Question

Problem statement: Create and open a. Create a new. rbt file with conditional statemebt that will have a parking motion with the use of distance sensor.(see figure below) Park here

can someone help me with the with the use of LEGO MINSTORMS Education NXT Programming

thank you in advance

Answer 1

The new NXT Programming is replaces the old RCX.

A highly versatile palette of LEGO Technic elements combines with ultrasonic sound, light and touch sensors.

The use of LEGO MINDSTORMS NXT software enables you to program your NXT robotic invention and upload your programs to the NXT via USB or Bluetooth connectivity.

To build a program that runs endlessly, you have first to put a loop block on the work space. This block can be found under the flow blocks. To put it on the work space just drag and drop it to the right-hand side of the starting point on the work space. If you put it on the right place, you will see that the sequence beam will connect automatically the starting point with the loop block. The program is designed for the drag and drop principle. so all you have to do is to put different blocks - for controlling motors, sensors or making decisions and loops etc.

Regarding the Problem Statement above i have solution with the program below with pseudocode:

if (PIR does not detect OR ANY sonar is out of range) { // condition 1
stop
} else if (PIR does detect AND right sonar is in range) { // condition 2
turn right
} else if (PIR does detect AND left sonar is in range) { // condition 3
turn left
} else if (PIR does detect AND center sonar is in range) { // condition 4
go straight
}

if condition 1 is false, then that means that the PIR does detect AND ALL of the sonars are in range. Which implies that condition 2 is necessarily true. Which implies that the following elses have no effect. Your code can then be optimized (and the compiler probably did optimize it) into

if (ANY sonar is out of range OR PIR does not detect) { // condition 1
stop
} else { // condition 2 is true if condition 1. is false
turn right
}