Scratch

Hello everyone,

I figured I'd post this to see if anyone is interested.  I have a new project with Scratch for the Lego Mindstorms NXT robots which seems to work, but I hope to smooth out some rough edges over the next month or so.   I am aware of Enchanting, which didn't suit my needs.  In contrast, my project uses the standard NXT firmware (not Lejos), and the standard Scratch 1.4 install (not BYOB).  It's an offshoot of my pynxc project which translates (limited) Python code to NXC (Not Exactly C) which writes to the robot.  My new project, scratchnxc, included in the pynxc files (http://web.bryant.edu/~bblais/projects_html/projects.html) reads Scratch .sb files, and translates to pynxc code and uploads to the robot.  The actual program watches a selected .sb file for changes, and automatically uploads whenever the scratch project is saved.  Check out the docs for the dependencies, examples, etc...

Essentially, I use variables to translate to the robot commands

set [power A] to (100)
set [count] to (0)
repeat until <(sensor 1) < [50]>
change [count] by (1)
end

i've translated all of the control structures, many of the operators, and a small subset of display and sound.  There is at least one worked example included.

If you find it useful, or have any issues, please feel free to email me at [removed by moderator - please don't share contact information].

I hope to put it through its paces in the next month, with middle school students.

Last edited by Paddle2See (2012-11-02 11:20:20)