View Single Post
  #30   Spotlight this post!  
Unread 04-05-2005, 18:12
Joe Johnson's Avatar Unsung FIRST Hero
Joe Johnson Joe Johnson is offline
Engineer at Medrobotics
AKA: Dr. Joe
FRC #0088 (TJ2)
Team Role: Engineer
 
Join Date: May 2001
Rookie Year: 1996
Location: Raynham, MA
Posts: 2,648
Joe Johnson has a reputation beyond reputeJoe Johnson has a reputation beyond reputeJoe Johnson has a reputation beyond reputeJoe Johnson has a reputation beyond reputeJoe Johnson has a reputation beyond reputeJoe Johnson has a reputation beyond reputeJoe Johnson has a reputation beyond reputeJoe Johnson has a reputation beyond reputeJoe Johnson has a reputation beyond reputeJoe Johnson has a reputation beyond reputeJoe Johnson has a reputation beyond repute
Re: COTS Parts made just for FIRST Robots

As long as we are wishing, I suppose we should ask for IFI to go to a serial link (I2C ?) with perhaps 2 RJ-47 (phone jack) connectors that would let us daisy chain Victors, fuse blocks, Spikes, etc.

I would much rather have a single line going from Victor to Victor than what we have now.

While we are redesigning the Victor, how about a PID feedback loop built right in. There is a very good paper from Circuit Cellar Inc here that tells how we could all have PID control without encoders, using Back EMF of the motors to determine speed and position of the motors.

I would love to have this built into the Victor control.


Joe J.
__________________
Joseph M. Johnson, Ph.D., P.E.
Mentor
Team #88, TJ2

Last edited by Joe Johnson : 04-05-2005 at 20:40.