Eliminating Servo jitter!

Is it possible to wire a servo up to a particle core and have it only move when bidden? I don’t want the servo to move if the wifi connection drops out, or if there’s a powercut, or if the particle core reboots for whatever reason.

This may not be possible.

I just had a bad experience with a relay wired to an arduino and that was quite jittery, especially on startup.