The (LCD) is traditionally used to show data, graphics, or both, on electrified glass plates. Typical LCD parts consist of a controller and a glass substrate material. LCD segments mounted on the glass substrate material are operated by an electronic controller that consists of a microprocessor or microcontroller. The LCD's crystal segments are placed between glass plates with electrodes. In order for the crystal segments to form letters or characters, a small AC RMS voltage is needed. The AC RMS voltage turns on the crystal segments. The electronic device responsible for managing this electrified voltage for the crystal segments is the LCD controller. To assure the timing sequences to turn the crystal segments on or off are correct, a microprocessor or microcontroller is used inside of the LCD controller. Typical LCD controllers used to operate the crystal segments are HD44780 and KS0066 devices. A typical LCD and its controller, identified by U2, are shown as follows...