Don't spend hundreds of dollars on aftermarket temperature sensors or rely on a fake gauge ever again!
Environmental Monitoring Unit K9 Mobile Sentry is a cellular enabled monitor for my dog's safety while in the vehicle during short stops.
This project demonstrates the usage of a photon and temperature sensor programmed to notify you when your car reaches a certain temperature.
This project uses the Particle board to sense the distance from the rear of the vehicle to another object nearby when parking.