Nxt Program Software

Nov 22, 2016  NXT Software 2.0 de LEGO Tutorial Basico - Duration: 8:16. LilyC700 21,543 views. How to program your Lego NXT without a computer - Duration: 6:55. SCI-FI Science Camps 11,254 views. Free nxt 2.1 programming download. System Utilities downloads - LEGO MINDSTORMS NXT by LEGO and many more programs are available for instant and free download.

Since the launch of LEGO MINDSTORMS in 1998, three generations of MINDSTORMS products have been on the market:. 1998: LEGO MINDSTORMS (RCX). 2006: LEGO MINDSTORMS NXT. 2013: LEGO MINDSTORMS EV3Figure 1: Three generations of Programmable Bricks: RCX (left), NXT (middle), EV3 (right)Several LEGO sets have been released for each generation, but the Programmable Brick (Figure 1) is what makes each generation unique. Hya LaurensFirstly great comparison, this already helped me alot.But I am all new to this and thinking of buying EV3 for my boys (10 + 12) and am rather confused and overwhelmed with information (or lack of)1. Is the educational pack 45544 better than the 31313.

Namely is the brick from 45544 different as I am wondering if I won’t need the extra software 200045 needed to test and fine tune components. D batteries will not hurt anything, as long as you do not exceed the maximum input voltage specified for the controller.

The D batteries will give you more current, or the same current for a longer time. The capacity of a battery is measured in Amps/hour, or milliamps/hour for small batteries. When you place batteries in series positive to negative to positive etc. the voltages add up. When you place them is parallel, with all of the negatives connected together, and all of the positives connected together, you get the same voltage but more current is available. Hi Ray,I understood that most of the new sensors communicate wih the EV3 brick using UART (serial), while most digital NXT sensors use I2C.

EV3 has UART, I2C and Analog – hence the backwards compatibility. The NXT does not support UART.Maybe someone experts this subject can find ways around this, but the article/video here describes the out of the box experience. The schematics have not been released yet at this point, so we’ll have to wait and see.On the other hand, there isn’t much reason to buy EV3 sensors for NXT, since comparable sensors are already available for the NXT.

Yes, for some unbeknown reason, UARTS have made a resurgence?I even notice that a lot of “Raspberry Pi” Add-ons now feature UART Interfaces.UARTS are used for asycronous serial communication. No clock is required and the timing of the bits is determined from the leading edge of each character. A minimal full-duplex interface requires three wires, TxD(Transmit Data), RxD(Receive Data) and Ground.

The full duplex means there can be data going in both direction at the same time.I2C is sycnronous data transfer with a data line and a clock line. It is half duplex, meaning data can only go one way at any given time.UART is a point-to-point communication i.e.

Only two devices talk to each other, you can not connect extra device on the same UART (unless your using using RS485 drivers/lines)!!I2C gives freedom over that, you can connect as many as 128 devices on the same 2 wire line (with 7-bit address range), saving a lots of wiring for you!!It’s also important to mention that the I2C interface supports clock stretching, where devices that need more time to receive and process data can pull the clock line low (due to being designed to be open-drain) to tell the master device that it’s not ready. Though I2C can theoretically support 127 devices, your average I2C slave device can’t have it’s address fully configured. My team used an EV3 this past fall, and the team is growing and I am able to get my hands on some NXT robots.If I have a group of kids learning and playing around with 3 NXT’s and 1 EV3, using the EV3 software, do you see any challenges with the mixed boxes with a group of kids? I am thinking that maybe I can put colored stickers on each box, and any of the motors and sensors that came with those to help keep them straight. I don’t think the EV3 motors and sensors are backward compatible.I have played around with the EV3 software on the NXT and the NXT medium motor did not work. I was able to get the large motor to work. The color sensor, touch sensor, and the untrasonic seemed to be recognized and it appeared that the sensors will work, though I have not tried to create a program combining the motors and the sensors yet, and think that is something that the kids can play around with and explore.What do you think?.

From the ReadMeEV3home.txt in the installation directory:Operating systems:. Windows: Windows XP, Vista, Windows 7, and Windows 8 (excluding Win RT) (32/64 bit) with the latest service packs. Macintosh: Mac 10.6, 10.7, and 10.8 with the latest service packsSystem requirements:. 2 GB of RAM or more. 2.5 GHz processor or faster.

Minimal supported screen resolution—1024.768LEGO® MINDSTORMS® EV3 does not support tablets or certain netbooks with hardware that does not meet the above requirements. I’m having trouble getting my EV3 brick to turn on with the rechargeable battery.

It worked once when I first plugged in the rechargeable battery (and after the first full charge). But the following day, I tried to turn it on again, and only get a quick flash of the red LED. I took out the battery, recharged it to 100%, and even tried a different EV3 brick, all with the same result. I then put in 6AA batteries, and the brick turned on fine.I am thinking that the issue might be similar to the NXT one, that being the spring connection to the rechargeable battery is bent just enough to no longer make contact.

But since the battery doesn’t appear to be working on 2 brand new EV3 bricks makes me wonder if the battery is somehow defective?Any help would be greatly appreciated – the school year starts next Monday (8/26) so I would really like to get a fix identified before then!Thank you all in advance!. How would rate the backwards compatibility of the EV3?I cannot get it to recognize option 2 (button push and release) of an NXT touch sensor.

I also cannot get it to recognize a RCX (using the converter cable) sensor/motor at all. I am guessing it is because they changed the touch sensor from digital to analog (so they can measure the degree that the sensor was pushed). So while the NXT sensors can technically work on the EV3 I hope the make blocks specifically for the NXT and legacy(RCX) sensors/motors.

So uf I am reading this correctlyIif I want to test bumped I use 2 blocks. 1 for pressed and then 1 for released. I will have to play with that tonight.I also hate to say it but you are wrong about the ev3 sensor.

If you go to the lego education youtube channel and watch the vudeo on the touch sensor he says it is an analog senson that advanced users can program for the degree of press. To see this in the code look at the two optuons for the touch sensor. You demonstrated the bottom option that has 3options 0 push, 1 release, 2bumped. Check out the other touch option in it it has a defree setting. I just looked up the help on the touch sensor and it looks like you two are correct.

The odd thing is that the “measure” state name doesn’t really make a lot of sense if it is only pushed or not. Additionally the icon is a ruler implying that you are measuring the distance that the sensor was pushed. I wonder why they changed it.

Could it be that it was to hard to make the analog sensor or maybe they realized that it is not feasible or worth while to measure the degree a push on such an small button.When I said I could not get the bumped to work, I meant with a NXT sensor. The bumped works great with the ev3 sensor.also, and I am sue it is just me, but I am personally ecstatic that I am having a conversation with you and philo about the workings of the different sensors. Actually it’s more complex than it appearsHere is the summary– NXT touch sensor connects pin 1 to ground (pin 2) through a 2.2k resistor– EV3 touch sensor connects pin 6 to +5V (pin 4) through a 2.2k resistor.On the software side, I found no behaviour difference between NXT and EV3 touch sensors, be it on pressed, unpressed or bumped events, all work fine.BUT!!!

Early NXT sensors had no connection between pins 2 and 3, while later ones have these two pins shorted. The early touch sensors are not detected by the EV3, as can be seen in Port View screen. These early sensors do not work at all with EV3, whichever mode is used. We deerly miss a color lamp block. On the rac3truck bonus model I added one EV3 color sensor and one NXT color sensor.

The model is the EV3 brick. It is a bit of misuse, but if you ONLY want to shine a light, it can be done:1) put the color sensor into measure-color mode and both EV3 and NXT color sensor shine bluish-white.2) Put the color sensor into measure-reflectedlight mode and both EV3 and NXT color sensor shine RED.3) Put the color sensor into measure-ambientlight makes the EV3 sensor turn dark-blue and the NXT sensor goes OFF.It’s not much, but you can shine a light like this. How about software compatibility between NXT and EV3?

Can one send the other a bluetooth message, and can I expect it to react if I use the included programming on the computer right? For example, if the NXT is is programmed to send a bluetooth message (“TEST”, for instance) to slave port 1 at the press of a touch sensor, and the EV3 is programmed to rotate motors B&C for example, when the touch sensor is pressed on the NXT, will the message (TEST) come in from master port one (The NXT), and will the EV3 react and rotate its motors? PLZ reply and enlighten me, as I’m planning to get an EV3 for a project that will only work if they are bluetooth compatible. Hi Laurens,I have a brand new Lego Mindstorms NXT 1.0, which I purchased on eBay but I haven’t got around to building anything yet. In the meantime, someone has offered to sell me EV3 at a decent discount to market price. I’m wondering whether I should pay for a brand new EV3 and start learning the ropes on the latest version or should I first try to get to grips with the older NXT 1.0 set that I have. The EV3 offer seems bit good to pass, hence the dilemma.

Who knows that by the time I have mastered NXT1.0, EV4 would already have been launched!Is it worth splashing on EV3, when I haven’t even learnt/mastered NXT?Thanks. Hello Laurens:We are about to start a robotics program for K-6 and we have been advised to purchase the EV3 kits. Are these too complex for our littlest students? Also, since I will be the one learning to program them, (and I haven’t been able to find a training course for the EV3 – only the NXT) will learning NXT programming be a good start for me, or should I try to learn the EV3 programming from the instructions on the EV3 software?

I learn pretty quickly, but I really like being in a class in which I can ask questions.Thanks so much!!. For technologists, EV3 is revolutionary because threeof its new features:1 Open source Linux computer, similar to the Raspberry Pi2. Web-connectivity through USB WiFi dongle, tablet interface3. Point-and-click programming (MIT’s Scratch ) core in its desktop Mindstorm softwareIt is THE prime example of how MIT’s Scratch technology can be adapted into a complex programmable domain, to allow students and teachers to configure the hundreds of pieces, dozen of sensors and actuators to flexone’s creative muscles to create interesting robots without using a programming language like Python or C. I predict the EV3 will evolve and grow tremendously, given time. ABOUT NXT AVAILABILITY. Your article is a HUGE help.

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I run Robotics And Beyond in CT and NXT is our mainstay for intro-level robotics. I plan to buy only EV3 from now on but also have a learning curve to go through. I have forwarded your article to a number of parents needing guidance for Christmas gifts. As of 12-12-13, LegoEducation.com still sells the NXT 2.1 system but cust. Service told me that it will be available for another year or bit more but not after that. See link below for all NXT 2.1 products and prices. NXT 2.0 is discontinued.

I have noticed that prices on auction sites for NXT 2.0 and 2.1 sets have gone up by about $100. I assume partly due to their replacement by EV3 and partly due to holiday demand. NXT bricks are still around $130-150 for new. I have poor results buying used bricks and recommend against it.

I have tried the NXT touch sensor on the EV3 and it is NOT compatible. Since I have a few of these and really want to use them on my EV3 I investigated it further. The NXT sensor switch connects a 2k2 resistor between pins 1 and 3, with all other pins unconnected. The EV3 sensor is much more complicated. I converted the NXT sensor to be EV3 compatible, by removing the existing 2k2 resistor, shorting pins 3 and 5, adding a 910 ohm resistor between pin 3 and 1, and changing the switch to switch the 2k2 resistor between pins 4 and 6. It is now detected and works fine.

Why this sensor isn’t compatible I’m not sure. Waiting for the EV3 HDK to investigate further.

You effectively converted your NXT touch sensor into a true EV3 one. The problem you had with your NXT sensor is because you have an early version, as I said in a comment above:“BUT!!! Early NXT sensors had no connection between pins 2 and 3, while later ones have these two pins shorted. The early touch sensors are not detected by the EV3, as can be seen in Port View screen. These early sensors do not work at all with EV3, whichever mode is used.”Somehow the best method to convert these sensors is to short pin 2 and 3 as they become compatible with EV3 and remain compatible with NXT. How about the ultrasonic sensor in the NXT Home Edition kit?

I have it, and I can’t see any support for it in the downloaded EV3 Home Edition software, and the NXT software which came on CD with the kit only runs on PPC Macs, not Intel Macs like mine, so I can’t use it.I really want to use the ultrasonic sensor; any ideas on how I could get it to work with the EV3 Home Edition software?BTW, I’m amazed that the NXT’s ultrasonic sensor has been replaced in the new EV3 kit by an infrared sensor and IR remote. Surely that’s a move in the wrong direction from the point of view of robotics proper (i.e. Autonomous machines as opposed to remote control toys). You need to install the Ultrasonic Sensor block from the LEGO MINDSTORMS EV3 website:In the EV3 software, click Tools Import Blocks, then select the downloaded file and follow the steps on the screen.The IR sensor is not a step backward in my opinion.

The ultrasonic sensor can sense only distance. The IR sensor can do that, and much more:Proximity mode (approximate distance to any object)Beacon Heading mode (direction of the IR signal)Beacon Proximity mode (approximate distance to the remote)Remote mode (detects which button on the remote you press)The IR distance sensing is less accurate that the ultrasonic distance measurement, but you get a lot more functions instead. For example, you can create a robot that autonomously finds the infrared beacon.I cover all of these modes, with many example programs, in my new book. HiMy friend has the 2006 NXT software and I have the 2013 EV3 software but I can still connect which is great. Some functionality is greyed out but otherwise it’s fine. My question is can I add Robot C to a block of my own? We are trying to add a switch statement to allow the sensor distance to be registered so that sound output can play like a theramin.

We can’t work out how to use the visuals to do this but are itching to add code to do detect the sensor input.Any pointers (!) are welcome. I have observed that the sign of the “degrees of rotation” parameter changes the direction of motor spin — not just the sign of the “power” parameter. Reasonable behavior. But I have also observed that the direction of rotation is actually the algebraic sign of the combination of the two signs — if both are negative the motor spins forward which I found to be unexpected. Is this documented someplace that you are aware of?

If I make use of this “feature” I run the risk of it being deemed a bug and getting “fixed” in and my programs spontaneously failing at some point in the future. Yes, that observation is correct.

I’ve documented this information in my.I consider it a very useful feature. Especially if you use the output of a certain equation to control the ‘angle’ (Degrees, or Rotations) as well as ‘power’, negative signs can result naturally, and then this is the expected result.If you’d like to change this behavior, you could use a Math block in ABS mode to remove the sign from any negative number.Another subtle thing to note is that ‘power’ isn’t actually power, but it sets the speed. An internal program automatically increases power if the measured speed drops below the set speed.

First — Thanks for the quick reply and comments. I would need more background to understand when negative power and negative degrees would be used in a computation where their signs would combine resulting in wanting to move forward when both were negative.

But yes — I just absolute valued the degrees before passing it to the motor for my case. This puts the program in compliance with the EV3 documentation. Still, while I don’t quite understand how this might be useful, I would like to have the option of being able to use it, should the situation arise, unless Lego considers it a bug that they may change in a future firmware release. It would help if this behavior was noted in the EV3 Help section that talks about the motor parameters, their values, and actions caused.Second – While I knew that speed was a function of power I did not know that the brick managed it as speed and compensates for depleting battery. Good info, thanks again. Hi David,There is other information in the help section that is incorrect as well.

I suspect some of it has been written before the final software was ready.I don’t know what LEGO would change in the near future, but I’m hoping they realize what harm this type of change would do to FLL teams. In any case, you can always save a copy of the V1.01 (current version) and back it up for later use. When new versions come out, they might pull the old one from their site.Negative degrees values could be useful, for instance, for a stationary robot arm that rotates around its base. To make the control easier, it’s nice to keep 0 degrees for the forward pointing position. Then you could use negative degrees values to go to the left or positive values to go to the right. There are other ways to do it, of course, but this method makes the program easier to understand.The reason I think that this isn’t a bug, is that they did prevent the user from entering negative time in On For Seconds mode of the Move blocks. (If I recall correctly – I can’t check right now.) If they wanted to prevent negative Degrees or Rotations values, they would have changed that as well while they were at it, I think.

The Mindstorms sets are aimed at children (building and basic programming) and adults (building, basic programming, advanced programming, even hacking are all recommended by LEGO), but work best with children who can or likely to be able use computers very confidently, program and think logically.Normally this means over about 13. If they end up leaving it alone for ages (like I did), don’t despair! They may, all of a sudden, go back to it — just get the set out yourself, do some advanced stuff with it, let them teach you, do whatever.The home set is easier to acquire and has more models available for it online and in books. The education set is better for teachers because it includes lesson ideas e.t.c, but is more difficult to buy and more expensive, as well as not looking quite as nice. I would recommend the home set for home, and the education for schools and clubs.

Did they ever come up with a simple fix for the incompatibility between Mac operating systems and NXT Mindstorms 2.0? My Mindstorms software always crashed when I opened it.

I found various fixes on the internet. I used a thoroughly kluge one for a while–uninstalling flash player (the source of the problem) then reinstalling it when needed. I mucked around with various attempts to use older versions of flash player. One of the questions that arises there–As time goes on, just how old a version will be worth using?

There were other suggestions, links, etc., and differing reports from various people as to how well these suggestions worked. I eventually just started using other computers to which I have access.Now I’m running Yosemite on my MacBook Pro. I downloaded the home version of the EV3 software. It works fine. The NXT software still crashes as soon as I open it. I could just let things go as they are. However, some of my students, colleagues, associates, etc.

Have written good programs that I’d like to run on my Mac. If you know of a simple solution, I’d be happy to hear it.

Hi, I teach mostly with NXT but also do a little with ev3. Short answer is no, you shouldn’t have a problem using both platforms. However I have found that since switching from xp to seven, (which I delayed until the last possible second) that there are definite problems with NXT labview software. Ev3 is a bit glitchy too in certain areas, mostly around imported hitechnic blocks. Both of these issues are with the software itself rather than having them both on the same machines. At the end of the day I go through about 350 students a week and may only get an issue every other month.

If you want things to go smoothly, computers are not for you. Hi there!The Touch Sensor again EV3 vs. NXT:(Motivation: I wanted to attach a hall sensor from a geared DC motor to EV3.Not very useful, since I can only count up to 400+ Hz as the max. Loop frequency in EV3. Still)Using the NXT touch sensor setup, bridging Pin 2 to 3, EV3 does NOT want to show the status in the Port View. Since this small box in EV3 Soft is very useful, I want it to show.So I have to emulate an EV3 touch sensor.

Reading the following, you can even re-wire or build an adaptor doing the translation NXT-EV3 touch sensor, or whatever digital or even analogue source of signal you can imagine:Using multi meter, I found the internal wiring of the EV3 touch sensor likely to be:. 3 to 5 with a wire, 0 Ohm. (5 as digital input LOW, one bit of “Sensor ID”). 1 to 3 with a 0,9kOhm resistor (reading out analog value?

I have found it is a good practice to keep an extra rechargeable battery available if you are involved in a competition that lasts more than 4 hours. This seems to be the threshold for LEGO when something really begins to go wrong on the brick. What I mean is when battery power begins to wane on the EV3 the brick begins doing funky things that its not programmed to do.

When this happens pull out a fresh & fully charged back up battery and drop it in and the programming glitches will go away. If someone knows why this is happening or can fix it via firmware please step up an fix it.

This one glitch alone can make or break your team in long competitions. This is also another difference between the NXT brick and the EV3 brick. Any ideas here?.

I’m a former NXT 1.0 user and prospective EV3 user; my NXT brick no longer works, it seems. Or at the very least, the rechargeable battery I used has gone bad.

It was the older one. My EV3 set is going to be a birthday present.Anyway, I have a question. Having read various comments, I am beginning to wonder if my old Touch Sensor will function properly with EV3. I need to know how I can tell, as I don’t know if the newer NXT Touch Sensors were at any point packaged with the 1.0 kit. I’ve never had an opportunity to buy the 2.0 kit.I can live with it not functioning with the EV3; I can’t be bothered to do hardware modifications on my NXT stuff, and I may only need the one EV3 Touch sensor anyway for my builds, but I like knowing what my options are.

Hey, Im a student using EV3 programming software, but with NXT set. I have the NXT brick, sensors, everything, except the software for programming.It’s been working out for me, until I reached a problem.I used to work with EV3, and I could set the Move Tank to be ON, and it will keep rotating. I can then add a Wait Block so that it moves on when it, for example, detects a wall. This is really useful and I decided to use this for a new project, which I’m using the NXT set for.However, when I set it to ON, it just rotates for 1 rotation, and then stops. This really annoys me, and I don’t know if this is just something I programmed wrong, or if this is something that’s not compatible between EV3 and NXT.Thanks,JsnLn. Hi JsnLn!Have you used the blue unregulated motor block? If it is “always on” – OK, then just don’t use the Tank move block.We were always disappointed with the (not-) precision it can go straight or keep track on a circle with some radius.So we programmed a “curve follower” instead of a line follower, just weigh the angles from the motors with a clever factor and subtract.

The result is the error, some factor to it, and put it on top of some base power level for the one motor and subtract it from the same base power level for the other.The amplifying factor can be increased until the motors begin to stutter, then decrease a good bit to stable operation.Here you have the recipe for some easy PI-control on the relative angular velocity for steering. Because the angle is the integral of the angular velocity 😉Have fun and report if it worked out.We have used the function lego obviously uses as “steering” -100100 by drawing a chart with sectionally defined linear functions and re-built this input to our circle follower to be a my own block imitating the steering characteristics of the lego motor block with the steering wheel (avoiding any divide-by-zero problems thereby 😉We now program this concept to adapt slowly to jumps in the set values for speed or steering. Steering is adjusted on a basis of the already traveled “length of the way” (route is goal 😉 (imagine some easy measure there. Our normal cartesian measure of Pythagoras is probably correct, but to calculus heavy. Squaring and rooting around. Does it have a floating point module, the poor thing??? 😉Please report back, for you AndiJsnLn.hofma at the domain 9ox.net, if you succeeded, because we have some dustiy NXT in school as well, just tell me where you are and got stuck.Since we use our own curve block anyways, it will be fine both with NXT and EV3, only bluetooth will not do with NXT, and no sensor feedback in EV3.

Lego pushing us away from NXT, sigh. It boots so damn fast. Has no one at lego heard of linux and fast boot modes for EV3?NXT-Users: Do you have rechargeable batteries? After long frustrating sorting charging-discharging sessions with supermarket rechargeables of low quality I dare to recommend.If you’re fed up with old LiIons, just use eneloop NiMh batteries.

1,9EUR for 1 Mignon is OK. D: akku-onlinehandel.With BC-700 or successors (BC-900 etc. And similars) you can get the cheapest charger with discharge cycle to measure capacity and do refresh of cells.

18EUR up.I have 1,9Ah with all cells, bought some 100 (lower estimate), starting back at 2008, only 2 mistreated ones (. Hi JsnLn!I just got hold of a NXT brick and tested.For me, edu EV3 and NXT with firmware 1.31, it works well.The steering wheel block even tries to go straight in the usual not-to-precice way, so blocking one wheel the NXT stops the otherThe tank move block doesn’t. It keeps moving the free wheel if you block the other.So all fine, one might say.If you still like to try the circle follower, I would be interested to hear from you.I right now have no installation of the EV3 non-edu free version.

Could it be it shows the error there while edu works fine???Which firmware does your NXT have?Andish. Drivers olibook series 500 windows 7. I have 3 questions for someone.1.

I THINK that a NXT module will talk to another NXT. It looks like it in the manual. Will the EV3 and the NXT modules talk together? I have an NXT and am thinking of trying a EV3 and may want to daisy chain to get more inputs and outputs2.

I just tried to download the latest software to talk to the NXT and my computer says it is not compatible with my software (Windows 8.2 I think). Is there a later version?3. Has anyone interfaced either of the Lego bricks to a PLC, say a A-B micrologix 1000?Thanks,. I have imported hi technic color sensor to the EV3 software (from the hi- technic site ) and plugged the htcolor sensor to my ev3.I could see the numbers of detected colors on the brick’s port view, but not on the Ev3 (education )software port view.Moreover, even if a program with color detection could run successfully, there was a problem with the brick.The processor of the brick stayed idle since then and I had to put out the battery in order to end the process.

I also tried other programs with htcolor sensor block and the same happened.What is the problem? And what can I do in order to use the htcolor sensor?.