zaquestion/go-envirophat

go-envirophat

go-envirophat is a port of the python library enviro-phat with some design liberties taken. It allows you to interact with the Enviro pHAT on the Rasberry Pi.

Leds

import "github.com/zaquestion/go-envirophat/leds"

leds.On()

Light

import "github.com/zaquestion/go-envirophat/light"

	i2c, err := light.InitI2C()
	if err != nil {
		log.Fatal(err)
	}
	defer i2c.Close()

	data, err := light.Read()
	if err != nil {
		log.Fatal(err)
	}
	buf, err := json.Marshal(data)
	if err != nil {
		log.Fatal(err)
	}
	fmt.Println(string(buf))

yields

{
  "Red": 161,
  "Green": 108,
  "Blue": 98,
  "RawLux": 1183,
  "RawRed": 749,
  "RawGreen": 505,
  "RawBlue": 456,
  "NormalRed": 0.6331360946745562,
  "NormalGreen": 0.4268808114961961,
  "NormalBlue": 0.38546069315300086
}

Weather

	i2c, err := weather.InitI2C()
	if err != nil {
		log.Fatal(err)
	}
	defer i2c.Close()

	// Read temperature in celsius degree
	t, err := weather.Temperature()
	if err != nil {
		log.Fatal(err)
	}
	log.Printf("Temperature = %v*C\n", t)
	// Read atmospheric pressure in pascal
	p, err := weather.Pressure()
	if err != nil {
		log.Fatal(err)
	}
	log.Printf("Pressure = %v Pa\n", p)
	// Read atmospheric altitude in meters above sea level, if we assume
	// that pressure at see level is equal to 101325 Pa.
	a, err := weather.Altitude()
	if err != nil {
		log.Fatal(err)
	}
	log.Printf("Altitude = %v m\n", a)

TODO:

• Remaining sensors
• Support raspberry pi 1?