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Sunday, 29 December 2013
TOUCH SCREEN BASED HOME -INDUSTRIAL DIGITAL DEVICES CONTROL SYSTEM USING MSP430G2553 LANCHPAD
based HOME / INDUSTRIAL digital devices control system usingmsp430g2553 lanchpad
The main aim of
the system is to monitor and control devices automatically using touch screen.
The purpose of
the system is to control the appliances which are connected to the controller
by touch panel.
this system devices are controlled through the touch panel which is interfaced
with controller. Using this method we can control any device. Here we are
controlling i.e., ON/OFF the devices through the touch panel. Whenever we touch
the touch panel it will sense and fetches this information to the
microcontroller. Microcontroller will process this information and accordingly
ON/OFF the devices. Order of switching the devices will be programmed
predefined in the IC.
A touch panel is a display that
can detect the presence and location of a touch within the display area. The
term generally refers to touch or contact to the display of the device by a
finger or hand. Touchpanels can also sense other passive
objects, such as a stylus.
However, if the object sensed is active, as with a light pen, the term touchpanel is generally not
applicable. The ability to interact directly with a display typically indicates
the presence of a touchpanel.
The touch panel has two main
attributes. First, it enables one to interact with what is displayed directly
on the screen, where it is displayed, rather than indirectly with a mouse or touchpad. Secondly, it lets one do so without
requiring any intermediate device, again, such as a stylus that
needs to be held in the hand. Such displays can be attached to computers or, as
terminals, to networks. They also play a prominent role in the design of
digital appliances such as the personal digital
assistant (PDA), satellite navigation
devices, mobile phones, and
There are a number of types of touchscreen technology.
A resistive touch screen panel is composed of
several layers, the most important of which are two thin, metallic, electrically
conductive layers separated by a narrow gap. When an object, such as
a finger, presses down on a point on the panel's outer surface the two metallic
layers become connected at that point: the panel then behaves as a pair of
voltage dividers with connected outputs. This causes a change in the electrical
current which is registered as a touch event and sent to the controller for
Microcontroller MSP430 G 2553
Thus using this project
device automation is done through touch panel.