Skip to main content

Motors

Motor blocks are used to start, stop, position, and tune motors connected to hub ports.

Core motor command blocks​

Start motor​

block_hubs_all_motors_port_start_motor.svg

Starts selected motor.

  • Direction options: clockwise / counterclockwise

Stop motor​

block_hubs_all_motors_port_stop_motor.svg

Stops selected motor.

Run for​

block_hubs_all_motors_port_run_for.svg

Runs selected motor for specified time/angle/rotation based on block settings.

  • Direction options: clockwise / counterclockwise
  • Unit options: rotations, degrees, seconds
  • Note: this feature requires a motor on the selected port that supports encoder-based control.

Start motor at speed​

block_hubs_all_motors_port_start_motor_at_speed.svg

Starts motor with explicit speed value.

Run for at speed​

block_hubs_all_motors_port_run_for_at_speed.svg

Runs motor for a target duration/amount with explicit speed.

  • Unit options: rotations, degrees, seconds
  • Note: this feature requires a motor on the selected port that supports encoder-based control.

Set motor speed​

block_hubs_all_motors_port_set_motor_speed.svg

Sets speed used by related motor run blocks.

Position and movement blocks​

Go to position​

block_hubs_all_motors_port_go_to_position.svg

Moves motor to target absolute position.

  • Path options: shortest path, clockwise, counterclockwise
  • Note: this feature requires a motor on the selected port that supports encoder-based control.

Go to relative position​

block_hubs_all_motors_port_go_to_relative_position.svg

Moves motor by a relative offset.

  • Note: this feature requires a motor on the selected port that supports encoder-based control.

BuWizz 3 go to relative position​

block_hubs_buwizz3_motors_port_go_to_relative_position.svg

BuWizz 3 variant of relative positioning block.

  • Note: this feature requires a motor on the selected port that supports encoder-based control.

Set relative position​

block_hubs_all_motors_port_set_relative_position.svg

Sets motor relative-position reference.

  • Note: this feature requires a motor on the selected port that supports encoder-based control.

Calibrate steering rack​

block_hubs_all_motors_port_calibrate_steering_rack.svg

Calibrates steering rack neutral/reference position.

  • Requirement: the motor connected to the selected port must support absolute/relative angle tracking (internal encoder).
  • Mechanical requirement: steering axis movement must be physically limited to a valid range (for example with steering rack/gearing end limits).
  • How it works: the block sweeps and measures the available steering rotation range, then computes calibration data used for steering configuration.
  • Output behavior: block arguments write results into variables passed to the block (function-like pass-by-reference behavior). Those variables are mutated by the block and should be used to read calibration results.

Motor tuning and safety blocks​

Set motor behavior at stop​

block_hubs_all_motors_port_set_motor_to_at_stop.svg

Sets motor stop mode (for example brake/hold/float based on available options).

  • Stop mode options: brake, hold position, coast
  • Note: this feature requires a motor on the selected port that supports encoder-based control.

Set stall detection​

block_hubs_all_motors_port_set_motors_stall_detection.svg

Enables or disables stall detection.

  • Note: available only for the MINDSTORMS Robot Inventor hub.

Set acceleration​

block_hubs_all_motors_port_set_acceleration.svg

Sets motor acceleration profile/rate.

  • Profile options: default, fast, balanced, smooth, slow, very slow
  • Note: this feature requires a motor on the selected port that supports encoder-based control.

Set deceleration​

block_hubs_all_motors_port_set_deceleration.svg

Sets motor deceleration profile/rate.

  • Profile options: default, fast, balanced, smooth, slow, very slow
  • Note: this feature requires a motor on the selected port that supports encoder-based control.

Motor reporter blocks​

Position​

block_hubs_all_motors_port_position.svg

Returns current motor position.

Relative position​

block_hubs_all_motors_port_relative_position.svg

Returns current relative position value.

Speed​

block_hubs_all_motors_port_speed.svg

Returns current motor speed.

Power​

block_hubs_all_motors_port_power.svg

Returns current motor power value.

  • Note: available only for the MINDSTORMS Robot Inventor hub.

Technic Move motor blocks​

Start motors at speed​

block_hubs_technicmove_motors_start_motors_at_speed.svg

Starts Technic Move drive motors at selected speed.

Stop motors​

block_hubs_technicmove_motors_stop_motors.svg

Stops Technic Move drive motors.

Brake​

block_hubs_technicmove_motors_brake.svg

Applies brake behavior to Technic Move motors.

  • Brake options: off, on

Set steering rack to​

block_hubs_technicmove_motors_set_steering_rack_to.svg

Sets steering rack target position/value.

Calibrate steering rack​

block_hubs_technicmove_motors_calibrate_steering_rack.svg

Calibrates the Technic Move steering rack using the hub's internal calibration algorithm and automatic steering range detection.

  • Note: the motor axis must be mechanically limited (for example, by a steering rack mechanism).