util

package

v0.0.0-...-a3207ce Latest Latest Go to latest Published: Mar 16, 2024 License: MIT Imports: 19 Imported by: 0

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Repository

github.com/shanghuiyang/rpi-projects

Links

Open Source Insights

Documentation ¶

Index ¶

Constants
func AlmostEqual(a, b float64) bool
func DelayMin(d time.Duration)
func DelayMs(d time.Duration)
func DelaySec(d time.Duration)
func DelayUs(d time.Duration)
func GetIP() string
func GetVolume() (int, error)
func IncludedAngle(from, to float64) float64
func PlayMp3(mp3 string) error
func PlayWav(wav string) error
func Record(sec int, saveTo string) error
func Reverse(s string) string
func SetVolume(v int) error
func StartMotion(config ...string) error
func StopMotion() error
func StopMp3() error
func StopWav() error
func WaitQuit(beforeQuitFunc func())
type Email
- func NewEmail(cfg *EmailConfig) *Email
- func (e *Email) Send(info *EmailInfo) error
type EmailConfig
type EmailInfo
type GPSLogger
- func NewGPSLogger(file string) (*GPSLogger, error)
- func (l *GPSLogger) Close()
- func (l *GPSLogger) Printf(format string, v ...interface{})
type Logger
type MapRender
- func NewMapRender() *MapRender
- func (m *MapRender) AddMarker(marker *sm.Marker)
- func (m *MapRender) ClearMarker()
- func (m *MapRender) Render() ([]byte, error)
- func (m *MapRender) RenderImg() (*image.Image, error)
- func (m *MapRender) SetCache(cache sm.TileCache)
- func (m *MapRender) SetCenter(pt *geo.Point)
- func (m *MapRender) SetSize(width, height int)
- func (m *MapRender) SetTileProvider(tileProvider *sm.TileProvider)
- func (m *MapRender) SetZoom(zoom int)
type Mode
type NoopLogger
- func NewNoopLogger() *NoopLogger
- func (l *NoopLogger) Close()
- func (n *NoopLogger) Printf(format string, v ...interface{})
type Point
- func (p *Point) String() string
type Streamer
- func NewStreamer(url string) (*Streamer, error)
- func (s *Streamer) Push(img []byte)

Constants ¶

View Source

const (
	// Epsilon ...
	Epsilon = 1e-9

	// DevMode ...
	DevMode = "dev"
	// PrdMode ...
	PrdMode = "prd"
)

Variables ¶

This section is empty.

Functions ¶

func AlmostEqual ¶

func AlmostEqual(a, b float64) bool

func GetVolume ¶

func GetVolume() (int, error)

GetVolume gets the volume using amixer

command line: amixer -M get PCM output: ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Simple mixer control 'PCM',0

Capabilities: pvolume pvolume-joined pswitch pswitch-joined
Playback channels: Mono
Limits: Playback 0 - 255
Mono: Playback 115 [45%] [-127.55dB] [on]

// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

func IncludedAngle ¶

func IncludedAngle(from, to float64) float64

IncludedAngle caculates the included angle betweet fromAngle to toAngle

func PlayMp3 ¶

func PlayMp3(mp3 string) error

PlayMp3 play mp3 audio using mpg123 you need to install mpg123 first

func Record ¶

func Record(sec int, saveTo string) error

Record records voice using arecord you need to setup a micro-phone and set it as default device arecord usage: -D: device, use commond "$arecord -l" for viewing card number and device number like 1,0 -d 3: 3 seconds -t wav: wav type -r 16000: Rate 16000 Hz -c 1: 1 channel -f S16_LE: Signed 16 bit Little Endian

func Reverse ¶

func Reverse(s string) string

Reverse reverses the string

func SetVolume ¶

func SetVolume(v int) error

SetVolume sets the volume using amixer

func StartMotion ¶

func StartMotion(config ...string) error

StartMotion start the Motion Service if config file doesn't be provided, the default config file will be used the default config file locates /etc/motion/motion.conf

func StopMotion ¶

func StopMotion() error

StopMotion ...

func StopMp3 ¶

func StopMp3() error

StopMp3 stops to play mp3

func StopWav ¶

func StopWav() error

StopWav stops to play wav

func WaitQuit ¶

func WaitQuit(beforeQuitFunc func())

WaitQuit ...

Types ¶

type Email ¶

type Email struct {
	SMTP     string
	SMTPPort int
	POP      string
	POPPort  int
	Address  string
	Password string
}

Email ...

func NewEmail ¶

func NewEmail(cfg *EmailConfig) *Email

NewEmail ...

func (*Email) Send ¶

func (e *Email) Send(info *EmailInfo) error

Send ...

type EmailConfig ¶

type EmailConfig struct {
	SMTP     string `json:"smtp"`
	SMTPPort int    `json:"smtp_port"`
	POP      string `json:"pop"`
	POPPort  int    `json:"pop_port"`
	Address  string `json:"addr"`
	Password string `json:"password"`
}

EmailConfig ...

type EmailInfo ¶

type EmailInfo struct {
	To      []string
	Subject string
	Body    string
}

EmailInfo ...

type GPSLogger ¶

type GPSLogger struct {
	// contains filtered or unexported fields
}

GPSLogger ...

func NewGPSLogger ¶

func NewGPSLogger(file string) (*GPSLogger, error)

NewGPSLogger ...

func (*GPSLogger) Close ¶

func (l *GPSLogger) Close()

Close ...

func (*GPSLogger) Printf ¶

func (l *GPSLogger) Printf(format string, v ...interface{})

type Logger ¶

type Logger interface {
	Printf(format string, v ...interface{})
	Close()
}

type MapRender ¶

type MapRender struct {
	// contains filtered or unexported fields
}

func NewMapRender ¶

func NewMapRender() *MapRender

func (*MapRender) AddMarker ¶

func (m *MapRender) AddMarker(marker *sm.Marker)

func (*MapRender) ClearMarker ¶

func (m *MapRender) ClearMarker()

func (*MapRender) Render ¶

func (m *MapRender) Render() ([]byte, error)

func (*MapRender) RenderImg ¶

func (m *MapRender) RenderImg() (*image.Image, error)

func (*MapRender) SetCache ¶

func (m *MapRender) SetCache(cache sm.TileCache)

func (*MapRender) SetCenter ¶

func (m *MapRender) SetCenter(pt *geo.Point)

func (*MapRender) SetSize ¶

func (m *MapRender) SetSize(width, height int)

func (*MapRender) SetTileProvider ¶

func (m *MapRender) SetTileProvider(tileProvider *sm.TileProvider)

func (*MapRender) SetZoom ¶

func (m *MapRender) SetZoom(zoom int)

type Mode ¶

type Mode string

Mode ...

type NoopLogger ¶

type NoopLogger struct{}

func NewNoopLogger ¶

func NewNoopLogger() *NoopLogger

func (*NoopLogger) Close ¶

func (l *NoopLogger) Close()

func (*NoopLogger) Printf ¶

func (n *NoopLogger) Printf(format string, v ...interface{})

type Point ¶

type Point struct {
	Lat float32 `json:"lat"`
	Lon float32 `json:"lon"`
}

Point is GPS point

func (*Point) String ¶

func (p *Point) String() string

type Streamer ¶

type Streamer struct {
	// contains filtered or unexported fields
}

Streamer ...

func NewStreamer ¶

func NewStreamer(url string) (*Streamer, error)

NewStream ...

func (*Streamer) Push ¶

func (s *Streamer) Push(img []byte)

SetImage ...

Source Files ¶

View all Source files

Directories ¶

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