bme280

This is a simple driver for the Bosch Sensortec bme280 environment sensor. The datasheet can be found here: https://ae-bst.resource.bosch.com/media/_tech/media/datasheets/BST-BME280_DS001-11.pdf

ATM the driver is expecting the i2c-bus. SPI-Bus could be added in the future.

Usage

For Normal mode and default values you can use like that:

package main

import "log"
import "github.com/davecheney/i2c"
import "github.com/quinte17/bme280" 

func main() {
	dev, err := i2c.New(0x77, 1)
	if err != nil {
		log.Print(err)
	}
	bme, err := bme280.NewI2CDriver(dev)
	if err != nil {
		log.Print(err)
	}
	log.Print(bme.Readenv())
}

If you want to use the forced mode use like that:

package main

import "log"
import "github.com/davecheney/i2c"
import "github.com/quinte17/bme280" 

func main() {
	dev, err := i2c.New(0x77, 1)
	if err != nil {
		log.Print(err)
	}
	bme, err := bme280.NewI2CDriver(dev, bme280.OptHumOversampling(1), bme280.OptTempOversampling(1), bme280.OptPressOversampling(1))
	if err != nil {
		log.Print(err)
	}
	bme.Option(bme280.OptMode("forced")) // start one measurement
	bme.WaitForMeasurement()             // sleep long enough so the measurement will be finished.
	log.Print(bme.Readenv())
}