Пример #1
0
func NewCountService() *gatt.Service {
	n := 0
	s := gatt.NewService(gatt.MustParseUUID("09fc95c0-c111-11e3-9904-0002a5d5c51b"))
	s.AddCharacteristic(gatt.MustParseUUID("11fac9e0-c111-11e3-9246-0002a5d5c51b")).HandleReadFunc(
		func(rsp gatt.ResponseWriter, req *gatt.ReadRequest) {
			fmt.Fprintf(rsp, "count: %d", n)
			n++
		})

	s.AddCharacteristic(gatt.MustParseUUID("16fe0d80-c111-11e3-b8c8-0002a5d5c51b")).HandleWriteFunc(
		func(r gatt.Request, data []byte) (status byte) {
			log.Println("Wrote:", string(data))
			return gatt.StatusSuccess
		})

	s.AddCharacteristic(gatt.MustParseUUID("1c927b50-c116-11e3-8a33-0800200c9a66")).HandleNotifyFunc(
		func(r gatt.Request, n gatt.Notifier) {
			cnt := 0
			for !n.Done() {
				fmt.Fprintf(n, "Count: %d", cnt)
				cnt++
				time.Sleep(time.Second)
			}
		})

	return s
}
Пример #2
0
// NOTE: OS X provides GAP and GATT services, and they can't be customized.
// For Linux/Embedded, however, this is something we want to fully control.
func NewGapService(name string) *gatt.Service {
	s := gatt.NewService(attrGAPUUID)
	s.AddCharacteristic(attrDeviceNameUUID).SetValue([]byte(name))
	s.AddCharacteristic(attrAppearanceUUID).SetValue(gapCharAppearanceGenericComputer)
	s.AddCharacteristic(attrPeripheralPrivacyUUID).SetValue([]byte{0x00})
	s.AddCharacteristic(attrReconnectionAddrUUID).SetValue([]byte{0x00, 0x00, 0x00, 0x00, 0x00, 0x00})
	s.AddCharacteristic(attrPeferredParamsUUID).SetValue([]byte{0x06, 0x00, 0x06, 0x00, 0x00, 0x00, 0xd0, 0x07})
	return s
}
Пример #3
0
// NOTE: OS X provides GAP and GATT services, and they can't be customized.
// For Linux/Embedded, however, this is something we want to fully control.
func NewGattService() *gatt.Service {
	s := gatt.NewService(attrGATTUUID)
	s.AddCharacteristic(attrServiceChangedUUID).HandleNotifyFunc(
		func(r gatt.Request, n gatt.Notifier) {
			go func() {
				log.Printf("TODO: indicate client when the services are changed")
			}()
		})
	return s
}
Пример #4
0
func NewBatteryService() *gatt.Service {
	lv := byte(100)
	s := gatt.NewService(gatt.UUID16(0x180F))
	c := s.AddCharacteristic(gatt.UUID16(0x2A19))
	c.HandleReadFunc(
		func(rsp gatt.ResponseWriter, req *gatt.ReadRequest) {
			rsp.Write([]byte{lv})
			lv--
		})

	// FIXME: this cause connection interrupted on Mac.
	// Characteristic User Description
	// c.AddDescriptor(gatt.UUID16(0x2901)).SetValue([]byte("Battery level between 0 and 100 percent"))

	// Characteristic Presentation Format
	c.AddDescriptor(gatt.UUID16(0x2904)).SetValue([]byte{4, 1, 39, 173, 1, 0, 0})

	return s
}