Ejemplo n.º 1
0
func explore(cln ble.Client, p *ble.Profile) error {
	for _, s := range p.Services {
		fmt.Printf("    Service: %s %s, Handle (0x%02X)\n", s.UUID, ble.Name(s.UUID), s.Handle)

		for _, c := range s.Characteristics {
			fmt.Printf("      Characteristic: %s %s, Property: 0x%02X (%s), Handle(0x%02X), VHandle(0x%02X)\n",
				c.UUID, ble.Name(c.UUID), c.Property, propString(c.Property), c.Handle, c.ValueHandle)
			if (c.Property & ble.CharRead) != 0 {
				b, err := cln.ReadCharacteristic(c)
				if err != nil {
					fmt.Printf("Failed to read characteristic: %s\n", err)
					continue
				}
				fmt.Printf("        Value         %x | %q\n", b, b)
			}

			for _, d := range c.Descriptors {
				fmt.Printf("        Descriptor: %s %s, Handle(0x%02x)\n", d.UUID, ble.Name(d.UUID), d.Handle)
				b, err := cln.ReadDescriptor(d)
				if err != nil {
					fmt.Printf("Failed to read descriptor: %s\n", err)
					continue
				}
				fmt.Printf("        Value         %x | %q\n", b, b)
			}
		}
		fmt.Printf("\n")
	}
	return nil
}
Ejemplo n.º 2
0
func cmdConnect(c *cli.Context) error {
	curr.client = nil

	var cln ble.Client
	var err error

	ctx := ble.WithSigHandler(context.WithTimeout(context.Background(), c.Duration("tmo")))
	if c.String("addr") != "" {
		curr.addr = ble.NewAddr(c.String("addr"))
		fmt.Printf("Dialing to specified address: %s\n", curr.addr)
		cln, err = ble.Dial(ctx, curr.addr)
	} else if filter(c) != nil {
		fmt.Printf("Scanning with filter...\n")
		if cln, err = ble.Connect(ctx, filter(c)); err == nil {
			curr.addr = cln.Address()
			fmt.Printf("Connected to %s\n", curr.addr)

		}
	} else if curr.addr != nil {
		fmt.Printf("Dialing to implicit address: %s\n", curr.addr)
		cln, err = ble.Dial(ctx, curr.addr)
	} else {
		return fmt.Errorf("no filter specified, and cached peripheral address")
	}
	if err == nil {
		curr.client = cln
		curr.clients[cln.Address().String()] = cln
	}
	go func() {
		<-cln.Disconnected()
		delete(curr.clients, cln.Address().String())
		curr.client = nil
		fmt.Printf("\n%s disconnected\n", cln.Address().String())
	}()
	return err
}
Ejemplo n.º 3
0
func explore(cln ble.Client, p *ble.Profile) error {
	for _, s := range p.Services {
		fmt.Printf("    Service: %s %s, Handle (0x%02X)\n", s.UUID, ble.Name(s.UUID), s.Handle)

		for _, c := range s.Characteristics {
			fmt.Printf("      Characteristic: %s %s, Property: 0x%02X (%s), Handle(0x%02X), VHandle(0x%02X)\n",
				c.UUID, ble.Name(c.UUID), c.Property, propString(c.Property), c.Handle, c.ValueHandle)
			if (c.Property & ble.CharRead) != 0 {
				b, err := cln.ReadCharacteristic(c)
				if err != nil {
					fmt.Printf("Failed to read characteristic: %s\n", err)
					continue
				}
				fmt.Printf("        Value         %x | %q\n", b, b)
			}

			for _, d := range c.Descriptors {
				fmt.Printf("        Descriptor: %s %s, Handle(0x%02x)\n", d.UUID, ble.Name(d.UUID), d.Handle)
				b, err := cln.ReadDescriptor(d)
				if err != nil {
					fmt.Printf("Failed to read descriptor: %s\n", err)
					continue
				}
				fmt.Printf("        Value         %x | %q\n", b, b)
			}

			if *sub != 0 {
				// Don't bother to subscribe the Service Changed characteristics.
				if c.UUID.Equal(ble.ServiceChangedUUID) {
					continue
				}

				// Don't touch the Apple-specific Service/Characteristic.
				// Service: D0611E78BBB44591A5F8487910AE4366
				// Characteristic: 8667556C9A374C9184ED54EE27D90049, Property: 0x18 (WN),
				//   Descriptor: 2902, Client Characteristic Configuration
				//   Value         0000 | "\x00\x00"
				if c.UUID.Equal(ble.MustParse("8667556C9A374C9184ED54EE27D90049")) {
					continue
				}

				if (c.Property & ble.CharNotify) != 0 {
					fmt.Printf("\n-- Subscribe to notification for %s --\n", *sub)
					h := func(req []byte) { fmt.Printf("Notified: %q [ % X ]\n", string(req), req) }
					if err := cln.Subscribe(c, false, h); err != nil {
						log.Fatalf("subscribe failed: %s", err)
					}
					time.Sleep(*sub)
					if err := cln.Unsubscribe(c, false); err != nil {
						log.Fatalf("unsubscribe failed: %s", err)
					}
					fmt.Printf("-- Unsubscribe to notification --\n")
				}
				if (c.Property & ble.CharIndicate) != 0 {
					fmt.Printf("\n-- Subscribe to indication of %s --\n", *sub)
					h := func(req []byte) { fmt.Printf("Indicated: %q [ % X ]\n", string(req), req) }
					if err := cln.Subscribe(c, true, h); err != nil {
						log.Fatalf("subscribe failed: %s", err)
					}
					time.Sleep(*sub)
					if err := cln.Unsubscribe(c, true); err != nil {
						log.Fatalf("unsubscribe failed: %s", err)
					}
					fmt.Printf("-- Unsubscribe to indication --\n")
				}
			}
		}
		fmt.Printf("\n")
	}
	return nil
}