The smart temperature control system version that supports older devices is a control system for users to remotely view and control room temperature using mobile terminals. The user operates the temperature control housekeeper on the mobile phone, and connects the device through 2G, 3G, 4G, or wifi network. It adopts TCP network technology to communicate with the gateway at home through the server. The gateway sends the received command to the Internet thermostat through RF radio frequency technology. So as to realize the remote control of the Internet thermostat. Communication bridge between internet thermostat and mobile devices