3 Bluetooth Low Energy (BLE) Feature
3 Bluetooth Low Energy (BLE) Feature
The traditional Bluetooth standard is convenient for constant-flow media transfer applications such as video
streaming. The Bluetooth Low Energy standard was introduced for applications requiring a lower power
consumption profile. Data is sent in bursts, followed by periods of electrical idle.
The TWN4 MultiTech 3 BLE uses the BGM121 module from Silicon Labs. The chip implements the
Physical, Link and L2CAP Layers of the BLE Protocol. The API is implemented within the firmware of
the main TWN4 microcontroller. The two chips interact via the COM2 port and GPIO7 (connected to Reset
of BGM121) of the TWN4 microcontroller, thereby making COM2 and GPIO7 unavailable for custom user
functions.
For more information regarding the Bluetooth Low Energy Standard please see document
"Designing for
Bluetooth Low Energy"
from Silicon Labs.
For the description of all the BLE-related commands available, please see the TWN4 API document.
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