Inside Bluetooth Low Energy 🔥 Complete

Handles pairing and encryption to keep the data stream private. 3. The Application (The "User Interface") BLE with ESP32 tutorial part 1: the Server

Handles the "raw bits" and frequency hopping across 40 channels to avoid interference. Inside bluetooth low energy

This is the hardware layer responsible for actually sending and receiving signals over the 2.4 GHz band. Handles pairing and encryption to keep the data

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). This is the hardware layer responsible for actually

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")

Defines the "who's who." It determines if a device is a Central (like your phone) or a Peripheral (like a heart rate sensor).