HC-05 Bluetooth Module with Arduino-MIT App Inventor

Arduino HC-05: Bluetooth Smart Home Lighting Simulation w/UNO, LEDs, mBlock 5 + Android [Tutorial]

Android Studio Tutorial: Create an app to connect the Arduino using Bluetooth and RxAndroid

Configure the Android App - Arduino Bluetooth Control

Create a Bluetooth App and control the Arduino

HC-05 Bluetooth module with arduino.

Electronic Basics #4: Arduino+Bluetooth+Android=Awesome

Arduino Bluetooth LED Controller with Android HC-05 Bluetooth Module | MIT App Inventor