Programming an Arm?!?

[2829ron]

Have you considered doing a timed function? Motor will only run one way for a set amount of time and then stop. Then run the other way for a set time and stop.

[Triapod]

Originally Posted by 2829ron

Have you considered doing a timed function? Motor will only run one way for a set amount of time and then stop. Then run the other way for a set time and stop.

I considered this before, but as your battery power decreases, the output you get from your motor also decreases. So even though the time is set, the distance traveled will not be the same. Also the resulting error adds up. I'd go with Mark's idea.

You can do the two motor controls in the same way. Just copy and paste the code you have for one motor: so, have two PID controls, each wired to one of the motors and one of the sensors. The program will be the same, just different device reference and different setpoints.

[lucoytoa]

Originally Posted by 2829ron

Have you considered doing a timed function? Motor will only run one way for a set amount of time and then stop. Then run the other way for a set time and stop.

Do you have an example of this for Labview? We are trying this with our window motor for our claw and I want to open (reverse) for .5 seconds when button 1 is pressed and when 4 is pressed, motor goes forward .5 seconds and stops but still hold the tube securely. Thanks in advance for your help.

[lucoytoa]

Originally Posted by lucoytoa

Do you have an example of this for Labview? We are trying this with our window motor for our claw and I want to open (reverse) for .5 seconds when button 1 is pressed and when 4 is pressed, motor goes forward .5 seconds and stops but still hold the tube securely. Thanks in advance for your help.

I got it to work! Thanks, anyway.

[2829ron]

Originally Posted by lucoytoa

I got it to work! Thanks, anyway.

Just looked here and saw your question and answer. lol. Yeah I do have an example I could've shared. Tried to program it myself last year, tried it in the pit at competition. Didn't work. Programmer from another team did it for me. FIRST can be nice like that, all the GP in the air