View Single Post
  #40   Spotlight this post!  
Unread 14-01-2011, 14:25
Hugh Meyer's Avatar
Hugh Meyer Hugh Meyer is offline
Registered User
FRC #1741 (Red Alert Robotics)
Team Role: Mentor
 
Join Date: Feb 2009
Rookie Year: 2008
Location: Greenwood Indiana
Posts: 158
Hugh Meyer has much to be proud ofHugh Meyer has much to be proud ofHugh Meyer has much to be proud ofHugh Meyer has much to be proud ofHugh Meyer has much to be proud ofHugh Meyer has much to be proud ofHugh Meyer has much to be proud ofHugh Meyer has much to be proud of
Re: How should we wire the photoswitchs?

Quote:
Originally Posted by caffel View Post
This is to Al S. and Hugh.
Thanks for keeping this idea alive.
In our tests we were using a FRC battery on a test robot. We did not pay any attention to the battery level at the beginning of the tests and immediately after the sensor started to work they blocked the wheels off the ground and started testing how the sensor code effected the drive motors (new loads).

Hugh has shown quite graphically that we may need stabilization. Our IR sensors start to fail at about 10v.
Hugh, do you have any graphs or history of current on that machine ?
What was the measurement point ? (CRIO's output of voltage I'm assuming)
Hi Charlie,

The voltage is measured at the input to a Jaguar. Attached is the current from the same match. The current data is from the # 2 left motor in our drive train so this only shows one motor. I don't have current for the entire robot. This data is returned on the CAN bus, shipped to the driver station, then logged in a file by the dashboard software.

-Hugh
Attached Files
File Type: pdf Left02_Current_Match65_zRobot.pdf (133.0 KB, 45 views)