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Bluetooth can be confusing to use for those unfamiliar with the process This application note details a method to utilize Bluetooth in order to communicate with a microcontroller This method includes verifying Bluetooth support and status, pairing and connecting to the microcontroller's Bluetooth module, and sending and receiving data serially Android Bluetooth Android supports Bluetooth from Android Eclair (API 5) but BLE (Bluetooth Low Energy) support only from Android 43 Jelly Bean (API 18) In Android 80, the native BluetoothAndroidbluetooth Provides classes that manage Bluetooth functionality, such as scanning for devices, connecting with devices, and managing data transfer between devices The Bluetooth API supports both "Classic Bluetooth" and Bluetooth Low Energy For more information about Classic Bluetooth, see the Bluetooth guide How To Enable Or Disable Bluetooth On Android 10 9 Pie 8 1 Oreo Bestusefultips Android 8 bluetooth problem