The robot prop uses a Raspberry Pi 3 model B and Arduino. All powered by a 12volt 10 AMP LiFePO₄ battery. It is controlled by a Futaba 8J remote and currently is only using 3 channels. The head is on a counterweight system so it can move around freely and not hurt the structure. The panels are made from fiberglass reinforced project foam board, Then covered with a layer of automotive Bondo filler and paint. I have added a detailed part list and many 3D printed files to help build your own K-9.
Current feature list:
He can speak, pseudo randomly blink the panel lights, wag his tail, and drive around
Future updates:
Would like to get some ears on him and add a laser gun to the nose.
Thank you, and yes I should upload a video or two. I put a lot of effort in the build and it too at least to me, is close to a real movie prop as you can prob get. We recently took it to a local comic-con and K-9 was a big hit. He never missed a beat and we could barely go anywhere as we were stopped often for a photoshoot. Though that was the fun of it, to make other happy to see it.