Color Image Denoising Via Discriminatively Learned Iterative shrinkage(IEEE)
Satish 246
Presentation1.pptx7 segment display using 8051microcontroller
The main aim of the project is to display numbers from 0 to 9 with microcontroller . This circuit is manily used in digital clocks and electronic meters for displaying the numerical information.
SOFTWARE USED:-
Keil software
Aim of the project:-
Seven segments are widely used in digital clocks to display the time.
These are used in electronic meters for displaying the numerical information.
Used in instrumental panels.
Used in digital readout displays
Applications:-
A microcontroller is a small computer on a single integrated circuit.
It is designed to perform one task and execute one specific application.
A typical microcontroller includes a processor , memory and programmable input/output peripherals on a single chip.
What is a microcontroller
The 8051 microcontroller was designed in 1980’s by Intel.
Its foundation was on Harvard Architecture and was developed principally for bringing into play in embedded systems.
The 8051 microcontroller is a low-power, high performance CMOS 8-bit microcontroller with 8k bytes of programmable flash memory.
Description of 8051 microcontroller
8-bit CPU
16-bit program counter
8-bit processor status word (PSW)
8-bit stack pointer
Internal RAM of 128bytes
32 I/O lines or ports
Two 16-bit timers/counters
A full duplex serial I/O port
Features of 8051
Pin Diagram of 8051:-
Seven segment displays are used to indicate numerical information.
Seven segment displays internally consists of 8 LEDs.
In these LEDs, 7 LEDs are used to indicate the digits 0 to 9 and single LED is used for indicating decimal point.
Generally seven segments are two types , one is common cathode and the other is common anode.
Seven Segment Display
AT89C51 microcontroller
AT89C51 programming board
Programming cables
12v DC battery or adapter
Common cathode 7 segment display
Resistors – 10k,330 ohm
2 ceramic capacitors – 33pf
12MHz crystal
Electrolytic capacitor – 10uf
Connecting wires
Circuit Components
Interfacing 7 Segment Display to 8051 Circuit Principle:- Seven segment displays internally consist of 8 LEDs. In these LEDs, 7 LEDs are used to indicate the digits 0 to 9 and single LED is used for indicating decimal point. Generally seven segments are two types, one is common cathode and the other is common anode. In common cathode, all the cathodes of LEDs are tied together and labeled as com. and the anode are left alone. In common anode, seven segment display all the anodes are tied together and cathodes are left freely. Below figure shows the internal connections of seven segment Display.
Interfacing 7 Segment Display to 8051 Circuit :-
7 segment display character representation
we conclude that interfacing 7 segment has been done on hardware and the same is implemented on software using keil software.
Conclusion:-
