A cover for an electrical receptacle including a faceplate. The cover also includes a first transmission tab configured to be electrically connected to a first power line of the electrical receptacle and a second transmission tab configured to be electrically connected to a second power line of the electrical receptacle. Additionally, the cover includes a device (such as a light source, circuit, port, or sensor) in communication with the first transmission tab and the second transmission tab.

A cover for an electrical receptacle including a faceplate. The cover also includes a first transmission tab configured to be electrically connected to a first power line of the electrical receptacle and a second transmission tab configured to be electrically connected to a second power line of the electrical receptacle. Additionally, the cover includes a device (such as a light source, circuit, port, or sensor) in communication with the first transmission tab and the second transmission tab.

A cover for an electrical receptacle including a faceplate. The cover also includes a first transmission tab configured to be electrically connected to a first power line of the electrical receptacle and a second transmission tab configured to be electrically connected to a second power line of the electrical receptacle. Additionally, the cover includes a device (such as a light source, circuit, port, or sensor) in communication with the first transmission tab and the second transmission tab.

A plug connector housing for electronic data lines, comprising a data diode integrated into the plug connector housing.

Examples of the presently disclosed technology provide electronic device modules which can promote fail-safe installation for polarity-dependent circuit elements, and other electronic circuit elements. In some implementations, the electronic device modules may be orientation agnostic about one or more axes.

A current signaling electric wall socket face plate including a rigid panel having a frontside and a backside; at least a first terminal face exposing opening, extending through the rigid panel; a light emitting diode having a pair of electric terminals, the light emitting diode being fixedly mounted upon the rigid panel, the light emitting diode being positioned for emitting light forwardly from the rigid panel and; an electrically conductive wire having a pair of ends, the ends of the electrically conductive wire being electrically connected to the light emitting diode pair of electric terminals, wherein the electrically conductive wire forms a coil, and wherein the coil forms a conductor encircling loop.

Provided is an electric battery charging system, including a connector including a thermistor element configured to change a resistance value according to a temperature, a micro control unit (MCU) configured to receive a voltage varying depending on whether the connector is connected, and receive a voltage varying according to the resistance value of the thermistor element, and a vehicle charging management system (VCMS) configured to determine whether to discharge a battery based on whether the connector is connected and a temperature of the connector.