This repository is the demonstration of BLE(Bluetooth Low Energy) Device.
- Filtering, scanning, linking, reading, writing, notification subscription and cancellation in a simple way.
- Supports acquiring signal strength and setting the maximum transmission unit.
- Support custom scan rules
- Support multi device connections
- Support reconnection
- Support configuration timeout for connect or operation
Bluetooth Low Energy, a subset of the 2.4 GHz Bluetooth wireless technology that specializes in low power and oftentimes infrequent data transmissions for connected devices.
A device that scans for and connects to BLE peripherals in order to perform some operation. In the context of app development, this is typically an Android device.
A device that advertises its presence and is connected to by a central in order to accomplish some task. In the context of app development, this is typically a BLE device you’re working with, like a heart rate monitor.
A collection of characteristics (data fields) that describes a feature of a device, e.g. the Device Information service can contain a characteristic representing the serial number of the device, and another characteristic representing the battery level of the device.
An entity containing meaningful data that can typically be read from or written to, e.g. the Serial Number String characteristic.
A defined attribute that describes the characteristic that it’s attached to, e.g. the Client Characteristic Configuration descriptor shows if the central is currently subscribed to a characteristic’s value change.
A means for a BLE peripheral to notify the central when a characteristic’s value changes. The central doesn't need to acknowledge that it’s received the packet.
Same as an indication, except each data packet is acknowledged by the central. This guarantees their delivery at the cost of throughput.
Universally unique identifier, 128-bit number used to identify services, characteristics and descriptors.