Victor 888 Break/Coast Switch

[chadwick]

What would be the best method for switching between coast and break modes on the Victor 888? We're looking at both the digital I/O option or the Switch/Servo method. How would we go about setting this up?

[vinnie]

Originally Posted by chadwick

What would be the best method for switching between coast and break modes on the Victor 888? We're looking at both the digital I/O option or the Switch/Servo method. How would we go about setting this up?

Do you need to switch during the match?
Because if you don't need to switch modes on the fly you can just move the jumper on the pins.

[chadwick]

Originally Posted by vinnie

Do you need to switch during the match?
Because if you don't need to switch modes on the fly you can just move the jumper on the pins.

We plan on switching during the match, so moving the pins wouldn't help.

[Ether]

Originally Posted by chadwick

We plan on switching during the match, so moving the pins wouldn't help.

You could build a tiny robot to put on your robot to change the jumper pins.

Sorry, couldn't resist.

Here's a link that might be of interest:
http://www.chiefdelphi.com/forums/sh...22&postcount=6

[DonRotolo]

In the olden days, we'd connect a digital I/O line (on the digital sidecar) to the center pin of the brake/coast 3-pin connector. Setting the pin high yielded one behavior, setting it low yielded the other behavior. I don't remember which was which, but surely you can figure it out in a minute of testing.

Use only the Signal line of the Digital I/O, not the Gnd or +5 pins

Then post the results here for the next guy, OK?

[chadwick]

We'll definitely be playing around with it! I'll post our results as soon as we have something figured out.

[nighterfighter]

The other option is to use Jaguars on CAN, and you can change from brake to coast on the fly with your code.

[cgmv123]

Originally Posted by DonRotolo

Setting the pin high yielded one behavior, setting it low yielded the other behavior. I don't remember which was which, but surely you can figure it out in a minute of testing.

High is coast, low is brake.

[Ether]

FWIW, from the Black Jaguar Schematic Rev B.pdf