Abstract: A method for managing an electronic vaping power device may include performing a safety analysis on a power device circuit. Performing the safety analysis may include using a liquid sensing device to determine whether the liquid is present in the power device circuit. The method may further include disabling, in response to determining that a liquid is present in the power device circuit, the power device circuit from performing the electronic vaping operation or a charging operation.

Abstract: A method for managing an electronic vaping power device may include performing a safety analysis on a power device circuit. Performing the safety analysis may include using a liquid sensing device to determine whether the liquid is present in the power device circuit. The method may further include disabling, in response to determining that a liquid is present in the power device circuit, the power device circuit from performing the electronic vaping operation or a charging operation.

Abstract: A project calculator, including a housing, a circuit board mounted within the housing and including a processor, an input device connected to the circuit board and interfacing with the processor, an output device connected to the circuit board and interfacing with the processor, and a distance sensor rotatably mounted to the housing and interfacing with the processor. A laser assembly is may also be rotatably mounted to the housing and configured to provide a visual indicator to an object to which the distance sensor is pointing. One or more level indicators may also be mounted to the housing.