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The error is caused by the underlying MS Silverlight runtime. As stated in this stack overflow answer, the error may be caused if the caller does not have the required permission. path is a directory. path specified a read-only file. Possible ways to find a solution: Open the Console application and see if the error shows details about which path it ...


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I found a solution: I multiplied the master motor's value by -1. So, the calculation was: (a-b) it changed to : (-a-b). The result was passed to the slave motor and it did the job.


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I'm not sure where you got your theory, but no NXT blocks will not work in EV3 software. You may be able to use this with the LEGO EV3 software using the generic I2C block developed by Dexter Industries. Otherwise, you should look into using a 3rd party programming environment/OS for the EV3 (EV3Basic, ev3dev, leJOS, MonoBrick, etc.)


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There are two attributes in the python ev3dev Motor class called: ramp_down_sp ramp_up_sp Link to documentation: http://ddemidov.github.io/ev3dev-lang-python/ ramp_down_sp Ramp Down SP: read/write Writing sets the ramp down setpoint. Reading returns the current value. Units are in milliseconds. When set to a value > 0, the motor will ramp the power sent ...


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I tried to duplicate this on my 10.10.3 MacBook Air 13. No luck. I did see in the readme file that the minimum resolution is 1024 by 768, and the native resolution of the Air 11 is 1366 by 768. Try the following if you have not already: Use an external monitor of > 768 lines Upgrade your version of Silverlight ...


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Get the initial position of an EV3 Motor and return to it. Setup: I installed Debian Linux on the Mindstorms EV3 brick and I'm using Python 2 to use the ev3.lego package to use the method: run_position_limited(... , ...) to spin the motor to a certain angle position. Python 2 code: which gets the initial position of the Motor on program start: from ...


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I think the main problem is, that you use the "Motor on for # degrees". The program will wait until this command is executed (i.e. the required turn is made), and this can take quite long. The next measurement of the angle difference is taken after that. Having a high start deviation and/or fast turning rates of your reference motor, you will not get a ...


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I managed to install my license of Mindstorms Edu NXT v2.0 (Windows 7 x64) and the software has Data Logging and the Temperature Sensor Block. If you have an upgrade from v1.0 to v2.0 at least the Temperature Sensor Block will be available.


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You probably don't need it, but the LEGO Education NXT 2.1 Software is still for sale through LEGO Education (at least in the USA). They do not advertise and upgrade price, but it does not hurt to ask. The Energy Meter blocks are available for download on the LEGO Education website. I went to http://education.lego.com/en-us/downloads and checked the box ...


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You can even try to make it go at a 90 degree angle and then program the ev3 to go then forward if you can't do otherwise


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The returned values are the reflected light intensities for each of the three LED colors (red/green/blue). The scale is actually 0-1023. Basically, this is the raw value returned by a 10-bit analog to digital converter in the color sensor (2 ^ 10 = 1024). The LEDs themselves may not put out enough light that you could ever reach the maximum value, so you ...


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Actually yes, you can do data logging on your home edition. The firmware is capable to run programs that have been created on the education edition and contain the block "Data logging". In this block you define which sensor is logged etc. When the program runs it creates a log file on the brick. This file contains the logged data. The file contains some ...



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