The following lists the hardware components that are required for building this project:
- Webcam
- Dynamixel AX-12A servo with mounting bracket
- USB-to-Dynamixel adapter
- Extra 3-pin cables for AX-12 servos
- Power adapter
- 6-port AX/MX power hub
- USB extension cable
If you are thinking that the total cost is not affordable, then there are cheap alternatives to do this project too. The main heart of this project is the Dynamixel servo. We can replace this servo with RC servos, which only cost around $10, and an Arduino board costing around $20 can be used to control the servo too. The ROS and Arduino interfacing will be discussed in the upcoming chapters, so you can think about porting the face tracker project using an Arduino and RC servo.
Okay, let's look at the software prerequisites of the project. The prerequisites include the ROS framework...
