packet

Documentation

Overview

Package packet implements getters and setters for Davis Instruments packets.

Index

• Constants
• func Crc(p []byte) (c uint16)
• func GetBarTrend(p []byte, i uint) string
• func GetDate16(p []byte, i uint) time.Time
• func GetDateTime32(p []byte, i uint) time.Time
• func GetDateTime48(p []byte, i uint) time.Time
• func GetFloat16(p []byte, i uint) float64
• func GetFloat16_10(p []byte, i uint) float64
• func GetForecast(p []byte, i uint) string
• func GetForecastIcons(p []byte, i uint) (icons []string)
• func GetMPH16(p []byte, i uint) float64
• func GetMPH8(p []byte, i uint) int
• func GetPressure(p []byte, i uint) float64
• func GetRain(p []byte, i uint) float64
• func GetTemp8(p []byte, i uint) int
• func GetTime16(p []byte, i uint) time.Time
• func GetTransStatus(p []byte, i uint) (low []int)
• func GetUFloat8(p []byte, i uint) float64
• func GetUInt16(p []byte, i uint) int
• func GetUInt8(p []byte, i uint) int
• func GetUVIndex(p []byte, i uint) float64
• func GetVoltage(p []byte, i uint) float64
• func GetWindDir(p []byte, i uint) int
• func SetCrc(p *[]byte)
• func SetDateTime32(p *[]byte, i uint, t time.Time)
• func SetDateTime48(p *[]byte, i uint, t time.Time)
• func SetFloat16(p *[]byte, i uint, v float64)
• func SetFloat16_10(p *[]byte, i uint, v float64)
• func SetMPH16(p *[]byte, i uint, v float64)
• func SetMPH8(p *[]byte, i uint, v int)
• func SetPressure(p *[]byte, i uint, v float64)
• func SetRain(p *[]byte, i uint, v float64)
• func SetTemp8(p *[]byte, i uint, v int)
• func SetUInt16(p *[]byte, i uint, v int)
• func SetUInt8(p *[]byte, i uint, v int)
• func SetVoltage(p *[]byte, i uint, v float64)

Constants

const (
	Dash         = "-"
	FallingRapid = "Falling Rapidly"
	FallingSlow  = "Falling Slowly"
	Steady       = "Steady"
	RisingSlow   = "Rising Slowly"
	RisingRapid  = "Rising Rapidly"
)

Barometer trends.

Functions

func Crc

func Crc(p []byte) (c uint16)

Crc calculates the 16-bit CRC for the Packet. When decoding the result should be zero.

func GetBarTrend

func GetBarTrend(p []byte, i uint) string

GetBarTrend gets a barometer trend from a given packet at the specified index.

func GetDate16

func GetDate16(p []byte, i uint) time.Time

GetDate16 gets a 2-byte date (no time) value from a given packet at the specified index.

func GetDateTime32

func GetDateTime32(p []byte, i uint) time.Time

GetDateTime32 gets a 4-byte date and time value from a given packet at the specified index.

func GetDateTime48

func GetDateTime48(p []byte, i uint) time.Time

GetDateTime48 gets a 6-byte date and time value from a given packet at the specified index.

func GetFloat16

func GetFloat16(p []byte, i uint) float64

GetFloat16 gets a 2-byte signed two's complement float value from a given packet at the specified index.

func GetFloat16_10

func GetFloat16_10(p []byte, i uint) float64

GetFloat16_10 gets a 2-byte signed two's complement float value in tenths in a given packet at the specified index.

func GetForecast

func GetForecast(p []byte, i uint) string

GetForecast gets a forecast string from a given packet at the specified index.

func GetForecastIcons

func GetForecastIcons(p []byte, i uint) (icons []string)

GetForecastIcons gets a forecast icon bit map from a given packet at the specified index.

func GetMPH16

func GetMPH16(p []byte, i uint) float64

GetMPH16 gets a 2-byte MPH value from a given packet at the specified index.

func GetMPH8

func GetMPH8(p []byte, i uint) int

GetMPH8 gets a 1-byte MPH value from a given packet at the specified index.

func GetPressure

func GetPressure(p []byte, i uint) float64

GetPressure gets a pressure value from a given packet at the specified index.

func GetRain

func GetRain(p []byte, i uint) float64

GetRain gets a rain rate or accumulation value from a given packet at the specified index.

func GetTemp8

func GetTemp8(p []byte, i uint) int

GetTemp8 gets a 1-byte temperature value in a given packet at the specified index.

func GetTime16

func GetTime16(p []byte, i uint) time.Time

GetTime16 gets a 2-byte time (no date) value in a given packet at the specified index.

func GetTransStatus

func GetTransStatus(p []byte, i uint) (low []int)

GetTransStatus gets the transmitter status from the given packet at the specified index and returns a slice of the ID's/channels that have low battery indicators.

func GetUFloat8

func GetUFloat8(p []byte, i uint) float64

GetUFloat8 gets a 1-byte unsigned float value from a given packet at the specified index.

func GetUInt16

func GetUInt16(p []byte, i uint) int

GetUInt16 gets a 2-byte unsigned integer value from a given packet at the specified index.

func GetUInt8

func GetUInt8(p []byte, i uint) int

GetUInt8 gets a 1-byte unsigned integer value from a given packet at the specified index.

func GetUVIndex

func GetUVIndex(p []byte, i uint) float64

GetUVIndex gets a Ultraviolet index value from a given packet at the specified index.

func GetVoltage

func GetVoltage(p []byte, i uint) float64

GetVoltage gets a battery voltage value from a given packet at the specified index.

func GetWindDir

func GetWindDir(p []byte, i uint) int

GetWindDir gets a wind direction value in degrees from a given packet at the specified index.

func SetCrc

func SetCrc(p *[]byte)

SetCrc sets the last 2-bytes of a given packet to the proper CRC value based on the rest of content.

func SetDateTime32

func SetDateTime32(p *[]byte, i uint, t time.Time)

SetDateTime32 sets a 4-byte date and time value in a given packet at the specified index.

func SetDateTime48

func SetDateTime48(p *[]byte, i uint, t time.Time)

SetDateTime48 sets a 6-byte date and time value in a given packet at the specified index.

func SetFloat16

func SetFloat16(p *[]byte, i uint, v float64)

SetFloat16 sets a 2-byte signed two's complement float value in a given packet at the specified index.

func SetFloat16_10

func SetFloat16_10(p *[]byte, i uint, v float64)

SetFloat16_10 sets a 2-byte signed two's complement float value in tenths in a given packet at the specified index.

func SetMPH16

func SetMPH16(p *[]byte, i uint, v float64)

SetMPH16 sets a 2-byte MPH value in a given packet at the specified index.

func SetMPH8

func SetMPH8(p *[]byte, i uint, v int)

SetMPH8 sets a 1-byte MPH value in a given packet at the specified index.

func SetPressure

func SetPressure(p *[]byte, i uint, v float64)

SetPressure sets a pressure value in a given packet at the specified index.

func SetRain

func SetRain(p *[]byte, i uint, v float64)

SetRain sets a rain rate or accumulation value in a given packet at the specified index.

func SetTemp8

func SetTemp8(p *[]byte, i uint, v int)

SetTemp8 sets a 1-byte temprature value in a given packet at the specified index.

func SetUInt16

func SetUInt16(p *[]byte, i uint, v int)

SetUInt16 sets a 2-byte unsigned integer value in a given packet at the specified index.

func SetUInt8

func SetUInt8(p *[]byte, i uint, v int)

SetUInt8 sets a 1-byte unsigned integer value in a given packet at the specified index.

func SetVoltage

func SetVoltage(p *[]byte, i uint, v float64)

SetVoltage sets a battery voltage value in a given packet at the specified index.