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my nxt is not updating it says it cant locate the nxt

I am using a bluetooth connection trying to update firmware from 1.05 to 1.31 and it displays the message cannot locate NXT device to download firmware. My NXT works fine other than that. I got it ...
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53 views

how to send direct command to ev3 brick

I am new to ev3 python but am working on a project. I was reading about NXT-python that " It works by sending the direct commands detailed in LEGO's "Blue-tooth Development Kit" to the NXT brick" I ...
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15 views

changing ev3p file back into an ev3 project file

how do I change an ev3p file into an ev3 project file. Everytime that I click on the ev3p file to open it, it turns up as text in notepad.
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59 views

city miniature for IoT (sensors etc.)

I was looking for a way to build a mini city (scale around 1/35) in a way that would be rather realistic. The objective is to present it on a 1.5m x 1.5m table, where we would simulate some sensors ...
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43 views

The HiTechnic Color sensor is not detected in the port view in lab view

When I inserted the HiTechnic Color Sensor Block into the Ev3, the Ev3 detected the color sensor. But in my Mindstorms lab view, the HiTechnic color sensor does not appear on the port control. Can ...
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34 views

Lego Event in Fountain Hills arizona

I'm trying to find documentation for a special event that Lego did in Fountain Hills Arizona. I believe it was in the time of lego power miners and the castle series. They had a tent set up and had 4 ...
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1answer
36 views

Is there a way to restart a program with EV3?

I've got a program with a code lock, and I would like the program to restart when you enter the incorrect code. Does anyone know of a way to do that?
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55 views

Is there any software except SR 3D Builder with the ability to simulate the interaction of gears that doesn't require scripting?

I'm aware that one can do that in LDCad but with scripting. Should I invest my time in learning SR 3D Builder or is there any other option? It's just not a very intuitive software for me but I might ...
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1answer
106 views

Run Code From PC

https://www.ev3dev.org/projects/2014/05/09/Python-Rubiks-Cube-Solver/ The other one gives a solution in around 20 steps, but takes around 500 MB of memory, so I need to run it on a computer How do I ...
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39 views

EV3 Brick is Stuck on Red

The EV3 brick started by flashing red. Then started where it is stuck on two red buttons. Have changed batteries, and manual reset with no change.
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44 views

Using switch block with Hitechnic color block

Can I compare the Hitechnic block --> measure --> color output in a switch block? For example, if the Hitechnic color sensor is seeing black, then do something, else do another thing. If not, then how ...
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33 views

Are there any coding platforms for my NXT available for my IPad?

Can anyone tell me any app on the App Store so I can program my NXT? Please let it not be one of those ones that you have to pay or one of those that are just controllers. Thanks for your help.
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46 views

LEGO train 7898 Arduino Library?

So I want to control the green 7898 train with an Arduino, but the library I have installed doesn't support this specific train. My question is if anyone knows a library that does?
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28 views

Transforming Lego PF protocool from philohome to Pronto Hex?

I was trying to transform the Lego PF codes, which are shown in this document, to pronto HEX (a kind of IR code format), but I wasn't able to do that. Does anyone have any idea how to transform this ...
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55 views

EV3 Spinner factory not moving in the right order

We've built a spinner factory going by the original instructions in the Lego Mindstorms EV3 Education Software, and downloaded the program for it onto the bricks, the Spinner factory moves around, the ...
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110 views

Half sized block

I know a standard block is 9.6mm tall and a plate is 1/3 of that at 3.2mm. I found several blocks that are 4.8mm tall or 1/2. What are they called? Are they still made and where can I get some?
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129 views

Please help identify this Ausini piece

The one that looks like a rocket head or a projectile tip. Edit: "I hoped there was a corresponding Lego piece. No there is no inventory on the instructions."
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71 views

LEGO set database with box dimensions

I've been looking around the BrickLink and Rebrickable databases for comprehensive and accurate box dimensions (width, height, depth.) BL's data is questionable and incomplete and RB doesn't have any. ...
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2answers
265 views

Is EV3 Device Manager still active?

Link to https://ev3manager.education.lego.com/ is broken - will this be fixed?
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209 views

Bricx Command Center says “No connection to the programmable brick”

I saw that Laurens Valk in THE LEGO® MINDSTORMS® EV3 DISCOVERY BOOK thanks John Hansen for the EV3 screen capture tool, and, upon further investigation, I found and installed Bricx Command ...
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391 views

Loop interrupt stops all loops, not just the one designated

I have been using loop interrupts for a while, and not had an issue... until now. And it is driving me nuts. The program has 2 main loops, titled "touch" and "end" with two more nested in the "touch" ...
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274 views

EV3 low battery communicate right after startup

I just bought EV3 and started having battery problems. I am using 6 NiMH 1.5V batteries for my EV3. They lasted for around 10 minutes of work and went flat (that's what EV3 kept saying but the ...
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0answers
24 views

Merging functions together

I know how to code gyro+ PID. and how to code acceleration and deceleration. But now I have a question: Can I merge these together? Instead of using my block I mean making only one program that ...
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1answer
162 views

Has Anyone Ever Reprinted a LEGO Powered Up Connector With A 3D Printer?

Has anyone ever reprinted a LEGO Powered Up connector with a 3D printer? Currently, I'm using a modified SATA adapter for some LED lights on my train.

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