It's not model of a brain, it's a model of a bunch of connected neurons. I think it's probably easy to emulate a neural network in an embedded CPU. That seems

It's not model of a brain, it's a model of a bunch of connected neurons. I think it's probably easy to emulate a neural network in an embedded CPU. That seems somewhat boring. It might be more fun to build a bunch of discrete neurons out of analog parts. Building a forward-propagation-only (perceptron) system should be pretty easy. Might be hard to actually train them.