For more information, see Using the Color Sensor in the EV3 Software Help. EV3 Sensors Color Mode Reflected Light Intensity Mode Ambient Light Intensity Mode Color Sensor
p. 14 LEGO.com/mindstorms 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 The LEGO Group. 041329. EV3 TECHNOLOGY Touch Sensor The Touch Sensor is an analog 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 it 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
70cm / 27inch 200cm / 79inch p. 15 LEGO.com/mindstorms 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 The LEGO Group. 041329. EV3 TECHNOLOGY Infrared Sensor and Remote Infrared Beacon The Infrared Sensor is a digital sensor that can detect infrared light reflected from solid objects. It can also detect infrared light signals sent from the Remote Infrared Beacon. The Infrared Sensor can be used in three different modes: Proximity Mode, Beacon Mode, and Remote Mode. Proximity Mode In Proximity Mode, the Infrared Sensor uses the light waves reflected back from an object to estimate the distance between the sensor and that object. It reports the distance using values between 0 (very close) to 100 (far away), not as a specific number of centimeters or inches. The sensor can detect objects up to 70 cm away, depending on the size and shape of the object. For more information, see Using the Infrared Sensor Proximity Mode in the EV3 Software Help. Beacon Mode Choose one of the Remote Infrared Beacon’s four channels from the red Channel Selector. The Infrared Sensor will detect a beacon signal matching the channel that you specify in your program up to a distance of approximately 200 cm in the direction it is facing. Once detected, the sensor can estimate the general direction (heading) of and the distance (proximity) to the beacon. With this information, you can program a robot to play hide-and-seek, using the Remote Infrared Beacon as the target of its search. The heading will be a value of between -25 and 25, with 0 indicating that the beacon is directly in front of the Infrared Sensor. The proximity will be values between 0 and 100.
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- Fall '17