ADC (Analog to Digital Converter)

Files
file	adc.h
	Interface to the AD-converter of the ATmega32, which allows to query the potentiometer and the photosensor of the board.
Enumerations
enum	ADCDEV { PHOTO = 0, POTI = 1 }
	device ids of available periphery connected to ADC channels. More...
Functions
int16_t	sb_adc_read (ADCDEV dev)
	perform a 10-bit A/D conversion for a specific channel/device.

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Enumeration Type Documentation

enum ADCDEV

device ids of available periphery connected to ADC channels.

Enumerator:

PHOTO	the photosensor (brighter ambience yields higher numbers)
POTI	the potentiometer (rotation towards LEDs yields higher numbers)

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Function Documentation

int16_t sb_adc_read

(

ADCDEV

dev

)

perform a 10-bit A/D conversion for a specific channel/device.

Parameters:

dev

id of a device connected to the ADC

Returns:

the positive 10-bit result of the conversion, or a negative value on error

Return values:

-1

invalid device id