On Thu, 2011-06-23 at 16:36 -0700, Bob Blick wrote: > Hi Oli, > Just the one cat, sadly no longer on this plane. It takes about two > weeks to train a cat to open doors from the outside. There's a patch of > loop fastener fabric glued to the door, she has to grab it with her > claws and pull the door open a bit, here's a video: > http://bobblick.com/yumyum_hi.wmv > There's a PIC and a hobby servo on each door and a photocell that gets > polled when the door starts to open to figure out which side of the door > the cat is on. The doors plug into an extra wire pair in the house phone > wiring with a simple network protocol that talks to an interface on the > linux box that is my home fileserver and is always on. OMG Bob, that is AWESOME!!! --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .