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Unread 05-08-2013, 21:03
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Chris_Elston Chris_Elston is offline
Controls Engineer
AKA: chakorules
FRC #1501 (Team THRUST)
Team Role: Engineer
 
Join Date: Feb 2004
Rookie Year: 2001
Location: Huntington, Indiana
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Re: Servos controlled by different controlller

Quote:
Originally Posted by techhelpbb View Post

Aside to this:
I am curious where FIRST FRC stands on CAN/RS-232 interfaced systems. I know you are not allowed to control the Jaguars directly from something other than the cRIO but I personally have not seen anyone try to get inspected a robot that has a custom circuit on it that sends data over CAN to the cRIO and lets the cRIO echo back instructions to the Jaguars. I have also not seen anyone setup a multi-drop serial network which is entirely possible from an RS-232 port (see RS-422/RS-485).

In 2012, we used a 6 axis IMU sensor that interfaced to the serial port of the CRIO. No problems inspecting.

Here is a picture of the interface box:
http://www.flickr.com/photos/teamthr...57629273847264

The sensor worked very well, but we kept blowing the voltage regulators on the circuit board. Because of this problem, we had to disable and by-pass the IMU sensor after it kept failing due to power problems.
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Team T.H.R.U.S.T. 1501
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Favorite CD quote:
"That can't be their 'bot. not nearly enough (if any) rivets to be a 1501 machine." ~RogerR: Team #1369