Trying to work this MPS Gas Cap into my R2 project.
I want to use it as a fail safe switch in case R2 makes a break for it.
I want to use it in reverse of what it is advertised for. Basically I want
R2's power to be on when the "plug" is in and shut off if the "plug" is
I've tossed it together on my bread board and it does run at 5V no
I'm thinking of somehow linking it to the EZ-B ADC port. Somehow read
the port to sense what state it is on (Plug in or out). From there I have
a Dimension Engineering R/C relay that I can patch into my main power
source for R2.
If R2 takes off I want to be able to grab and pull the plug triggering the
Does this sound doable?
Thoughts? Suggestions? Beer?