Only the Python Beta is currently available.  Components include: 7 motors, 6 Hit Detectors, 7 infrared sensors, 1 visual sensor, 1 microphone, 1 speaker, 2 Gyroscopes, and 21 LED lights. All of them can be operated and/or configured.  PWM (Pulse Wide Modulation) is a technology that is generally used to control actuators such as servos, LEDs, and drivers. For the use of PWM, please refer to the programming guide at product website page.