Momentary On/Off

[BurtGummer]

Honestly, I kind of understand how you described it, but I have no idea how to di it in LabView. Seriously, I really don't understand it, and don't have the time to learn it right now. Any links maybe?

[Burmeister #279]

can you better describe the process of buttons pressed and movements for us?

what i'm getting is this:
your T time variable = 10 seconds
button A is held for T+5 seconds
Motor B is moved forward for T seconds and then stops [even though button A is still pressed]
button A is released
Motor B is moved reverse for T seconds

does this sound right?
if Button A is released after less than T seconds, what happens?
does the motor continue for the rest of the T time and then automatically reverse or does the motor reverse immediately when the button is released?

[BurtGummer]

Preferably I'd want it to reverse and reset to it's home position if the button is released too soon. However, the motor will only run for about .5 seconds, so it shouldn't be too difficult to keep it pressed for at least 5 seconds. But as far as you described it, that's correct.

[BurtGummer]

Ok, I wrote a bunch of code in the past several hours.

I scrapped the original idea, and rather went with something slightly different.

1. Button is TAPPED
2. Motor Turns on for X seconds, for V speed
3. Motor reverses, at V/4 for 4X seconds
4. Motor is back at home position

To do this I used 2 case structures in my TeleOp Code. I used a joystick get button for, well, getting the button, and wired each joysticks button 1(trigger) to the case. When button is pressed, it is True, in turn running the code in that case. The code, how I have it written in the case, will take about 1.25 seconds to complete what I want it to do. However, I am concerned that the trigger, button 1, will have to be held for 1.25 seconds for the code to complete, insteads of just having to tap it to run the entire code. I haven't done anything like this, and obviously I can't test it on the robot. So, will the code finish if I only tap the trigger which activates it?

BTW, I am using Watchdog DELAY&FEED to do the timing. That is alright to do, right? I just finally understood autonomous coding today, so I applied the watchdog timing concept to this.

[Greg McKaskle]

You don't want to delay your teleop.

Move your code from the teleop loop into a parallel loop, like the one for periodic tasks. That way your teleop can return and be called again with more joystick info. I'd just move the joystick stuff to the parallel loop too. If it is in a parallel loop, you can use delay or delay and feed no problem.

Greg McKaskle