Documentation
¶
Index ¶
- Constants
- func NumToArray(number int) []int
- type SevenSegment
- func (ss *SevenSegment) AlphaToSegments(letter byte) uint16
- func (ss *SevenSegment) ArrayToSegments(segments_on [7]bool) uint16
- func (ss *SevenSegment) Clear()
- func (ss *SevenSegment) DisplayOn()
- func (ss *SevenSegment) HwPos(human_pos int) int
- func (ss *SevenSegment) IntToSs(digit int) uint16
- func (ss *SevenSegment) OscillatorOn()
- func (ss *SevenSegment) SetAlpha(pos int, letter byte)
- func (ss *SevenSegment) SetBrightness(brightness int)
- func (ss *SevenSegment) SetDigit(pos int, digit int)
- func (ss *SevenSegment) SetNum(number int) (err error)
- func (ss *SevenSegment) SetSegments(human_pos int, on [7]bool)
- func (ss *SevenSegment) WriteData()
- func (ss *SevenSegment) WriteRaw(data []byte)
Constants ¶
const ( IndMidTop = iota IndMidBtt = iota IndLeftTop = iota IndLeftBtt = iota IndRightTop = iota )
Dot LED indicators on Segment 4
Variables ¶
This section is empty.
Functions ¶
func NumToArray ¶
Return array (reverse order) of digits for a given 1-4 digit number
Types ¶
type SevenSegment ¶
type SevenSegment struct { Buffer [10]uint16 // contains filtered or unexported fields }
Sevensegment with a buffer to hold desired segment state
func NewSevenSegment ¶
func NewSevenSegment(addr byte) (ss *SevenSegment)
func (*SevenSegment) AlphaToSegments ¶
func (ss *SevenSegment) AlphaToSegments(letter byte) uint16
Return 2 byte value which segments should be on for a supplied letter
func (*SevenSegment) ArrayToSegments ¶
func (ss *SevenSegment) ArrayToSegments(segments_on [7]bool) uint16
Return 2 byte value representing which segments are on for supplied array of 'on' segments
func (*SevenSegment) DisplayOn ¶
func (ss *SevenSegment) DisplayOn()
Command to turn on display is 0x81
func (*SevenSegment) HwPos ¶
func (ss *SevenSegment) HwPos(human_pos int) int
Translate human pos on display (0 - 4) to corresponding rows in HT16K33 mem that reference a digit or colons, pos 5 is colons.
func (*SevenSegment) IntToSs ¶
func (ss *SevenSegment) IntToSs(digit int) uint16
Returns 2 byt val representing the data required to turn segments on for supplied 'digit' similar to numbertable at: https://github.com/adafruit/Adafruit_LED_Backpack/blob/master/Adafruit_LEDBackpack.cpp
func (*SevenSegment) OscillatorOn ¶
func (ss *SevenSegment) OscillatorOn()
Command to turn on oscillator
func (*SevenSegment) SetAlpha ¶
func (ss *SevenSegment) SetAlpha(pos int, letter byte)
Set letter at position from 0 to 3 from right to left
func (*SevenSegment) SetBrightness ¶
func (ss *SevenSegment) SetBrightness(brightness int)
Set brightness from 0-15
func (*SevenSegment) SetDigit ¶
func (ss *SevenSegment) SetDigit(pos int, digit int)
Set digit at position from 0 to 3 from right to left
func (*SevenSegment) SetNum ¶
func (ss *SevenSegment) SetNum(number int) (err error)
Set a number on the display up to 9999. A negative number will result in --- being displayed.
func (*SevenSegment) SetSegments ¶
func (ss *SevenSegment) SetSegments(human_pos int, on [7]bool)
Set specific segments on for digit at pos 0 to 3 from right to left To determine which segments, we label the segments 0-6 starting from topmost horizontal, incrementing clockwise to 5, and 6 is the middle horizontal and specify which are on in an array
func (*SevenSegment) WriteData ¶
func (ss *SevenSegment) WriteData()
Write out my buffer, this will actually display segments
func (*SevenSegment) WriteRaw ¶
func (ss *SevenSegment) WriteRaw(data []byte)
Write raw data to bus, useful for setting up the seven segment