In this paper we present a system for monitoring progress in a mixing and grinding machine via the signal processing of sound emitted by the machine. Our low-cost. low-maintenance system may improve automatic machines and the industrial Internet of Things. We used the Pumpkin Pi board and Raspberry Pi. https://www.spidertattooz.com/AleSmith-Beachwood-Tower-of-Flower-IPA-Collaboration-4pk-16oz/