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Results tagged with mindstorms
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user 2939
Please use this tag only for general Mindstorms questions and compatibility. If the question refers specifically to the EV3, NXT, or RCX, then use those tags instead.
1
vote
Multiple Programming Blocks Running at Same Time
The final block in the sequence is telling motor D to rotate 1 revolution at 75% power.
In the description of the problem, it says "and Large Motor was plugged into A."
Any chance that is the bug? Put …
- 1,331
4
votes
3
answers
3k
views
What is a normal range of reading of the Light Sensor using EV3 Raw Sensor block?
EV3 software does not support the Light Sensor. It does support the Color Sensor.
The solution is to use the Raw Sensor Block.
What is "normal" for raw sensor block readings?
I'm getting readings b …
- 1
1
vote
How can I program a motor to rotate towards the source of sound?
I don't understand the question. I do understand the quandary of trying to write code in the blocks available in the EV3 IDE.
I suspect the questioner really wants something like, given 3 sound sens …
- 1,331
0
votes
Is it possible to retrive a text file from an NXT?
This is not an answer, just an answer to the @laurentien comment posted in the existing answer.
The "NXT window" icon is the orange L-shaped button (see red arrow).
The "memory" tab is the other r …
- 1,331
4
votes
LEGO MINDSTORMS EV3 Can't find MyData Block
It looks like this:
To get this block for use in your programs, you would need to download and install the Education version of Mindstorms. …
- 17k
1
vote
How can I use multiple switch options in Lego Mindstorms EV3 software?
Yes, multiple switch statements can be nested inside each other.
However, given the problem of a measuring a motor's rotation and converting that into a user choice doing the math first and using tha …
- 1,331
2
votes
System.ArgumentException: Only Sequence Wires can be snapped
*.ev3 project files are zip files that contain a bunch of files.
Using a copy of the original project file you might be able to edit the zip file and throw out a file at a time to see if the project …
- 1,331
1
vote
LEGO Mindstorms Motor Power
The motor speed is controlled by time modulating the available voltage (approximately 9 volts). So at 100% it looks like a continuous 9 volts. At 50% it is periods of 9 volts and 0 volts in equal am …
- 1,331
2
votes
0
answers
228
views
After adding a MyBlock icon to the EV3 palette of MyBlock icons, how can the new icon be ass...
After following the advice given in adding a MyBlock icon to the EV3 palette, can the icon be associated to an existing MyBlock?
Something better than copy/paste the contents of the existing MyBlock …
CommunityBot
- 1
2
votes
2
answers
5k
views
Is there a fix for an NXT reporting "File error!" when running an EV3 program?
I downloaded the new EV3 software from Lego and installed it on Windows 7. The EV3 software runs. I plugged in an NXT using a USB cable. EV3 can edit the memory on the NXT and remove programs/sound …
- 1
3
votes
Code for PID for EV3-g
This is EV3-G code for a PID based on PID Controller for Lego Mindstorms Robots by J Sluka. It uses the steering parameter of the Move block instead of power levels of the Motor block. …
- 1,331
5
votes
Are NXT Light sensors compatible with EV3?
NXT Color Sensors are supported directly by EV3-G, the EV3 software running on the PC or MAC.
NXT Light Sensors are not.
To use Light sensors requires a bit of trickery. EV3-G has a Raw Sensor block …
- 1,331
0
votes
Accepted
Good EV3 iBook for programming or building
First answer is google: FLL EV3 PDF
EV3 and PDF are obvious. FLL is short for FIRST Lego League, which may or may not be for "playing field style robots".
Clinics for coaches and kids at HighTechKids. …
- 1,331
1
vote
Robot that searches for lights
In pseudocode:
LoopBlock (forever)
MoveBlock (B and C motors, 75% power, forward, forever)
-- unclear here, probably want to head for brighter light
-- instead, just wait for 80%
If L …
- 1,331
2
votes
How to program two NXT motors to run at the same time?
It depends on the programming language, but assuming you're using NXT-G then the Move block may be sufficient. The Move block is designed to coordinate 2 motors so that they both rotate at the same s …
- 1,331