Trouble with spike and camera

[hasin5]

we're not using the 9472 port so we need to set up a relay.... can you help out with that?

[Alan Anderson]

Originally Posted by hasin5

we're not using the 9472 port so we need to set up a relay.... can you help out with that?

There's a built-in LabVIEW example to tell you everything you need to know.

When you launch LabVIEW you should see the "FRC 2013 Getting Started" window. On the left side of that window are a number of tabs. Select the "Support" tab. One of the options is "Find FRC Examples..." Click it, and the example finder will open.

You want the Relay.lvproj example. It's in the "Actuators" subfolder under the "FRC Robotics" folder.

[hasin5]

Hey, thanks for the great advice. We managed to access the relay file but we don't understand what the "visible" means... can you please elaborate on this?

[Alan Anderson]

Originally Posted by hasin5

...we don't understand what the "visible" means...

I'm sorry, I don't know what you are referring to.

[hasin5]

In the relay example, with in the case structure, there are two blocks that say visible.... What are those? And if you don't see that... Then what in general is in that case structure? -Its called the property node

[Alan Anderson]

That case structure is only providing visual feedback on the example's front panel. It plays games with the LED indicator on the picture of the Spike so it can have more than two states. Don't worry about it, and certainly don't copy it to your code.

All you need are the Relay Open and a RefNum Set in Begin.vi, and a RefNum Get and a Relay Set in Teleop.vi (or wherever you need to set the state of the relay).

[hasin5]

Originally Posted by Alan Anderson

That case structure is only providing visual feedback on the example's front panel. It plays games with the LED indicator on the picture of the Spike so it can have more than two states. Don't worry about it, and certainly don't copy it to your code.

All you need are the Relay Open and a RefNum Set in Begin.vi, and a RefNum Get and a Relay Set in Teleop.vi (or wherever you need to set the state of the relay).

We would like to be able to set the spike so that it goes forward when we click a button and then it reverses when we release the button. How would we go about programming this?

[Mark McLeod]

Here's one way, ignore the name given to it.

[hasin5]

Originally Posted by Mark McLeod

Here's one way, ignore the name given to it.

How do we create the "Forward" and "Reverse" for the Teleop.vi? We are getting a boolean input and output and we dont know what to replace it with.

[Mark McLeod]

On the Relay Set, right-click on the input node and choose Create -> Constant
Then break the wire and drag and copy/paste it wherever you need to place it.

[hasin5]

Originally Posted by Greg McKaskle

I don't have access to that camera, but page four of the manual calls the black ring the focus ring and states that it is a manual focus lens. It also says that it is preset and you don't need to adjust it unless the image is blurry.

If you post an image taken with the camera, I can give my opinion as to what is causing the blur.

Greg McKaskle

Here is the camera image btw for the person wondering.... It also freezes randomly.

http://www.chiefdelphi.com/forums/at...2&d=1361311627

[hasin5]

Originally Posted by Mark McLeod

On the Relay Set, right-click on the input node and choose Create -> Constant
Then break the wire and drag and copy/paste it wherever you need to place it.

It expects us to put a boolean input (its orange - not blue) - therefore, we get an error when we connect it to the relay set.

[Mark McLeod]

Start with a new Select and it will have several orange floating-point nodes and one green boolean node.
The first thing wired to an orange node will change all the nodes to that type color.