

◆ MHDrising

byte mpr121::MHDrising

"Max Half Delta" rising baseline adjustment value (AN3891) – max: 63

Definition at line 316 of file QuickMpr121.h.

◆ MHDrisingProx

byte mpr121::MHDrisingProx

"Max Half Delta" rising value for proximity detection (AN3891/AN3893) – max: 63

Definition at line 332 of file QuickMpr121.h.

◆ NCLfalling

byte mpr121::NCLfalling

"Noise Count Limit" falling baseline adjustment value (AN3891)

Definition at line 324 of file QuickMpr121.h.

◆ NCLfallingProx

byte mpr121::NCLfallingProx

"Noise Count Limit" falling value for proximity detection (AN3891/AN3893)

Definition at line 340 of file QuickMpr121.h.

◆ NCLrising

byte mpr121::NCLrising

"Noise Count Limit" rising baseline adjustment value (AN3891)

Definition at line 323 of file QuickMpr121.h.

◆ NCLrisingProx

byte mpr121::NCLrisingProx

"Noise Count Limit" rising value for proximity detection (AN3891/AN3893)

Definition at line 339 of file QuickMpr121.h.

◆ NCLtouched

byte mpr121::NCLtouched

"Noise Count Limit" touched baseline adjustment value (AN3891)

Definition at line 325 of file QuickMpr121.h.

◆ NCLtouchedProx

byte mpr121::NCLtouchedProx

"Noise Count Limit" touched value for proximity detection (AN3891/AN3893)

Definition at line 341 of file QuickMpr121.h.

◆ NHDfalling

byte mpr121::NHDfalling

"Noise Half Delta" falling baseline adjustment value (AN3891) – max: 63

Definition at line 320 of file QuickMpr121.h.

◆ NHDfallingProx

byte mpr121::NHDfallingProx

"Noise Half Delta" falling value for proximity detection (AN3891/AN3893) – max: 63

Definition at line 336 of file QuickMpr121.h.

◆ NHDrising

byte mpr121::NHDrising

"Noise Half Delta" rising baseline adjustment value (AN3891) – max: 63

Definition at line 319 of file QuickMpr121.h.

◆ NHDrisingProx

byte mpr121::NHDrisingProx

"Noise Half Delta" rising value for proximity detection (AN3891/AN3893) – max: 63

Definition at line 335 of file QuickMpr121.h.

◆ NHDtouched

byte mpr121::NHDtouched

"Noise Half Delta" touched baseline adjustment value (AN3891) – max: 63

Definition at line 321 of file QuickMpr121.h.

◆ NHDtouchedProx

byte mpr121::NHDtouchedProx

"Noise Half Delta" touched value for proximity detection (AN3891/AN3893) – max: 63

Definition at line 337 of file QuickMpr121.h.

◆ proxEnable

mpr121ElectrodeConfigProx mpr121::proxEnable

ELEPROX_EN: sets what electrodes will be used for proximity detection.

Definition at line 360 of file QuickMpr121.h.

◆ releaseThresholds

byte mpr121::releaseThresholds[13]

Release detection thresholds for ELE0-ELE11 and ELEPROX.

Definition at line 314 of file QuickMpr121.h.

◆ SFI

mpr121FilterSFI mpr121::SFI

"Second Filter Iterations" (number of samples taken for the second level of filtering)

Definition at line 355 of file QuickMpr121.h.

◆ touchThresholds

byte mpr121::touchThresholds[13]

Touch detection thresholds for ELE0-ELE11 and ELEPROX.

Definition at line 313 of file QuickMpr121.h.

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

src/QuickMpr121.h
src/QuickMpr121.cpp

Public Member Functions

Public Attributes

Detailed Description

Constructor & Destructor Documentation

◆ mpr121()

Member Function Documentation

◆ begin()

◆ checkRunning()

◆ clearOverCurrent()

◆ readElectrodeBaseline() [1/2]

◆ readElectrodeBaseline() [2/2]

◆ readElectrodeCDC() [1/2]

◆ readElectrodeCDC() [2/2]

◆ readElectrodeCDT() [1/2]

◆ readElectrodeCDT() [2/2]

◆ readElectrodeData() [1/2]

◆ readElectrodeData() [2/2]

◆ readOORState()

◆ readOverCurrent()

◆ readTouchState() [1/2]

◆ readTouchState() [2/2]

◆ setAllThresholds()

◆ setGPIOMode() [1/2]

◆ setGPIOMode() [2/2]

◆ softReset()

◆ start()

◆ stop()

◆ writeElectrodeBaseline() [1/2]

◆ writeElectrodeBaseline() [2/2]

◆ writeElectrodeCDC() [1/2]

◆ writeElectrodeCDC() [2/2]

◆ writeElectrodeCDT() [1/2]

◆ writeElectrodeCDT() [2/2]

◆ writeGPIOAnalog() [1/2]

◆ writeGPIOAnalog() [2/2]

◆ writeGPIODigital() [1/2]

◆ writeGPIODigital() [2/2]

Member Data Documentation

◆ autoConfigBaselineAdjust

◆ autoConfigEnableCalibration

◆ autoConfigEnableReconfig

◆ autoConfigInterruptACF

◆ autoConfigInterruptARF

◆ autoConfigInterruptOOR

◆ autoConfigLSL

◆ autoConfigRetry

◆ autoConfigSkipChargeTime

◆ autoConfigTL

◆ autoConfigUSL

◆ calLock

◆ debounceRelease

◆ debounceTouch

◆ ESI

◆ FDLfalling

◆ FDLfallingProx

◆ FDLrising

◆ FDLrisingProx

◆ FDLtouched

◆ FDLtouchedProx

◆ FFI

◆ globalCDC

◆ globalCDT

◆ MHDfalling

◆ MHDfallingProx

◆ MHDrising

◆ MHDrisingProx

◆ NCLfalling

◆ NCLfallingProx

◆ NCLrising

◆ NCLrisingProx

◆ NCLtouched

◆ NCLtouchedProx

◆ NHDfalling

◆ NHDfallingProx

◆ NHDrising

◆ NHDrisingProx

◆ NHDtouched

◆ NHDtouchedProx

◆ proxEnable

◆ releaseThresholds