Systems and methods for providing a differentiation of two identical slave devices on a same I2C bus without any hardware or software overhead are disclosed. An authentication request for authenticating a client is received from a client device used by a client for establishing a session with a server. The first conductive type transistor has a first trench and the second conductive type transistor has a second trench. An amplifier is used to sense the voltage across the shunt resistor and the voltage drop across the switch. A smart airbag state monitor is separate from the vehicle restraint control module, is coupled to the state devices, and alters the state in response to the airbag state signal. The washing device comprises a body, that rotates around an axis, that is essentially perpendicular to its longitudinal axis.