The robot will continue to do this until it detects a reflected light value of less than 5 indicating that it has detected the black tape at the end of the path. Therefore, we programmed our robot to turn slightly counterclockwise whenever it is detecting a reflected light value between 5 and 18, and then turn slightly clockwise when detecting a reflected light value greater than 18. When detecting the green line, the color sensor will return a reflected light value between 5 and 18, and when detecting the white parking lot, the reflecting light will be greater than 18.Decisions: the robot is able to follow the line by differentiating whether it is detecting the green tape (path of the robot) or the white paper (the ground of the parking lot).Uses the color sensor (configured in the first function) to detect the amount of reflected light when following the green line.Touch sensor: must be configured so the robot knows when it is parked, as in, once the touch sensor is activated (returns 1 or true), it means the shovel has made contact with the curb at the end of a parking spot, and so the robot has successfully parked itself.
#ROBOTC ULTRASONIC SENSOR FREE#
![robotc ultrasonic sensor robotc ultrasonic sensor](http://botbench.com/blog/wp-content/uploads/2012/03/image3.png)
When people are getting in or out of their car, they can slip and fall, resulting in significant injury, making this a substantial safety concern.
![robotc ultrasonic sensor robotc ultrasonic sensor](https://slidetodoc.com/presentation_image_h/ea11ba139b7fa4eb807a23bb68b167a7/image-16.jpg)
More technical information about the sensors and brick will be posted at a later date.LEGO EV3 Color Detecting and Self-Parking Robotĭuring the winter, the roads can quickly become slippery due to snow and ice. In gyro mode, it can handle a maximum of 440 degrees per secondĬan act as a receiver for the IR remote control/beaconĬan be used to control your robot with buttons a little like the small Power Functions remote control Please note that some of these sensors are for the Education market only and do not come standard with the retail set.ħ colours and no colour detected (that sort of makes 8)Ĭan measure distance between 3 and 250 cm.ĭistance is return in 0.1 cm resolution but accuracy is about +/- 1 cmĬan be used to detect other active US sensors (listen mode)Ĭool LED light around the “eyes” (or should they be called ears?)Ĭan be used to either keep track of your current heading as wellĪccuracy in angle mode is +/- 3 degrees per 90 degrees turned Some detailed information about the sensors for the EV3 sensors. Other very cool features include the ability to auto-identify the sensors and motors when you plug them into your brick. Micro SD-Card Reader, can handle up to 32 GBĦ Buttons with Backlight, handy for debugging and status The two bricks do not differ a whole lot in size. Please note that the images below don’t give a true sense of scale.
![robotc ultrasonic sensor robotc ultrasonic sensor](http://www.cs.csi.cuny.edu/~imberman/csc126/ROBOLABnxt_files/image044.jpg)
The source of this information is The LEGO Group, according to the original PDF. The original table came from the Roberta website, I just translated it from German. So just how much better is the new brick? Below you can find a table that puts some of the main aspects of the new EV3 brick NeXT to the NXT.