In addition, two six-volt batteries are used to power-on the whole external circuit via two different voltage regulators. This controller is ... Figure 5 depicts the schematic of the data-transmission stage. It encloses a ... The EPUP also has two utility interfaces: a piezoelectric buzzer and a low-battery detector which is achieved by a voltage regulator. Another interesting feature included in this regulator is its capacity to shut down the output voltage of 11 volts when it is not required. 2.3 Theanbsp;...