29-10-2012, 05:37 PM
Infrared based BANK TOKEN NUMBER Displayer
Infrared based BANK TOKEN.doc (Size: 59.5 KB / Downloads: 23)
Hardware Description
Controller:
The AT89C51 is a low-power, high-performance CMOS 8-bit microcomputer with 4K bytes of Flash programmable and erasable read only memory (PEROM). The device is manufactured using Atmel’s high-density nonvolatile memory technology and is compatible with the industry-standard MCS-51 instruction set and pin out. The on-chip Flash allows the program memory to be reprogrammed in-system or by a conventional nonvolatile memory programmer. By combining a versatile 8-bit CPU with Flash on a monolithic chip, the Atmel AT89C51 is a powerful microcomputer which provides a highly-flexible and cost-effective solution to many embedded control applications.
Algorithm:
• When the kit is given power supply it will wait until we manually press any key from the keypad.
• Once the key has been pressed the controller goes to the particular counter and Token number.
• It will send data to the display units to display first period and wait for certain period.
• After that time delay it automatically gives buzzer and displays next period on display.
• This process continues until all periods of that day are over
• Again it goes to scans for remaining week days