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 Robotics / RCX / legOS / 2583
2582  |  2584
Subject: 
Re: latest legOS strangeness
Newsgroups: 
lugnet.robotics.rcx.legos
Date: 
Fri, 17 May 2002 01:05:38 GMT
Viewed: 
2232 times
  
Maybe make this selectable with a build option? The bad thing about brake • is
that it actually draws current (=reduces battery life)

ROSCO

Not really..  braking using the current generated by the motor (acting as a
generator) once the power is removed from it.   H-Bridge has what is called
a break bit.  The break bit simply shorts the two terminals on the motor
together, generating a magnetic field that "brake's" the motor.  This uses
virtually current from the batteries.  But I do see the advantage of having
a motor capable of coasting....  so the selectable build option sounds cool.



Message has 1 Reply:
  Re: latest legOS strangeness
 
(...) I may be wrong - 'my' RCX is actually my brother's, and is 3 hours drive away - but doesn't the remote control with the official firmware do float when buttons released, but brake if forward and reverse are pressed together? Max (23 years ago, 17-May-02, to lugnet.robotics.rcx.legos)

Message is in Reply To:
  Re: latest legOS strangeness
 
(...) Maybe make this selectable with a build option? The bad thing about brake is that it actually draws current (=reduces battery life) ROSCO (23 years ago, 17-May-02, to lugnet.robotics.rcx.legos)

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