Downloading the Software Please uninstall any previous versions of LEGO® MINDSTORMS® software first. You’ll need administrator rights for the computer on which you want to install the program. Use the links below to download a copy of the software for your NXT 2.0 from set 8547. The Safari Web Browser doesn’t recognize the download as a.ZIP file. We recommend that Mac users download with Mozilla Firefox or Google Chrome. Instructions for Windows Users • Extract the downloaded.ZIP file into a folder on your computer. • Once you have extracted the.ZIP file, open the folder and double-click the file named “Autorun.exe” • Follow on-screen the instructions to install the software.

• You may need to restart your system after the installation is done. To start the program, double click the MINDSTORMS NXT Software icon on your desktop. The first time you start the program it may take a couple of minutes to get ready. Instructions for Mac Users • Make sure you allow installations from anywhere, not just from the Mac App Store and identified developers. You can view or change this setting under “Security & Privacy” in your System Preferences.

The NXT 2.0 Versus the EV3 71 LEGO instructions don't include estimates for the building times, so the shown in Figure 4.10, is just to build and shoot the ball-shooting scorpion tail. Download the whole program of the robot in NXT-G. Sensor (Proportional. Image for EV3-G Program for the Motor and Touch Sensor of the LEGO Catapult.

• Extract the downloaded.ZIP file into a folder on your computer. • Once you have extracted the.ZIP file, open the folder and double-click the file named “Install”. In the security warning that pops up, select “Don’t warn me when opening packages from this disk image” and click OK. • The NXT 2.0 installation menu will launch.

Simply select your preferred language and follow the on-screen instructions. To start the program, select “LEGO Mindstorms NXT” from your Applications and click Mindstorms NXT.

The first time you start the program it may take a couple of minutes to get ready.

You know the popular nxt robot – the scorpion. Today I'm going to show you how to program it. The program looks like this. First the robot goes until it sees an object less than 15 cm away.

Then it strikes the object until it hits it using the touch sensor. This procedure is repeated and repeated again. First we need a move block.

Set it to unlimited, until the robot sees an object less than 15 cm away. Then it stops. Now, we need another move block for motor A going forward unlimited, until the spike touches the object. Now, the question is how to return the spike back. This would be using the rotation sensor.

First we need to take the rotation sensor and reset its' value, before motor A makes any movement. Then we take the rotation sensor, read how many degrees has it rotated and move motor A backward the same amount of degrees as it rotated forward. This we repeat again and again. We want to repeat this until the enter button of the brick is pressed. If we change the condition of the loop to the enter button is pressed. The program will not work.

That's because the condition is checked just before the program enter the loop. So if we press the enter button while we are on the first block for instance, it would not detect it. That's why we will set the loop to forever and parallel to this we will put a wait block with condition the nxt enter button and then we put a stop block to terminate the program. So our program looks like this. Now, I would like to add another feature to the program.

Let's make the robot display how many times it has stroked. So we take a variable, this time we will use the given variable for number. We initialize it with zero, because firstly the robot has not stroked anything. After each strike we will increase that value with one. Now, instead of the wait block, we will put a loop with the same condition. In it we will visualize the value of the variable. So take the variable, number to text block and a display block. Cheat code editor for r4ds rom.

We set it to text and connect the blocks. Let's now download the program to the brick and test it. One more thing.

Under this video in the materials you can find the program of the scorpion with some explanation on it. It look like this.