This is the most important part for developers. It defines how data is exchanged using a hierarchy of Services and Characteristics (e.g., a "Battery Service" with a "Level" characteristic).
welcome everybody so I've gotten very many requests uh to make a video on Bluetooth. low energy BLE in combination with the ESP32. YouTube·MoThunderz Inside bluetooth low energy
Handles pairing and encryption to keep the data stream private. 3. The Application (The "User Interface") BLE with ESP32 tutorial part 1: the Server This is the most important part for developers
The "brain" of the radio. It uses a state machine to manage whether the device is Advertising (broadcasting its presence), Scanning (looking for others), or in a Connection state exchanging data. 2. The Host (The "Brain") Scanning (looking for others)