| package service |
| |
| import "github.com/paypal/gatt" |
| |
| 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 |
| } |
