[padrino]

With the run today I thought I would throw out a request, looking for ideas.

With the data logging on the XL I know I'll want to jump in my RX box often to pull the log. I previously made a y connector with port on my e-revo but with the Spektrum or Futaba RX when supplying power to the ESC via Caslte Link the RX activates and starts talking. I would like to put something together that will only allow power to the RX if it's coming from the ESC and not the other side of the Y connector, essentially an automatic switch. I know I can also wire it with a manual switch but since I'm looking into it I was wondering if anyone who understands circuits would know what I could wire up to allow this behavior automatically.

When connecting the batteries in this setup it arcs quite strong, bad enough that I'm already starting to see pits in the castle 6.5mm bullets after only a few connections. I know this topic has been discussed quite a bit with the MMM but I have never seen it so bad that it starts pitting connectors so quick so I wanted to surface it again.