A proprietary open wireless technology standard for exchanging data over short distances. Used by the NXT for communication between the programmable brick and a PC or Mobile device.

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1answer
35 views

EV3 software crashes on Windows 8 laptop

My cousin has Windows 8 x64 netbook laptop. When he tries to start the application he gets .NET framework error and I can see following text in the log file: +000,016 >> MINDSTORMS EV3 launched ...
0
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0answers
31 views

How to receive response from direct_command_reply from EV3 using Python?

I've established and tested a Bluetooth connection (by playing a tone) between EV3 and Mac running Yosemite with Python 2.7.11. I used file write as in bt.write(tone) in Python to play the tone with ...
0
votes
1answer
63 views

Connecting EV3 to Mac over Bluetooth without Lego Mindstorms software

I am trying to connect the EV3 brick over Bluetooth to a Mac so I can use direct commands to send bytecodes. However, the Bluetooth connection remains active only through the Lego Mindstorms ...
0
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0answers
51 views

Why is Bluetooth is so temperamental?

I had a program that would use the Ultrasonic sensor to detect when it was 6 inches from another robot and then would stop send a bluetooth message to the other and would send the other one off. Like ...
2
votes
1answer
106 views

No response when controlling the Mindstorms EV3 brick over Bluetooth

I am trying to control the EV3 using direct commands over a Bluetooth connection. There are no issues pairing the brick with a PC or phone, and opening the serial connection works fine, but sending a ...
1
vote
1answer
161 views

pc program to receive data from EV3 via usb/bluetooth

I'm looking for a library to create a desktop program. It should receive a data from EV3 brick programmed by standard EV3 software. Currently I consider 2 approaches: 1. EV3 brick sends a bluetooth ...
1
vote
0answers
86 views

How do I control one EV3 using another through bluetooth and LabVIEW?

I have LabVIEW 2014 and I'd like to control make one EV3 move forward using another through bluetooth using LabVIEW, and I don't want to have to use the computer as a relay. How do I do this?
6
votes
1answer
66 views

What is NXT-G number format?

We've been following this tutorial to connect a NXT 1.0 brick to a PC via Bluetooth. We've been able to set up the communication, send and receive data in ASCII format. However, whenever we try to ...
1
vote
2answers
45 views

Bluetooth Conection PC-NXT1-NXT2

I want to connect, via Bluetooth, one PC with a NXT brick and then have that NXT communicate with another NXT. So I send a message from the PC to NXT1 and have NXT1 send a message to NXT2. Is this ...
2
votes
1answer
137 views

Bluetooth communication between computer and nxt using RobotC

I'm thinking starting a project involving controlling the movement of a NXT robot from the PC using RobotC. Is it possible? Does anyone have a simple code solution?
2
votes
1answer
202 views

How can I use bluetooth on my phone to run a program on the EV3 brick?

I tried the Commander app but it seems to just let you control individual motors. I would like to run the various programs I have made using an input on the phone through Bluetooth Is this possible ...
3
votes
1answer
119 views

Can a EV3 program run simultaneously with the Running Robot commander app?

Is it possible to run the Robot Commander app and a program on the EV3 brick at the same time? If so how would it be accomplished?
5
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1answer
418 views

Is it possible to use Bluetooth to connect two EV3 bricks using RobotC?

For example to send a numeric value from one to the other?
4
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0answers
113 views

PC To NXT Brick via Bluetooth

We have a fully-working java programme which can connect to another computer and can send messages from this(both sides run java and we used SPP Server and Client), however when trying to connect to ...
4
votes
3answers
3k views

Direct control of EV3

I need to control a car with an EV3 brick. I want to control it remotely. The trouble is, I'm using an education set so I don't have the remote. What means of controlling it remotely could I use? I ...
4
votes
1answer
790 views

How to close color Sensor properly?

I want to get data from the color sensor with Bluetooth. I can get data but when the program terminates, the color sensor dose not close even though I call function close() on the color sensor. The ...
2
votes
1answer
1k views

Is it possible to connect EV3 and NXT bricks like master/slave configuration via bluetooth?

Can I make a Bluetooth connection between LEGO EV3 bricks and LEGO NXT bricks? and If it is possible how to handle the software to make a chain between them?
1
vote
1answer
766 views

Direct command lego ev3 [closed]

Is there any documentation about direct command bluetooth of EV3? Thanks, regards!
4
votes
1answer
679 views

How to use two NXT bricks for 3+ motors and 4+ sensors?

I need to use multiple bricks in order to use more motors and sensors. I need to read sensor values, and tell motors to move. I've tried using bluetooth, however my attempts haven't been very ...
2
votes
1answer
514 views

Use iPhone camera as an input sensor for EV3

As EV3 has Bluetooth builtin as well as iPhone too, is there a way to connect them somehow so that iPhone could send data from the camera via Bluetooth to an EV3 brick? As a more general question, ...
4
votes
2answers
2k views

Can I change the Bluetooth identifier for an EV3 brick?

I'm coaching a number of FIRST Lego League teams and wish to set up our lab so that each computer could potentially be paired with each brick, but I want to uniquely identify the bricks (EV3-Team1, ...
3
votes
1answer
395 views

NXT Bluetooth “Failed!” when turning on

When I attempt to turn on my bluetooth, the response on the display after about 5 seconds is "Failed!" Then I'm sent back to the main menu. I've reset the unit and updated to latest firmware (1.31) ...
3
votes
1answer
3k views

Bluetooth pairing successful in OSX but Mindstorms NXT software still can't connect

I'm using OSX Mountain Lion. I've installed the Mindstorms NXT software successfully using the NXT Script.rb script from Lego's web site, which is supposed to tweak the install so that it is ...
8
votes
1answer
642 views

Connecting to NXT Brick via Processing over Bluetooth

I am attempting to control my NXT model via the Processing programming language rather than the provided language based on LabView. When I can establish a connection over Bluetooth, this works rather ...
4
votes
1answer
194 views

Mindstorms NXT Bluetooth Slow Connecting

I have just bought a NXT 2.0 and have installed the software on my laptop, and after some trouble getting it to connect I now have it connected any working using bluetooth. However it takes an age to ...
5
votes
2answers
4k views

Lego Mindstorm NXT cannot connect via bluetooth

I have an NXT mindstorm brick, running RobotC firmware. I am trying to connect to it, via bluetooth. At first, the problem was that I had the motorola drivers instead of ones from microsoft. Even ...
11
votes
4answers
3k views

Can I control 2 NXT bricks from a computer using bluetooth at the same time?

I am thinking about starting a project involving controlling the movement of a mindstorms robot depending on some input from a Kinect device; however the robot will require at least 6 motors. I have ...
6
votes
2answers
3k views

Bluetooth will not connect Error code: -142016

nxt 2.0 Error code: -142016 The Bluetooth does connect. I am not having these issues with any of my other Bluetooth devices running off of the same dongle. Where do I find the the meaning of any ...