2021-10-30 10:34:00 -05:00

117 lines
2.2 KiB
Go

package main
import (
"log"
"time"
"gitea.smoothnet.org/nhyatt/go-temper/internal/temper"
)
func main() {
/*
temp, err := GetTemperature()
if err == nil {
log.Printf(
"Temperature: %.2f°K %.2f°F %.2f°C\n",
temp.Temperature+273.15,
9.0/5.0*temp.Temperature+32,
temp.Temperature,
)
} else {
log.Fatalf("Failed: %s", err)
}
*/
dev, err := temper.GetDevice()
if err != nil {
log.Fatalf("[FATAL] Unable to get TEMPer Device ID: %v\n", err)
}
defer dev.Device.Close()
for {
temp, err := dev.GetTemperature()
if err != nil {
log.Printf("[WARNING] Unable to get temperature from device: %v\n", err)
} else {
log.Printf(
"Temperature: %.2f°K %.2f°F %.2f°C\n",
temp+273.15,
9.0/5.0*temp+32,
temp,
)
}
time.Sleep(time.Duration(5 * time.Second))
}
}
/*
type DeviceTemperature struct {
Device *gousb.Device
Temperature float64
}
func GetTemperature() (DeviceTemperature, error) {
ctx := gousb.NewContext()
defer ctx.Close()
vid, pid := gousb.ID(0x0c45), gousb.ID(0x7401)
devs, err := ctx.OpenDevices(func(desc *gousb.DeviceDesc) bool {
return desc.Vendor == vid && desc.Product == pid
})
if err != nil {
return DeviceTemperature{}, err
}
if len(devs) == 0 {
return DeviceTemperature{}, fmt.Errorf("no devices found matching VID %s and PID %s", vid, pid)
}
// Pick the first device found.
dev := devs[0]
devs[0].SetAutoDetach(true)
for _, d := range devs {
defer d.Close()
}
temp, err := getDeviceTemperature(dev)
return temp, err
}
func getDeviceTemperature(dev *gousb.Device) (DeviceTemperature, error) {
cfg, err := dev.Config(1)
if err != nil {
return DeviceTemperature{}, err
}
defer cfg.Close()
intf, err := cfg.Interface(1, 0)
if err != nil {
return DeviceTemperature{}, err
}
defer intf.Close()
epIn, err := intf.InEndpoint(0x82)
if err != nil {
return DeviceTemperature{}, err
}
_, err = dev.Control(
0x21, 0x09, 0x0200, 0x01, []byte{0x01, 0x80, 0x33, 0x01, 0x00, 0x00, 0x00, 0x00},
)
if err != nil {
return DeviceTemperature{}, err
}
buf := make([]byte, 8)
if _, err = epIn.Read(buf); err != nil {
return DeviceTemperature{}, err
}
return DeviceTemperature{Device: dev, Temperature: float64(buf[2]) + float64(buf[3])/256}, nil
}
*/