React Native BLE Plx

react-native-ble-plx is a comprehensive React Native library providing a low-level API for interacting with Bluetooth Low Energy (BLE) devices on both iOS and Android platforms. The current stable version is 3.5.1, with recent releases indicating an active development and maintenance cadence addressing bugs and improvements. It supports core BLE functionalities such as observing the Bluetooth adapter state, scanning for devices, connecting to peripherals, discovering services and characteristics, reading/writing characteristic values, observing notifications/indications, reading RSSI, and negotiating MTU. A key differentiator is its inclusion of an Expo config plugin for easier integration into managed Expo workflows (requiring prebuilding). The library explicitly does not support Bluetooth Classic, inter-phone BLE communication (peripheral mode), device bonding, or beacon technologies. It is built to provide robust control over BLE interactions in React Native applications.