Coder Shah

When you press the center button to start up your hub, you'll see a play icon on the LED matrix. Pressing the center button again at this point starts the built-in test program (you'll see the LEDs on the hub light up where you plugged in your motors) and allows you to do simple motor control by pressing the left and right buttons. Press the center button again to exit the built-in test program and press the right button again to access program 0, 1, 2 etc. The SPIKE Prime hub has a similar program but it uses a heart icon instead. You can see a demo here: Not very likely. The first demo program in the app should be transferred to the hub in the normal way (see the number to the left of the Play button in the app to identify the slot). Not that I know of. I know that if the hub is off, pressing the center button turns it on, and holding and pressing the center button when the hub is on turns it off. Pressing the left and right buttons allow you to choose between the built-in test program and the programs you loaded on the hub. Pressing the center button when the Play icon is displayed on the hub runs the built-in test program, pressing the left and right buttons when the test program is running speeds up and slows down the motors, and pressing the center button again stops the built-in test program. Ideally you'll want to host your pictures on a dedicated hosting service such as Flickr, and post links here.

Try the Technic subforum https://www.eurobricks.com/forum/index.php?/forums/forum/115-lego-technic-and-model-team/

Try the Technic subforum https://www.eurobricks.com/forum/index.php?/forums/forum/115-lego-technic-and-model-team/

When you press the Play button in the app, the program is transferred to one of the program slots in the hub, for example program 1. Then when you disconnect your hub from the USB cable, the left and right buttons will allow you to select the program slot (program number appears on the hub). Pressing the middle button runs the program, and pressing the middle button again stops the program. Your little car seems a lot like the basic Tricky robot to me. Try going through the Tricky robot missions, hopefully they will help you.

You can check out @David Lechner's post in this topic:

Press the middle button to turn it on. Hold down the middle button for a few seconds to turn it off. Hope this helps.

Not at the moment, sorry!

https://ideas.lego.com/challenges/339f0029-37b3-4dad-9dd2-6bcec3b93349/application/4f00fabb-4e01-4c59-ad0f-4a9085bdb3ae

https://ideas.lego.com/challenges/339f0029-37b3-4dad-9dd2-6bcec3b93349/application/c88706e3-3a09-454d-a2f6-c9d4584b17fc

Merry Xmas and Happy Holidays to all, and hoping that next year things will be better. Hope you like the video!

I put together a little web page containing resources to get you started with LEGO robotics. It's not meant to be exhaustive, just a list of links to get you started. https://lehubbycodershah.blogspot.com Hope you like it!

Sorry, don't have any ideas off the top of my head. Perhaps you can try going through the tutorials at https://primelessons.org/en/Lessons.html

Because I was bored. Lol.

I admit I'm basing this only on my personal experience. In one case I had student who is a girl. She had a choice between Boost and Mindstorms and she went with Boost because she liked the colors. Admittedly Boost is not Mindstorms but the point I'm trying to make is that she did make a decision based on color. Yup I totally agree with your statement there. The marketing is now more inclusive. I'd be ok with that too. Probably will have to see what happens after a few years. Thanks so much for sharing your thoughts! It's very much appreciated.

I tried using the Wayback Machine and I found that you can still download the .rbt files from this link, which you can then open in your 2.0 software. https://web.archive.org/web/20120116205731/http://mindstorms.lego.com/en-us/support/buildinginstructions/8527 -/Alpha Rex - program.aspx

Yup! However I do think that in Malaysia that both boys and girls do have devices, though definitely more boys and girls come for my classes. I'll also add that it seems that 51515 is definitely more attractive to both boys and girls, whereas 31313 seems to me to be more skewed towards boys. Again, this might not be the case in other countries, so your mileage may vary. To clarify, the initial premise of the video is that the target audience is Mom and Dad buying a robotics set for their 10-12 year old kid, and the conclusion that I have reached is that 51515 set is totally fine for that target audience. During the course of the video i did say that if you need features like daisy chaining, sd card slot etc you would be better served by the 31313 set, but the aforementioned target market probably won't care about that, and I'm not really talking about robotics enthusiasts specifically (perhaps I will do a second video for robotics enthusiasts). No doubt that EV3 has more to offer than just Python. I'm just saying (probably could be communicated better) that while both sets offer graphical and text based programming interfaces, for 51515 both are ready out of the box while for 31313 you'll need to do stuff to make it work. I do agree with you that potentially if a wire breaks in the 51515 set, it will cost more to fix compared to 31313 where you just have to replace the cable. I'm guessing that the flexible wires and push fit connectors will make it far less likely to break though, compared to the studded connectors for PF. What I see kids doing is yanking the wires to disconnect them from battery boxes and the studded connectors offer more resistance than the push fit connectors, potentially accelerating the failure of the wires. Anyway time will tell. Thanks for your thoughts though! Agreed, however I think that it's more likely that parents will either just contact LEGO Customer Support to ask for new cables (free) or as @doughnut mentioned, just buy a pack of cables from LEGO Education or the secondary market (cheaper) Cool! I didn't know that! Any resources or links?.

Some background. I offer LEGO Mindstorms classes to homeschoolers in my country (Malaysia). So we're talking about small groups of not more than 5 kids at a time. Families would drop them off for class and pick them up after. I teach both boys and girls although I do see more boys then girls. However, by observation, I notice that both boys and girls do have more or less equal access to devices and gaming consoles, as they're not only used for MIndstorms, but also used for things like online learning, drawing, presentations etc. Devices are rarely new, most of them time they were old laptops or desktops that have been handed down. However Mom and Dad (who tend to have newer devices) do let their kids use their devices if the kid's device is too old to install the app required. One thing that is clear to me though is that none of my students over the period of ~7 years have ever touched the on-brick programming. It's fiddly and hard to use from their perspective. As I mentioned during the start of the video presentation, I'm addressing a specific audience - Mom or Dad who just wants to buy a set for their kid. Not schools or robotics centers who teach many kids at a time. In those use cases, on-brick programming is a godsend. Which is correct, but officially LEGO (via LEGO education) only supports ev3dev and python, and again based on my experience, Mom and Dad are not likely to jump through all the hoops required to install and run ev3dev, let alone all the other possibilities that are available. The point I'm trying to make is to compare the detachable wires for motors and sensors in the 31313 set with the fixed wires for motors and sensors in the 51515 set. There are two issues: 1. If a cable breaks you have to replace the whole motor, instead of just the cable. 2. You can't get longer cables. For issue 1, Power Functions motors have fixed wires and I can't seem to see a lot of people complaining about having to replace them if the cable breaks, although it is possible to assume that the cost is low enough that it's not really an issue. However the combination of flexible wires and the push fit connectors means (for me at least) that the chances of the wires failing are lower compared to the wires in the EV3 set. I've broken the little plastic connectors on EV3 cables many times. For issue 2, even thought LEGO do sell Power Functions wire extensions, they do not sell Powered UP! wire extensions at present. They also don't sell EV3 extension wires. For both cases you have to turn to third parties and PV-Productions appears to be the only source at present, and the wires are definitely costlier than custom EV3 wires. Thanks for your thoughts though! I'll be compiling all of them for a follow-up video if that's ok with you.

Yup, indeed, it all depends. As per my conclusion in the video, most customers would be very happy with the 51515 set, but if you need things like the display, sd card slot etc, go for the 31313. I have both, love both and use both.

Building instructions for a desk clock made from the 51515 set.

That was my conclusion as well.

@Munchkin255 It's meant to simulate the alien from Space Invaders. @GroundskeeperWillie Thank you!

My take on 31313 vs 51515. I fully understand that many of you may not agree with me, and that's OK. Get the set you want, and have fun!

@JintaiZ Thank you!

Building instructions for 5TEAMLOCO, a model of an 0-6-0 tank engine built from the LEGO Mindstorms 51515 set

@JintaiZ Thank you!