Is it possible to have something turned off for the duration of a timer? If not is there another way to accomplish the same thing?
You dont need a keyframe for the timeline. Just stick your microchip in the timeline and drag it to the time you want.
I'd do this with a timeline, depending on the situation. Just put a keyframe on the timeline that turns the thing off, and set the length of the timeline to how long you want it to last.
I'd use a selector with the first output to your microchip,
Your input to trigger the timer would also go to the Next input of the selector, the timer finished pulse would go to Previous input of the selector.
Connect the current time output of the timer into a calculator gadget set to detect greater than 0.
Once the timer starts counting the calculator O/P goes high and can power on a keyframe.
Record the power down/off of whatever you wish on the keyframe.
You could use the 'timer output' signal with a not gate to do that. You just have to make sure that the 0.00-1.00 (percentage) signal will be strictly 0 or 1. Just connect the timer output to a 'less than 1' and a 'more than 0' gadgets. Then connect their outputs to an and gate, and from the and gate to a not gate. Then you can just hook the not gate up to whatever you want to turn off.
That's what I came up with anyway. If there are better ways I'd like to hear about them.