1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
|
// +build
package main
import (
"fmt"
"log"
"github.com/paypal/gatt"
"github.com/paypal/gatt/examples/option"
"github.com/paypal/gatt/examples/service"
)
func main() {
d, err := gatt.NewDevice(option.DefaultServerOptions...)
if err != nil {
log.Fatalf("Failed to open device, err: %s", err)
}
// Register optional handlers.
d.Handle(
gatt.CentralConnected(func(c gatt.Central) { fmt.Println("Connect: ", c.ID()) }),
gatt.CentralDisconnected(func(c gatt.Central) { fmt.Println("Disconnect: ", c.ID()) }),
)
// A mandatory handler for monitoring device state.
onStateChanged := func(d gatt.Device, s gatt.State) {
fmt.Printf("State: %s\n", s)
switch s {
case gatt.StatePoweredOn:
// Setup GAP and GATT services for Linux implementation.
// OS X doesn't export the access of these services.
d.AddService(service.NewGapService("Gopher")) // no effect on OS X
d.AddService(service.NewGattService()) // no effect on OS X
// A simple count service for demo.
s1 := service.NewCountService()
d.AddService(s1)
// A fake battery service for demo.
s2 := service.NewBatteryService()
d.AddService(s2)
// Advertise device name and service's UUIDs.
d.AdvertiseNameAndServices("Gopher", []gatt.UUID{s1.UUID(), s2.UUID()})
// Advertise as an OpenBeacon iBeacon
d.AdvertiseIBeacon(gatt.MustParseUUID("AA6062F098CA42118EC4193EB73CCEB6"), 1, 2, -59)
default:
}
}
d.Init(onStateChanged)
select {}
}
|
