Bluetooth Low Energy (BLE), also known as Bluetooth 5.0 LE, is a wireless communication protocol designed for short-range data transmission with minimal power consumption. In IoT monitoring, BLE-enabled data loggers can communicate with smartphones, tablets, or BLE gateways to transfer sensor data.
BLE is particularly useful for configuration, local data readout, and proximity-based applications. Many IdeaBytes data loggers use BLE for initial device setup and local diagnostics alongside their primary 4G or WiFi cloud connectivity.