$17.60 for the internet connected microphone and camera (see parts list below),

list of coffee machines for under ($60-$18):

https://www.google.com/search?q=coffee+machine+under+%2442

m5stack camera: $7.10 https://shop.m5stack.com/products/unit-cam-wi-fi-camera-ov26...

m5 stack microphone: $3.50 https://shop.m5stack.com/products/pdm-microphone-unit-spm142...

m5stack atom light S3 controller: $7.50 https://shop.m5stack.com/products/atom-lite-esp32-developmen...