What range of values can the joysticks provide in VEX Robotics?

In VEX Robotics, the joysticks provide a range of values from -127 to +127. This range allows for a full representation of movements in both negative and positive directions, where the center position is represented by 0. The -127 indicates full backward movement, while +127 represents full forward movement, providing a sufficient range for precise control over robot movements.

This range is particularly useful because it allows for fine adjustments in joystick positions, leading to smoother and more responsive control of the robot. The negative values correspond to one direction of movement or rotation, while the positive values represent the opposite direction. This kind of two-directional input is essential for applications such as driving the robot or controlling arms and mechanisms.

Other ranges mentioned in the options do not fit the specifications for VEX joysticks. For instance, a range of -100 to +100, though close, is not standard; the range of 0 to 255 does not allow for reverse movement, which is essential in robotics. Finally, -255 to +255 exceeds the designed capability of the joystick and could lead to incorrect readings and unpredictable robot behaviors. Hence, the selected range of -127 to +127 is the correct answer for representing joystick values in VEX Robotics.