Wim Huiskamp / PCF8591

Library for NXP (Philips) PCF8591 I2C 4 Channel, 8bit Analog to Digital converter and a 1 Channel, 8bit Digital to Analog converter.

Dependents:   812_hello PCF8591_test_LAAS

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PCF8591 Class Reference
Public Member Functions | Protected Member Functions

PCF8591 Class Reference

Create a PCF8591 object connected to the specified I2C bus and deviceAddress. More...

#include <PCF8591.h>

Public Member Functions

 PCF8591 (I2C *i2c, uint8_t deviceAddress=PCF8591_SA0)
 Create a PCF8591 AD and DA object using a specified I2C bus and slaveaddress.
void setADCMode (uint8_t mode)
 Set ADC mode.
void setDACMode (bool mode)
 Set DAC mode.
void write (uint8_t analogOut)
 Write Analog Output.
uint8_t read (uint8_t channel)
 Read Analog Channel.

Protected Member Functions

void _init ()
 Initialise AD and DA driver.

Detailed Description

Create a PCF8591 object connected to the specified I2C bus and deviceAddress.

Definition at line 105 of file PCF8591.h.

Constructor & Destructor Documentation

PCF8591 ( I2C *  i2c,
uint8_t  deviceAddress = PCF8591_SA0 
)

Create a PCF8591 AD and DA object using a specified I2C bus and slaveaddress.

Parameters:
I2C&i2c the I2C port to connect to
chardeviceAddress the address of the PCF8591

Definition at line 17 of file PCF8591.cpp.

Member Function Documentation

void _init (  ) [protected]

Initialise AD and DA driver.

Definition at line 158 of file PCF8591.cpp.

uint8_t read ( uint8_t  channel )

Read Analog Channel.

Parameters:
ChannelADC channel, valid range PCF8591_ADC0, PCF8591_ADC1, PCF8591_ADC2 or PCF8591_ADC3
Returns:
value uint8_t AD converted value (0..255, representing 0V..Vcc)

Definition at line 105 of file PCF8591.cpp.

void setADCMode ( uint8_t  mode )

Set ADC mode.

Parameters:
adc_modeADC Channel mode, valid Range (PCF8591_4S, PCF8591_3D, PCF8591_2S_1D, PCF8591_2D)

Definition at line 32 of file PCF8591.cpp.

void setDACMode ( bool  mode )

Set DAC mode.

Parameters:
dac_modeDAC Channel mode, valid Range (false=disable, true=enable)

Definition at line 66 of file PCF8591.cpp.

void write ( uint8_t  analogOut )

Write Analog Output.

Parameters:
analogOutoutput value (0..255)

Definition at line 87 of file PCF8591.cpp.

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