Thread: Using an Non First Microcontroller with Victor 884 Motor Controller
View Single Post
  #10   Spotlight this post!  
Unread 15-01-2013, 15:21
electroken's Avatar
electroken electroken is offline
Electron Tamer
AKA: Ken Pontbriant
FRC #0230 (Gaelhawks)
Team Role: Mentor
  
Join Date: Jan 2012
Rookie Year: 2012
Location: Shelton, CT
Posts: 170
electroken is a jewel in the roughelectroken is a jewel in the roughelectroken is a jewel in the rough
Re: Using an Non First Microcontroller with Victor 884 Motor Controller
Quote:
Originally Posted by Ether View Post
How much current can that PIC source thru that 270 ohm resistor?

There's a minimum threshold current required to trip the detection circuitry in the motor controller.
The PIC output is sourcing 10mA to the one Victor 883 I measured. That's a reasonable input current for the optoisolators I'm used to. I'm pretty sure (but not certain) that the 883, 884, and Talon have optoisolators at the PWM input.