Markus Pesch
fb8d4dd5eb
changes:
- Remove cli
Some cli commands are not complete tested and are deprecated.
- Daemon
- Old version has a very bad implementation of how to verify, if the
device or the sensors are in the database insert. The current
implementation can be improved but this one is betten then the old
one.
- Remove complete the cache store implementation. Use a normal array
and query the length and capacity to determine how the array cache
must be cleaned.
- Type
Remove unused types and functions
62 lines
1.3 KiB
Go
62 lines
1.3 KiB
Go
package sensor
|
|
|
|
import (
|
|
"fmt"
|
|
"sync"
|
|
|
|
"github.com/go-flucky/go-dht"
|
|
uuid "github.com/satori/go.uuid"
|
|
"github.com/volker-raschek/flucky/pkg/internal/format"
|
|
"github.com/volker-raschek/flucky/pkg/types"
|
|
)
|
|
|
|
// DHT22 is a sensor to measure humidity and temperature.
|
|
type DHT22 struct {
|
|
*types.Sensor
|
|
mutex *sync.Mutex
|
|
}
|
|
|
|
// Read measured values
|
|
func (dht22 *DHT22) Read() ([]*types.MeasuredValue, error) {
|
|
|
|
// Lock multiple access
|
|
dht22.mutex.Lock()
|
|
defer dht22.mutex.Unlock()
|
|
|
|
err := dht.HostInit()
|
|
if err != nil {
|
|
return nil, fmt.Errorf("Failed to initialize periph: %v", err)
|
|
}
|
|
|
|
dht, err := dht.NewDHT(dht22.GPIONumber, dht.Celsius, "")
|
|
if err != nil {
|
|
return nil, fmt.Errorf("Failed to initialize new DHT22 sensor: %v", err)
|
|
}
|
|
|
|
humidityValue, temperatureValue, err := dht.Read()
|
|
if err != nil {
|
|
return nil, fmt.Errorf("Read error: %v", err)
|
|
}
|
|
|
|
measuredValues := []*types.MeasuredValue{
|
|
{
|
|
ID: uuid.NewV4().String(),
|
|
Value: float64(humidityValue),
|
|
ValueType: "humidity",
|
|
FromDate: format.FormatedTime(),
|
|
TillDate: format.FormatedTime(),
|
|
SensorID: dht22.ID,
|
|
},
|
|
{
|
|
ID: uuid.NewV4().String(),
|
|
Value: float64(temperatureValue),
|
|
ValueType: "temperature",
|
|
FromDate: format.FormatedTime(),
|
|
TillDate: format.FormatedTime(),
|
|
SensorID: dht22.ID,
|
|
},
|
|
}
|
|
|
|
return measuredValues, nil
|
|
}
|