This HiTec servo is a multi-turn servo winch. Depending on the RC system used, you can get up to 4 full 360 degree revolutions of high torque out of this servo.
For a general servo overview manual follow this link.
These are HiTec HS-422 Servos for use in any application.
The Micro Maestro is the smallest of Pololu’s second-generation USB servo controllers. The Maestros are available in four sizes and can be purchased fully assembled or as partial kits.
Waterproof ultrasonic distance sensor. This sensor can be used for collision detection in your project.
This is a larger IG32 gear motor robot that utilizes three omni-wheels to vector it in any direction. By changing the speeds and directions of the motors the robot can drive in any direction without needing to turn. Customized version of TP-253-003.