In an embodiment, a control device is configured to control a mobile IoT light output device in an Internet of Things environment. The input is associated with an application frame of a client-side web browser. Under a predetermined low vehicle speed, a notice sound is generated in both an area ahead of a vehicle and distant from the vehicle, and an area surrounding the vehicle. Each tag receiving the interrogatory signal transmits positional information stored in the tag to the cell phone in response to the interrogatory signal. These amphiphiles display favorable behavior with membrane proteins and can be used to aid the solubilization, isolation, purification, stabilization, crystallization, andor structural determination of membrane proteins. When an electrical current passes through the film and the sensor is exposed to a toxic gas, changes in the electrical resistance of the film provides an indication of the presence of the toxic gas.