Motor pairs and the "move_for_time()" command Pro Preview

Set up the motors

To create a motor pair, we use the command motor_pair.pair(). Here is an example:

from hub import port
import runloop
import motor_pair

async def main():
    # Pair motors on ports F and D
    motor_pair.pair(motor_pair.PAIR_1, port.F, port.D)

The inputs of the motor_pair.pair() command are:

• First input = Pair number (motor_pair.PAIR_1)
• Second input = Left motor port (port.F)
• Third input = Right motor port (port.D)

The move_for_time() command

This command allows the robot to move for a set amount of time using both motors. Here is an example:

from hub import port
import runloop
import motor_pair

async def main():
    # Pair motors on port F and D
    motor_pair.pair(motor_pair.PAIR_1, port.F, port.D)

    # Move straight at default velocity for 1 second
    await motor_pair.move_for_time(motor_pair.PAIR_1, 1000, 0)

runloop.run(main())

The inputs of the move_for_time() command are:

• First input = Pair number (motor_pair.PAIR_1)
• Second input = Duration in milliseconds
• Third input = Steering value (from -100 to 100)

The velocity parameter is optional. To change it, you must specify its name:

motor_pair.move_for_time(motor_pair.PAIR_1, 1000, 0, velocity=280)