Victor 884's not behaving the same as Victor 883's

[programmer1]

Hello,

I have been helping my team out with the programming and electronics for the 2004 First competition. Initially, we tested our programming code with last year’s bot while the 2004 robot was being built. We programmed some autonomous code and it worked great! However, after completing the build of the 2004 robot and executing the same exact code on the new bot, we got extremely different results.

Both robots used the 2004 innovation first controller and drill motors for the drive train. However, the old robot used Victor 883's and the new robot used 884's. Thus, we swapped out the 884's and put the 883's into our 2004 bot and it worked fine!

I read on these forums that the 883's cannot be used in this year’s competition, is this true? I couldn't locate that rule anywhere on the First site. Also, we hooked up the 884's up to an oscilloscope and determined that the Victor 884's were only changing the output voltage from 127(0V) to 180 (12V). So in our code, it doesn't matter if we output 190, 210, 220... All of these values cause the robot to drive forward at full speed!

If anyone has any advice, it would greatly be appreciated. Our robot is pretty hard to control in this situation, so it would greatly improve our bot!

Thanks!