bme20_go

A Native Golang driver for the Adafruit BME280 Breakout board.

Usage

Create a BME Object:

bme := BME280{}

Initialize it with the proper device (for the Raspberry Pi 3, this works):

dev := "/dev/i2c-1"
r := bme.bme280Init(dev)

Any return other than -256 is success.

To read values:

readings := bme.bme280ReadValues()

readings will be a 3-value array of ints. Temperature, Pressure, Humidity, in that order. Temperature is the Temperature in C * 100 so to get the actual temperature:

f := float64(float64(readings[0]) / 100.00)

Pressure is currently not properly implemented, and should not be iused. Humidity is returned as realtive humidity * 1024, so to get the humidity value:

f = float64(rets[2]) / 1024.00

It's a good idea to call

defer bme.Dev.Close()

after the call to init so that the device will be closed after you're done with it.

Error Handling

There is none at this point. You have to handle them. but if the return array has a -256 for a value in a spot, it's likely that an error occured.