You can do this for farts already with a Raspberry Pi and a gas sensor, maybe there's other types of sensors that can detect ammonia? https://www.raspberrypi.o

You can do this for farts already with a Raspberry Pi and a gas sensor, maybe there's other types of sensors that can detect ammonia? https://www.raspberrypi.org/learning/fart-detector/worksheet/ https://www.raspberrypi.org/learning/fart-detector/worksheet...