Microelectromechanical systems (MEMS) (also written as micro-electro-mechanical, MicroElectroMechanical or microelectronic and microelectromechanical systems) is the technology of very small mechanical devices driven by electricity and it merges at the nano scale into nanoelectromechanical systems (NEMS) and nanotechnology.
MEMS are separate and distinct from the hypothetical vision of molecular nanotechnology or molecular electronics.
MEMS are made up of components between 1 to 100 micrometres in size
(i.e. 0.001 to 0.1 mm) and MEMS devices generally range in size from 20
micrometres (20 millionths of a meter) to a millimeter. They usually
consist of a central unit that processes data, the microprocessor and
several components that interact with the outside such as microsensors.
The
main aim of this project is to control the PC using MEMS. The MEMS will
be fixed to the hand. Whenever the hand moves in any direction, the
mechanical movement of the hand will be recognized by MEMS. MEMS
converts this mechanical hand movement into equivalent electrical
signals and sends it to the microcontroller. The microcontroller
receives this and sends it to the Zigbee module from there it is
transmitted into air.
At the receiver side, the transmitted data will be received and based on the input, the PC will be controlled accordingly.
SOFTWARE AND HARDWARE TOOLS:
Software Tools:
- Keil compiler
- Orcad.
- Proload
Hardware Tools:
- Microcontroller AT89S52.
- MEMS sensor
- Zigbee modules
- MAX232
- PC