Good observations, but let's also review what this does accomplish. The train system is reliant on mechanical linkage and line-of-sight, so can serve only a li

Good observations, but let's also review what this does accomplish. The train system is reliant on mechanical linkage and line-of-sight, so can serve only a limited audience. While the Pi-powered version scales, making the toilet status accessible to everyone everywhere in the world by leveraging the connectivity of the Internet.