Пример #1
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
}
Пример #2
0
package service

import (
	"log"

	"github.com/plumlife/gatt"
)

var (
	attrGATTUUID           = gatt.UUID16(0x1801)
	attrServiceChangedUUID = gatt.UUID16(0x2A05)
)

// 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 #3
0
package service

import "github.com/plumlife/gatt"

var (
	attrGAPUUID = gatt.UUID16(0x1800)

	attrDeviceNameUUID        = gatt.UUID16(0x2A00)
	attrAppearanceUUID        = gatt.UUID16(0x2A01)
	attrPeripheralPrivacyUUID = gatt.UUID16(0x2A02)
	attrReconnectionAddrUUID  = gatt.UUID16(0x2A03)
	attrPeferredParamsUUID    = gatt.UUID16(0x2A04)
)

// https://developer.bluetooth.org/gatt/characteristics/Pages/CharacteristicViewer.aspx?u=org.bluetooth.characteristic.gap.appearance.xml
var gapCharAppearanceGenericComputer = []byte{0x00, 0x80}

// 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
}