Atmega 162 Microcontroller Analysis

a) Atmega 162 Microcontroller: Atmega 162 Microcontroller is the heart of the device which handles all the sub devices connected across it. It has a flash type reprogrammable memory. It has peripheral devices to play this project to perform. It also provides sufficient power to inbuilt peripheral devices. It need not give individually to all devices. The peripheral devices also activate as low power operation mode.
Features:
• High performance
• Advanced RISC Architecture
• Non –volatile program and Data memories
• JTAG(IEEE std.1149.1 compliant )Interface
• Peripheral features
• Special microcontroller features
• I/O and packages
• Operating Voltages

b) Liquid crystal display: Liquid crystal display
As most of the laptops present these days no not contain serial port, an interface connector that connects the serial port to the USB drive of a laptop used. This enables the data to be sent to the laptop where it is processed.

g) Zigbee: Zigbee is an established set of specifications for wireless personal area networking (WPAN), i.e. digital radio connection between computers and related devices. WPAN low rate or zigbee provides specifications for devices that have low data rates, consume very low power and thus characterized by long battery life. zigbee makes possible completely networked homes where all devices are able to communicate and controlled by a single unit personal computers may be connected to a local area network (LAN), either by a cable or a wireless connections.
h) Personal computer: While early PC owners usually had to write their own programs to do anything useful with machine, today’s users have access to a wide range of commercial and non -commercial software, which is provided in ready –to- run or ready - to- compile form.
i) Voice IC