Difference between revisions of "Body Sensation"

Overview

Use Motor module and Motion module to make an emoticon whose motor is controlled to spin through leaning the platform left and right.

Module List

Module

Other Equipment

• USB cable*1
• Lego or other fixation structures

Module Setup

Setup

• Assemble modules and sensors together:
  • Connect two motors to Motor module;
  • Stick the red core, yellow motion module and green motor module to the yellow battery base;
  • Plug one end of USB cable into the battery base and connect the other end to computer.

Programming

Required Program Blocks

• “Motion DMP solution” program block
• “Get motion degree” program block
• “Motor begin” program block
• “Motor choose” program block
• “Variable declaration” and “assignment” program blocks
• “Map” program block
• “Constrain” program block
• “Println” program block

Start to Program

Motor begin Motion DMP solution Variable X is for storing the pitch motion degree Constrain X to -20~20 Map X from -20~20 to -255~255 Send X to the serial monitor The speed of the two motor is X.

Test the result
Before power on, confirm the motion module is level, and the x axis of motion sensor leans downward, and the two eyes turn left (anticlockwise); the x axis of the motion sensor leans upward, and the two eyes turn right (clockwise).

Q: Now the two eyes turn to the same direction. How to make them turn to different directions?
A: -255~0 represent rotating back, and 255~0 represent rotating forth, just change x into –x can make it rotate reversely.

Use variable Y to storing the roll motion degree. Constrain Y to -20~20. Map Y from -20~20 to -255~255. The speed of motor 1A,1B is X-Y. The speed of motor 2A,2B is X+Y.

Technical Specification

• For more about Motion module, please refer to: motion module
• For more about Motor module, please refer to motor module

Relative Cases

• Revolution Indicator
• Body Sensation

FAQ