The fact that I'm replacing 1.06 with 1.05 is not a problem, and the standard firmware can easily be restored afterwards by following the same procedure. This was possible as LEGO released the source code of the brick. Unfortunately, this version has a problem with the way the Color Sensor runs in RGB mode which is why a special version was built - 1.05M. There is also a new Brick App program to load as detailed on the MindCub3r website.īefore starting, I was on the 1.06H firmware version.
Update - The software now works with the standard 1.06H firmware version, so this section is no longer relevant but I'll leave the original text below. However, the MindCub3r website has very clear instructions on how to install and run everything. The first three components might be new to some Mindstorms users. It controls the operation of the motors and sensors, using input from the MC3Solver executable to tell it what to do. This is a standard Mindstorms project you can open and edit just like any of the standard robots that came with the set.
It communicates with the Mindstorms Program to tell it what physical moves are required - via command and data files. This is a compiled C++ program that performs the Rubik's Cube solving algorithm. This custom block can be imported and is used by the main Mindstorms Program. MindCub3r runs the Color Sensor in a special RGB mode which is not supported in the standard software. Update - The software now works with the standard 1.06H firmware version, but needs an additional "Brick App" program to be started manually each time it's turned on as detailed on the MindCub3r website. This is a modification of the standard LEGO firmware that works better with the Color Sensor in the way it's being used for this robot, and allows it run the background solver process. The software consists of four components: The MindCub3r uses a standard home edition EV3 set, 3 motors, and 2 sensors. It achieves this with multiple EV3 sets, who knows how many sensors, and runs software on an Android phone. This is not to be confused with the Cubestormer 3 which recently made the news for breaking the world record time for cube solving (human or machine) in 3.253s. The MindCub3r for EV3 can solve it in about 1.5 mins. Over at they have freely available designs for a Rubik's Cube solving robot for either the NXT 2.0 or EV3 LEGO sets. It just so happens there is a fantastic project already available that creates one from just the 31313 EV3 parts - the MindCub3r created by David Gilday. Rather than pick another of the community supplied robots that come with the EV3 software, I wanted to build a Rubik's Cube solving robot.
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