The driveAngle Block

Usually, we use our blocks driveDistance() or driveTime() to have our Linkbot drive around. We are able to use multiple methods of moving the Linkbot, and we are able to specify the exact degree we would like to rotate the wheels using the driveAngle() block.

 The driveAngle block specifies the amount of angle (in degrees) for the wheels to turn, which then drives the robot:

Like with the driveDistance block, you can enter any integer value for the angle value in the driveAngle block. If the angle is positive, the wheels turn counter-clockwise, which drives the robot forwards. If the angle is negative, the wheels turn clockwise, which drives the robot backwards. 

Uses for the driveAngle Block

Generally, we use the driveDistance() block to move the robot forward. But, the driveDistance() block is difficult to use for other applications, such as when we build a robot that lifts objects up, closes a gripper, or when we need to rotate a motor a specific amount.

A common use is when we are using the 4" Wheels instead o fthe usual blue 3.5" Wheels. A good experiment to do with the class involves having students figure out how far the robot will move when each wheel is rotated 180 degrees. Students need to solve for the wheel circumferences and then can test their results.