Has anyone figured out limit switches for 2015

[Intern]

i do not know how to code limit switches in 2015 labview, can someone comment a picture and show me how to do it, i have it done in begin all i need is teleop

[Alan Anderson]

What do you want the limit switch to do? Describe exactly what you want the robot to do when the switch is open and when it is closed, and we can help you program it to do that.

[Intern]

when the limit switch is pressed i want the cim motor to stop going that direction so it doesn't de-rail

[Alan Anderson]

That's a pretty typical use of a limit switch. Here's how I would do it, using an In Range and Coerce function. When the switch value is not true, the motor control is allowed to vary between -1 and +1. When the switch is true, the motor is only allowed to be between -1 and 0, keeping it from traveling any farther forward.

[1uan]

How do you get the motor control dbl to show up

[Alan Anderson]

Originally Posted by 1uan

How do you get the motor control dbl to show up

In my snippet, that was just a placeholder to represent the value you want to send to the motor. How you come up with that value is up to you. You can get it from a joystick axis, or select between different values based on joystick buttons, or compute it using PID based on sensor feedback, or anything you want.

[1uan]

thank you for the explanation

[TheJuanRing]

hey this is kind of a followup, but has anyone figured out how to do it with c++???

[ozrien]

This might help....the examples are in Java, but the class names are pretty similar.

http://wpilib.screenstepslive.com/s/...ommit=S earch

[mshafer1]

Originally Posted by ozrien

This might help....the examples are in Java, but the class names are pretty similar.

http://wpilib.screenstepslive.com/s/...ommit=S earch

Here are some more examples in LabVIEW, both the limit switch tutorial and the state machine tutorial use a limit switch scenario.
Website of LabVIEW Tutorials for FRC

[TheJuanRing]

Originally Posted by mshafer1

Here are some more examples in LabVIEW, both the limit switch tutorial and the state machine tutorial use a limit switch scenario.
Website of LabVIEW Tutorials for FRC

Originally Posted by ozrien

This might help....the examples are in Java, but the class names are pretty similar.

http://wpilib.screenstepslive.com/s/...ommit=S earch

thanks, both of you guys, for the examples, it is a huge amount better than what i had before
(•‿•)
Edit: In hind sight I really should have thought about searching for that on the WPILib website

[andboyer]

What motor controllers are you using? With the new controller you can connect the limit switch directly to the controller and it will function without any additional code. https://www.google.com/url?sa=t&sour...dAP2YN2BXa9lJQ