Labview Questions!!

[grosh]

Oops. I will make the change and test on Monday. Thanks all!

One last question though...Is Arcade mode(default) needed in the True case as Joe stated earlier... or does it matter..or what?

[Alan Anderson]

Originally Posted by grosh

Is Arcade mode(default) needed in the True case as Joe stated earlier... or does it matter..or what?

The True case is what executes while you press the joystick button. It uses the gyro and vision tracking to rotate the robot to face the target. It does that by controlling the "turn" input to the Arcade Drive vi.

If you want to change the target-seeking code to give commands to a Tank Drive vi instead, you can.

[Mark McLeod]

Originally Posted by Alan Anderson

If you want to change the target-seeking code to give commands to a Tank Drive vi instead, you can.

However, there is no particular reason to do so. The use of Arcade Drive there doesn't affect your driving controls at all, since with the push of the button you've relinquished joystick control of the robot until you release the button.
Your joysticks will not revert to Arcade drive. They will only operate in Tank drive.

[Doug Norman]

Also if anybody knows how to wire the gyro the information is to technical for us.

For gyro wiring, check out the Gyro Example. The example shows generic wiring. For the 2010 kit gyro, the RATE pin is marked. The 5V pin is next to the RATE pin in the row of three pins nearest the edge of the board. The GND pin is next to the 5V pin in the row of pins nearest the edge of the board. For the 2010 kit gyro, the Gain (Volts/Degree/Second) is 0.007. You will need to input that value in the example.

For more on wiring the gyro, see the FIRST Sensor Manual_RevA here
http://www.usfirst.org/roboticsprogr...nt.aspx?id=452

If you have trouble with your gyro drifting, try rebooting the cRIO. The cRIO calibrates modules when it boots, so if you added a module afterward, or your robot was moving during bootup, you may have calibration issues.