Most of the microcontrollers have a built-in ADC module which helps them in reading analog voltage inputs. This feature makes a digital device like microcontroller to be used in analog sensor applications. The microcontroller can communicate the sensed value with other devices with the help of led indications, sound generation or using the communication ports. Among all the output devices the most common and the most effective is the simple LCD module. The LCD module can be made to display letters, numbers, sensor values, clocks etc. They can be also configured as scrolling display also. The LCD module has separate memory where the user can store custom characters like smileys, logos etc. which can then be displayed on the LCD. The LCD display becomes most effective when the microcontroller is coded in such a way that it can display animations on the LCD module.