bmp085

package module

v0.0.0-...-18d1e3a Latest Latest Go to latest Published: Jun 19, 2014 License: Apache-2.0 Imports: 4 Imported by: 0

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Repository

github.com/mschoch/go-bmp085

Links

Open Source Insights

README ¶

go-bmp085

A go library to interact with the BMP085 Temperature/Pressure Sensor.

NOTE: This has only been tested on a Raspberry Pi.

Usage

import ("github.com/mschoch/go-bmp085")

// choose which i2c bus to use
var i2cbus byte = 1

// create the device
d := new(bmp085.Device)

// initialize it
_ := d.Init(i2cbus)

// read the temperature
temp, _ := d.ReadTemp()

Examples

There is one example app showing how to read the temperature. (you may need to be root to read the i2c bus)

$ sudo ./read_temperature 
Temp is 20.900000C

Documentation ¶

Constants ¶

View Source

const (
	ULTRALOWPOWER byte = iota
	STANDARD
	HIGHRES
	ULTRAHIGHRES
)

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const CAL_AC1 byte = 0xAA

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const CAL_AC2 byte = 0xAC

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const CAL_AC3 byte = 0xAE

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const CAL_AC4 byte = 0xB0

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const CAL_AC5 byte = 0xB2

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const CAL_AC6 byte = 0xB4

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const CAL_B1 byte = 0xB6

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const CAL_B2 byte = 0xB8

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const CAL_MB byte = 0xBA

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const CAL_MC byte = 0xBC

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const CAL_MD byte = 0xBE

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const CONTROL = 0xF4

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const I2C_ADDR = 0x77

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const PRESSURE_DATA = 0xF6

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const READ_PRESSURE_CMD = 0x34

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const READ_TEMP_CMD = 0x2E

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const TEMP_DATA = 0xF6

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const TO_INCHES_MERCURY = 3386.389

Variables ¶

This section is empty.

Functions ¶

This section is empty.

Types ¶

type Device ¶

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

func (*Device) Init ¶

func (d *Device) Init(busNum byte) (err error)

func (*Device) InitCustomAddr ¶

func (d *Device) InitCustomAddr(addr, busNum byte) (err error)

func (*Device) ReadPressure ¶

func (d *Device) ReadPressure() (p int32, err error)

func (*Device) ReadTemp ¶

func (d *Device) ReadTemp() (temp float32, err error)

func (*Device) SetMode ¶

func (d *Device) SetMode(mode byte)

Source Files ¶

View all Source files

bmp085.go

Directories ¶

Path	Synopsis
post_to_nowd
read_pressure
read_temperature

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