| package lib |
| |
| import "github.com/go-ble/ble" |
| |
| // NewBatteryService ... |
| func NewBatteryService() *ble.Service { |
| lv := byte(100) |
| s := ble.NewService(ble.UUID16(0x180F)) |
| c := s.NewCharacteristic(ble.UUID16(0x2A19)) |
| c.HandleRead( |
| ble.ReadHandlerFunc(func(req ble.Request, rsp ble.ResponseWriter) { |
| rsp.Write([]byte{lv}) |
| lv-- |
| })) |
| |
| // Characteristic User Description |
| c.NewDescriptor(ble.UUID16(0x2901)).SetValue([]byte("Battery level between 0 and 100 percent")) |
| |
| // Characteristic Presentation Format |
| c.NewDescriptor(ble.UUID16(0x2904)).SetValue([]byte{4, 1, 39, 173, 1, 0, 0}) |
| |
| return s |
| } |
