ROBOLAB : 440


Robotics / RCX / ROBOLAB / 440	439 \| 441

Subject:	Re: different output power at different ports?
Newsgroups:	lugnet.robotics.rcx, lugnet.robotics.rcx.robolab
Date:	Thu, 14 Jul 2005 12:37:22 GMT
Viewed:	5779 times

On 7/14/05, Elizabeth Mabrey <emabrey@storming-robots.com> wrote: > I just confirmed that some RCX happens to allow various output power to > different output ports. In my case, the port A tends to produce more power > thru motor and the port C does. I then switched the two motors. The > condition stays the same. Therefore, the difference is not on the motors. > Any input will be greatly appreciated! This might be a dumb question, but are we talking actual different voltage levels, or different PWM duty ratios? Have you ensured that you have set (from code) the power levels of all the ports to be the same? How have you observed the difference - and to what degree is it? Orion -- http://orionrobots.co.uk - Build Robots Online Castle Building RPG - http://www.darkthrone.com/recruit.dt?uid=V30311I30328J30379X30379E30260X30277

Message has 1 Reply:

		RE: different output power at different ports?
(...) Without any precious hardware verification, this is what I did: - symptom: motor C was not able to make turn as well as motor A can - troubleshooting steps: a) to ensure even load on both motor ports, I removed all other attachments, and left (...) (19 years ago, 14-Jul-05, to lugnet.robotics.rcx, lugnet.robotics.rcx.robolab)

Message is in Reply To:

		different output power at different ports?
I just confirmed that some RCX happens to allow various output power to different output ports. In my case, the port A tends to produce more power thru motor and the port C does. I then switched the two motors. The condition stays the same. (...) (19 years ago, 14-Jul-05, to lugnet.robotics.rcx, lugnet.robotics.rcx.robolab)

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