AnalogDriverESP32 Class Reference

Please use AnalogAudioStream: A very fast ADC and DAC using the ESP32 I2S interface. More...

#include <AnalogDriverESP32.h>

Inheritance diagram for AnalogDriverESP32:

Public Member Functions
	AnalogDriverESP32 ()=default
	Default constructor.
virtual	~AnalogDriverESP32 ()
	Destructor.
virtual int	available () override
virtual int	availableForWrite ()
bool	begin (AnalogConfigESP32 cfg)
	starts the DAC
void	end () override
	stops the I2S and unistalls the driver
size_t	readBytes (uint8_t *dest, size_t size_bytes) override
size_t	write (const uint8_t *src, size_t size_bytes) override
	writes the data to the I2S interface

Protected Member Functions
size_t	outputMono (const void *src, size_t size_bytes)
size_t	outputStereo (const void *src, size_t size_bytes)
void	setupInputPin (int gpio)
	Defines the current ADC pin. The following GPIO pins are supported: GPIO32-GPIO39.

Protected Attributes
bool	active = false
adc1_channel_t	adc_channel
AnalogConfigESP32	adc_config
adc_unit_t	adc_unit
ConverterAutoCenter	auto_center
bool	is_driver_installed = false
i2s_port_t	port_no
size_t	result =0

Detailed Description

Please use AnalogAudioStream: A very fast ADC and DAC using the ESP32 I2S interface.

Author

Phil Schatzmann

Copyright

GPLv3

Member Function Documentation

available()

virtual int available ( )

inlineoverridevirtual

Implements AnalogDriverBase.

begin()

bool begin ( AnalogConfigESP32  cfg )

inlinevirtual

starts the DAC

Implements AnalogDriverBase.

end()

void end ( )

inlineoverridevirtual

stops the I2S and unistalls the driver

Implements AnalogDriverBase.

readBytes()

size_t readBytes ( uint8_t *  dest, size_t  size_bytes  )

inlineoverridevirtual

Implements AnalogDriverBase.

write()

size_t write ( const uint8_t *  src, size_t  size_bytes  )

inlineoverridevirtual

writes the data to the I2S interface

Reimplemented from AnalogDriverBase.

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

• src/AudioTools/CoreAudio/AudioAnalog/AnalogDriverESP32.h