How to rotate a motor 90 degrees without calculating speed and time ratios Pro Preview

This command has three required input parameters:

1. Motor port – you can enter the motor port directly or use the port keyword to select the motor by its letter.

2. Degrees – the number of degrees the motor should rotate.

3. Speed – the speed at which the command should be executed.

   • Small motor: -660 to 660

   • Medium motor: -1110 to 1110

   • Large motor: -1050 to 1050

Here is an example of how to program the robot to rotate a single motor by 90 degrees at a speed of 360:

from hub import port
import motor
import runloop

async def main():
    # Move for 90 degrees at a speed of 360
    motor.run_for_degrees(port.A, 90, 360)

runloop.run(main())

If we want the motor to rotate in reverse, we can use one of two methods:

1. Set the speed to a negative value:

   motor.run_for_degrees(port.A, 90, -360)

2. Set the angle to a negative value:

   motor.run_for_degrees(port.A, -90, 360)

If you set both the angle and the speed to negative values, the motor will reverse direction twice, which means it will rotate forward again:

motor.run_for_degrees(port.A, -90, -360)