Design help needed - can Lego do this???
 Hardware Related   Started by Pgastonn S   2015-09-11 15:29:37 -04:00   Comments: 2    Viewed: 456

  1. Pgastonn S
    Pgastonn S Member

    Postby pgaston » Tue Jan 01, 2013 12:48 pm

    Hi - building an entry here for - basically a robotic sail boat competition. We're a high school. Basically we need to:
    • control two RC servos (rudder and sail - both seem to be fairly beefy, driven by 4 AA batteries)
    • read two sensors (rotation for relative wind direction - attached to a small wind vane - analog potentiometer; and a digital I/O line for a water detection sensor.)
    Currently this is all working with an Arduino communicating to an Android running code developed with App Inventor. Nice.

    To make this more robust though, it would be *great* to use Lego mindstorms - especially if this is all with off-the-shelf components. (App Inventor also links up directly to Lego Mindstorms.)

    Having no Mindstorms experience -- Is it worth trying this approach? Thoughts/ideas?

    Pgastonn S, 2015-09-11 15:30:06 -04:00
  2. Mattallenn S
    Mattallenn S Member

    Postby mattallen37 » Tue Jan 01, 2013 11:13 pm

    For general mindstorms questions, the mindboards forums are usually a great place to ask (much more active than these forums).

    I personally think the Arduino is much better suited. You could use an NXT, but you'd probably want to use an Arduino as well. The NXT doesn't control servos (mindsensors does sell a servo controller for about $50), and it's IOs are very limited (with built in resistors etc.).
    Mattallenn S, 2015-09-11 15:33:46 -04:00
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