Adafruit_ADS1X15 Class Reference

Sensor driver for the Adafruit ADS1X15 ADC breakouts. More...

#include <Adafruit_ADS1X15.hpp>

Inheritance diagram for Adafruit_ADS1X15:

Public Member Functions
	Adafruit_ADS1X15 (TwoWire &w, uint8_t i2c_addr=ADS1X15_ADDRESS)
	Bind the I2C bus and address. Use an ADS1015/ADS1115 subclass to set resolution defaults.
bool	begin ()
	Initialize I2C and probe the configured address; return true on acknowledgement.
int16_t	readADC_SingleEnded (uint8_t channel)
	Block for a single-ended raw ADC conversion.
int16_t	readADC_Differential_0_1 ()
	Block for raw signed ADC counts from AIN0 minus AIN1.
int16_t	readADC_Differential_0_3 ()
	Block for raw signed ADC counts from AIN0 minus AIN3.
int16_t	readADC_Differential_1_3 ()
	Block for raw signed ADC counts from AIN1 minus AIN3.
int16_t	readADC_Differential_2_3 ()
	Block for raw signed ADC counts from AIN2 minus AIN3.
void	startComparator_SingleEnded (uint8_t channel, int16_t threshold)
	Start continuous comparator operation for channel 0 through 3.
int16_t	getLastConversionResults ()
	Read the conversion register and return signed counts at the device resolution.
float	computeVolts (int16_t counts)
	Convert counts to volts using the configured gain and ADC resolution.
void	setGain (adsGain_t gain)
	Cache the PGA gain used by subsequent conversions and computeVolts().
adsGain_t	getGain ()
	Return the cached PGA gain.
void	setDataRate (uint16_t rate)
	Cache a device-specific RATE_ADS1015_* or RATE_ADS1115_* register setting.
uint16_t	getDataRate ()
	Return the cached data-rate register setting, not a numeric samples/second value.
void	startADCReading (uint16_t mux, bool continuous)
	Start a conversion without waiting.
bool	conversionComplete ()
	Return the configuration OS bit; used to poll single-shot completion.

Protected Attributes
TwoWire &	wire
	I2C bus device.
uint8_t	i2c_addr
uint8_t	m_bitShift
	bit shift amount
adsGain_t	m_gain
	ADC gain.
uint16_t	m_dataRate
	Data rate.

Detailed Description

Sensor driver for the Adafruit ADS1X15 ADC breakouts.

Member Function Documentation

readADC_SingleEnded()

int16_t Adafruit_ADS1X15::readADC_SingleEnded

(

uint8_t

channel

)

Block for a single-ended raw ADC conversion.

Parameters

channel

Input channel 0 through 3.

Returns

ADC counts, or zero for an invalid channel. No conversion timeout is enforced.

startADCReading()

void Adafruit_ADS1X15::startADCReading	(	uint16_t	mux,
		bool	continuous )

Start a conversion without waiting.

Parameters

mux	ADS1X15_REG_CONFIG_MUX_* channel selection.
continuous	True selects continuous conversion; false selects single-shot. Poll conversionComplete() for single-shot completion, then read the result.

startComparator_SingleEnded()

void Adafruit_ADS1X15::startComparator_SingleEnded	(	uint8_t	channel,
		int16_t	threshold )

Start continuous comparator operation for channel 0 through 3.

Parameters

channel	Single-ended input.
threshold	Comparator threshold in ADC counts.

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

• include/dev/Adafruit_ADS1X15.hpp