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Unread 02-04-2011, 14:29
Andy A. Andy A. is offline
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Re: Servo Actuating Prematurely

Are you controlling the servo with a custom 'button box'? This could be a simple problem of a loose or 'noisy' wire in your switch wiring.

I would suggest

A: Check the wiring of that button if it's something you made custom. If it's a joystick, reassign to a different button. Sticks are mass produced and the switch design and wiring isn't always impressive.

B: require two separate buttons be pressed to perform any really critical one time action like releasing your mini bot deployment. In industry controls for something really important are protected with covers, gates, multiple switches, timed buttons etc. We often don't have the luxury of that kind of thing in FIRST, but requiring two separate actions to move a servo is easily done in code and on the field.

Once you've eliminated your controls as the problem, look at the routing of the servo wiring. Servo's are particularly sensitive to 'jitters' induced from all kinds of sources.