I have used servo motors in several projects such as DIY Arduino & Bluetooth robot arm, web controlled servo with ESP8266, Arduino joystick interface and so on. In fact, servomotors are one of the most important components in projects that require precise positioning.
This project will show you how to control the servo motor via Bluetooth as mentioned above. However, before going into the details of Bluetooth controlled servomotors with Arduino, there are some important things to know about how servomotors work and how to control the position of the servomotors.