func main() {
log.Debug("Starting up...")
dev, err := i2c.New(0x77, 1)
if err != nil {
log.Error("Error: %v", err)
}
bme, err := bme280.NewI2CDriver(dev)
if err != nil {
log.Error("Error: %v", err)
}
for {
weather, err := bme.Readenv()
density := atmosphere.AirDensity(atmosphere.TemperatureC(weather.Temp),
atmosphere.Pressure(weather.Press*100),
atmosphere.RelativeHumidity(weather.Hum))
if err != nil {
log.Error("Error: %v", err)
} else {
log.Debug(fmt.Sprintf("Temperature (degC) %2.2f, pressure (mbar) %4.2f, humidity %2.2f, Density %2.3f kg/m3, CorrFact %1.4f",
weather.Temp, weather.Press, weather.Hum, float64(density), float64(density*0.8)))
}
<-time.After(5 * time.Second)
}
}
func main() {
i, err := i2c.New(0x27, 1)
check(err)
lcd, err := i2c.NewLcd(i, 2, 1, 0, 4, 5, 6, 7, 3)
check(err)
lcd.BacklightOn()
lcd.Clear()
for {
lcd.Home()
t := time.Now()
lcd.SetPosition(1, 0)
fmt.Fprint(lcd, t.Format("Monday Jan 2"))
lcd.SetPosition(2, 0)
fmt.Fprint(lcd, t.Format("15:04:05 2006"))
lcd.SetPosition(4, 0)
fmt.Fprint(lcd, "i2c, VGA, and Go")
time.Sleep(333 * time.Millisecond)
}
}
func main() {
dev, err := i2c.New(0x27, 1) // vga port
check(err)
lcd, err := i2c.NewLcd(dev, 2, 1, 0, 4, 5, 6, 7, 3)
check(err)
lcd.BacklightOn()
lcd.Clear()
w := lcdWriter{lcd: lcd}
fill(w.buf[:], 0x20)
cmd := exec.Command(flags.Args()[0], flags.Args()[1:]...)
cmd.Stdin = os.Stdin
cmd.Stdout = &w
if *stderr {
cmd.Stderr = &w
}
cmd.Run()
}