
16
LEGO, the LEGO logo, MINDSTORMS and the MINDSTORMS logo are trademarks of the/sont des marques de
commerce du/son marcas registradas de LEGO Group. ©2013, 2015, 2016 The LEGO Group.
LEGOeducation.com
Touch Sensor
The Touch Sensor is an analogue sensor that can detect when the
sensor’s red button has been pressed and when it is released. That
means the Touch Sensor can be programmed to action using three
conditions – pressed, released, or bumped (both pressed and released).
Using input from the Touch Sensor, a robot can be programmed to
see the world as a blind person might, reaching a hand out and
responding when it touches something (pressed).
You might build a robot with a Touch Sensor pressed against the
surface beneath it. You might then program the robot to respond
(Stop!) when your robot is about to drive off the edge of a table
(when the sensor is released).
A fighting robot might be programmed to keep pushing forward
against its challenger until the challenger retreats. That pair of
actions – pressed, then released – would constitute bumped.
For more information, see Using the Touch Sensor in the EV3
Software Help.
EV3 Sensors
Touch Sensor
Released
Bumped
Pressed
EV3 TECHNOLOGY