Trouble with spike and camera

[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.

[hasin5]

we got the spike working!

now we need help with the camera -> we need to set it up for targetting.

[hasin5]

We had to restore our camera to factory settings and set it up again. Now it is not blurry, but we can not get an image to appear on the dashboard. Any ideas?

[Greg McKaskle]

I suspect the data rate on the dashboard is updating and you need to click on the dashboard camera setting and low the frame rate or up the compression until the communication is within the limits the router is imposing.

Greg McKaskle

[hasin5]

We tried that and it doesn't work..

[Greg McKaskle]

Help me out with some symptoms, doesn't work isn't much to go on.

I assume you have a custom dashboard. If, open the diagram and probe some of the wires in vision to see what is running and what isn't. In particular, the Camera Read JPEG has an outer case structure, one for simulation, one real. On the real diagram, it reads from the camera and parses the string to convert the JPEG into an image. What is going on there?

If the Mbps indicator is not zero, the camera is talking back but the issue is more likely with the activation of the vision component on that computer. You can use the NI License manager to try and activate it, or you can uninstall the NIVision stuff and reinstall the DS update.

Greg McKaskle