Difference between revisions of "Itty Bitty Buggy: Car Movement Tutorial (mDesigner)"

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(→‎Motors)
(→‎Block: Set Speed)
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:*'''Speed''' - rate to set the selected '''Motor'''. A value between -255 and 255. Negative values will spin the motor in reverse.
 
:*'''Speed''' - rate to set the selected '''Motor'''. A value between -255 and 255. Negative values will spin the motor in reverse.
−
**0 being off
+
::*0 being off
−
**127 being half speed forward.
+
::*127 being half speed forward.
−
**255 being full speed forward
+
::*255 being full speed forward
−
**-255 being full speed backward
+
::*-255 being full speed backward
−
*-127 being half speed backward
+
::*-127 being half speed backward
 
|}
 
|}
  

Revision as of 23:28, 29 October 2018

Car

Car blocks are blocks which controls both of the motors at the same time in order to move the forward / backwards (Car - Move block) or turn left / right (Car - Turn block). These are convenience functions designed to be "general purpose". Motors can be controlled directly with the Motor blocks. See section #Motors.

Block: Move

The Car's movement direction can be controlled using the Car - Move block.

Function: This blocks controls the Buggy Base to move either forward or backwards at a certain speed for a specified duration.

IBB mDesigner Car Block Direction Speed Duration.png
  • Direction - direction to move. Either forward or backward.
  • Speed - rate of the motors when moving. A value between 0 and 255. 0 being off, 255 being full speed, and 127 being half speed.
  • Duration - amount of time (in seconds) to move.

Block: Turn

The Car can be set to turn using the Car - Turn block.

Function: This blocks controls the Buggy Base to turn either right or left at a certain speed for a specified duration.

IBB mDesigner Car Block Turn Speed Duration.png
  • Turn Direction - direction to turn. Either left or right.
  • Speed - rate of the motors when turning. A value between 0 and 255. 0 being off, 255 being full speed, and 127 being half speed.

Motors

Motor blocks are blocks which controls the motors on Buggy Base directly. This gives the user the ability to fine tune the behavior of the motors. The motors are referenced as Motor "A" or "B" depending on the side it resides. These blocks can set the movement direction of the motors (Motor - Set Speed block) or brake / stop the motors (Motor - Stop block).

Block: Set Speed

The motors speed and direction can be controlled with the Motor - Set Speed block.

Function: This block sets the speed of the selected motor.

IBB mDesigner Motor Block Set Speed.png
  • Motor - select motor (either A, B, or AB (both)).
  • Speed - rate to set the selected Motor. A value between -255 and 255. Negative values will spin the motor in reverse.
  • 0 being off
  • 127 being half speed forward.
  • 255 being full speed forward
  • -255 being full speed backward
  • -127 being half speed backward

Block: Stop

The motors can be stopped with the Motor - Stop block.

Function: This block stops the selected motor.

IBB mDesigner Motor Block Stop.png
  • Motor - select motor to stop (either A, B, or AB (both)).
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