Class for 7-segment numeric displays. More...

#include <Adafruit_LEDBackpack.h>

Inheritance diagram for Adafruit_7segment:

Public Member Functions
	Adafruit_7segment (void)
	Constructor for 7-segment numeric displays.

size_t	write (char c)
	Issue single character to display. More...

size_t	write (const char *buffer, size_t size)
	Write characters from buffer to display. More...

void	print (char c)
	Print byte-size numeric value to 7-segment display. More...

void	print (unsigned char b, int base=RAW_BITS)
	Print unsigned byte-size numeric value to 7-segment display. More...

void	print (int n, int base=DEC)
	Print integer value to 7-segment display. More...

void	print (unsigned int n, int base=DEC)
	Print unsigned integer value to 7-segment display. More...

void	print (long n, int base=DEC)
	Print long integer value to 7-segment display. More...

void	print (unsigned long n, int base=DEC)
	Print unsigned long integer value to 7-segment display. More...

void	print (double n, int digits=2)
	Print double-precision float value to 7-segment display. More...

void	print (const String &c)
	Print from a String object to 7-segment display. More...

void	print (const char c[])
	Print from a C-style string array to 7-segment display. More...

void	println (char c)
	Print byte-size numeric value w/newline to 7-segment display. More...

void	println (unsigned char b, int base=RAW_BITS)
	Print unsigned byte-size numeric value w/newline to 7-segment display. More...

void	println (int n, int base=DEC)
	Print integer value with newline to 7-segment display. More...

void	println (unsigned int n, int base=DEC)
	Print unsigned integer value with newline to 7-segment display. More...

void	println (long n, int base=DEC)
	Print long integer value with newline to 7-segment display. More...

void	println (unsigned long n, int base=DEC)
	Print unsigned long integer value w/newline to 7-segment display. More...

void	println (double n, int digits=2)
	Print double-precision float value to 7-segment display. More...

void	println (const String &c)
	Print from a String object w/newline to 7-segment display. More...

void	println (const char c[])
	Print from a C-style string array w/newline to 7-segment display. More...

void	println (void)
	Print newline to 7-segment display (rewind position to start).

void	writeDigitRaw (uint8_t x, uint8_t bitmask)
	Write raw segment bits into display buffer. More...

void	writeDigitNum (uint8_t x, uint8_t num, bool dot=false)
	Set specific digit # to a numeric value. More...

void	writeDigitAscii (uint8_t x, uint8_t c, bool dot=false)
	Set specific digit # to a character value. More...

void	drawColon (bool state)
	Set or unset colon segment. More...

void	printNumber (long n, uint8_t base=2)
	General integer-printing function used by some of the print() variants. More...

void	printFloat (double n, uint8_t fracDigits=2, uint8_t base=DEC)
	General float-printing function used by some of the print() variants. More...

void	printError (void)
	Light display segments in an error-indicating configuration.

void	writeColon (void)
	Issue colon-on directly to display (bypass buffer).

Public Member Functions inherited from Adafruit_LEDBackpack
	Adafruit_LEDBackpack (void)
	Constructor for HT16K33 devices.

bool	begin (uint8_t _addr=0x70, TwoWire *theWire=&Wire)
	Start I2C and initialize display state (blink off, full brightness). More...

void	setDisplayState (bool state)
	Turn display on or off. More...

void	setBrightness (uint8_t b)
	Set display brightness. More...

void	blinkRate (uint8_t b)
	Set display blink rate. More...

void	writeDisplay (void)
	Issue buffered data in RAM to display.

void	clear (void)
	Clear display.

Additional Inherited Members
Public Attributes inherited from Adafruit_LEDBackpack
uint16_t	displaybuffer [8]
	Raw display data.

Protected Attributes inherited from Adafruit_LEDBackpack
Adafruit_I2CDevice *	i2c_dev = NULL
	Pointer to I2C bus interface.

Detailed Description

Class for 7-segment numeric displays.

Member Function Documentation

◆ write() [1/2]

size_t Adafruit_7segment::write ( char c )

Issue single character to display.

Parameters

c	Character to write (ASCII character, not numeric).

Returns: 1 if character written, else 0 (non-ASCII characters).

◆ write() [2/2]

size_t Adafruit_7segment::write	(	const char *	buffer,
		size_t	size
	)

Write characters from buffer to display.

Parameters

buffer	Character array to write
size	Number of characters to write

Returns: Number of characters written

◆ print() [1/9]

void Adafruit_7segment::print ( char c )

Print byte-size numeric value to 7-segment display.

Parameters

c	Numeric value.

◆ print() [2/9]

void Adafruit_7segment::print	(	unsigned char	b,
		int	base = `RAW_BITS`
	)

Print unsigned byte-size numeric value to 7-segment display.

Parameters

b	Numeric value.
base	Number base (default = RAW_BITS = raw bits)

◆ print() [3/9]

void Adafruit_7segment::print	(	int	n,
		int	base = `DEC`
	)

Print integer value to 7-segment display.

Parameters

n	Numeric value.
base	Number base (default = DEC = base 10)

◆ print() [4/9]

void Adafruit_7segment::print	(	unsigned int	n,
		int	base = `DEC`
	)

Print unsigned integer value to 7-segment display.

Parameters

n	Numeric value.
base	Number base (default = DEC = base 10)

◆ print() [5/9]

void Adafruit_7segment::print	(	long	n,
		int	base = `DEC`
	)

Print long integer value to 7-segment display.

Parameters

n	Numeric value.
base	Number base (default = DEC = base 10)

◆ print() [6/9]

void Adafruit_7segment::print	(	unsigned long	n,
		int	base = `DEC`
	)

Print unsigned long integer value to 7-segment display.

Parameters

n	Numeric value.
base	Number base (default = DEC = base 10)

◆ print() [7/9]

void Adafruit_7segment::print	(	double	n,
		int	digits = `2`
	)

Print double-precision float value to 7-segment display.

Parameters

n	Numeric value.
digits	Fractional-part digits.

◆ print() [8/9]

void Adafruit_7segment::print ( const String & c )

Print from a String object to 7-segment display.

Parameters

c	String object, passed by reference.

◆ print() [9/9]

void Adafruit_7segment::print ( const char c[] )

Print from a C-style string array to 7-segment display.

Parameters

c	Array of characters.

◆ println() [1/9]

void Adafruit_7segment::println ( char c )

Print byte-size numeric value w/newline to 7-segment display.

Parameters

c	Numeric value.

◆ println() [2/9]

void Adafruit_7segment::println	(	unsigned char	b,
		int	base = `RAW_BITS`
	)

Print unsigned byte-size numeric value w/newline to 7-segment display.

Parameters

b	Numeric value.
base	Number base (default = RAW_BITS = raw bits)

◆ println() [3/9]

void Adafruit_7segment::println	(	int	n,
		int	base = `DEC`
	)

Print integer value with newline to 7-segment display.

Parameters

n	Numeric value.
base	Number base (default = DEC = base 10)

◆ println() [4/9]

void Adafruit_7segment::println	(	unsigned int	n,
		int	base = `DEC`
	)

Print unsigned integer value with newline to 7-segment display.

Parameters

n	Numeric value.
base	Number base (default = DEC = base 10)

◆ println() [5/9]

void Adafruit_7segment::println	(	long	n,
		int	base = `DEC`
	)

Print long integer value with newline to 7-segment display.

Parameters

n	Numeric value.
base	Number base (default = DEC = base 10)

◆ println() [6/9]

void Adafruit_7segment::println	(	unsigned long	n,
		int	base = `DEC`
	)

Print unsigned long integer value w/newline to 7-segment display.

Parameters

n	Numeric value.
base	Number base (default = DEC = base 10)

◆ println() [7/9]

void Adafruit_7segment::println	(	double	n,
		int	digits = `2`
	)

Print double-precision float value to 7-segment display.

Parameters

n	Numeric value.
digits	Fractional-part digits.

◆ println() [8/9]

void Adafruit_7segment::println ( const String & c )

Print from a String object w/newline to 7-segment display.

Parameters

c	String object, passed by reference.

◆ println() [9/9]

void Adafruit_7segment::println ( const char c[] )

Print from a C-style string array w/newline to 7-segment display.

Parameters

c	Array of characters.

◆ writeDigitRaw()

void Adafruit_7segment::writeDigitRaw	(	uint8_t	x,
		uint8_t	bitmask
	)

Write raw segment bits into display buffer.

Parameters

x	Character position (0-3).
bitmask	Segment bits.

◆ writeDigitNum()

void Adafruit_7segment::writeDigitNum	(	uint8_t	x,
		uint8_t	num,
		bool	dot = `false`
	)

Set specific digit # to a numeric value.

Parameters

x	Character position.
num	Numeric (not ASCII) value.
dot	If true, light corresponding decimal.

◆ writeDigitAscii()

void Adafruit_7segment::writeDigitAscii	(	uint8_t	x,
		uint8_t	c,
		bool	dot = `false`
	)

Set specific digit # to a character value.

Parameters

x	Character position.
c	Character (ASCII).
dot	If true, light corresponding decimal.

◆ drawColon()

void Adafruit_7segment::drawColon ( bool state )

Set or unset colon segment.

Parameters

state 'true' to enable colon, 'false' for off.

◆ printNumber()

void Adafruit_7segment::printNumber	(	long	n,
		uint8_t	base = `2`
	)

General integer-printing function used by some of the print() variants.

Parameters

n	Numeric value.
base	Base (2 = binary).

◆ printFloat()

void Adafruit_7segment::printFloat	(	double	n,
		uint8_t	fracDigits = `2`,
		uint8_t	base = `DEC`
	)

General float-printing function used by some of the print() variants.

Parameters

n	Numeric value.
fracDigits	Fractional-part digits.
base	Base (default DEC = base 10).

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

Public Member Functions

Additional Inherited Members

Detailed Description

Member Function Documentation

◆ write() [1/2]

◆ write() [2/2]

◆ print() [1/9]

◆ print() [2/9]

◆ print() [3/9]

◆ print() [4/9]

◆ print() [5/9]

◆ print() [6/9]

◆ print() [7/9]

◆ print() [8/9]

◆ print() [9/9]

◆ println() [1/9]

◆ println() [2/9]

◆ println() [3/9]

◆ println() [4/9]

◆ println() [5/9]

◆ println() [6/9]

◆ println() [7/9]

◆ println() [8/9]

◆ println() [9/9]

◆ writeDigitRaw()

◆ writeDigitNum()

◆ writeDigitAscii()

◆ drawColon()

◆ printNumber()

◆ printFloat()