Intel company manugactured the 1st 8-bit 8051 microcontroller in 1981. It was referrred to as MCS-51 microcontroller system. ROM,RAM, Timer, Input/output ports, serial communication and interrupt ogic all are bul ina controller. Allare in built in controller that is why its size was overall small. As we know that when we built a system wtih the help of microcontroller it alwys simple and consits of few components. This microcontroller tystem can be used in various applications to perform a specific operations in machine tools, electronics projects, chemical devices, Medical instrumentaion, PC keyboards, automatic cameras etc. In this article we are going to explore some important 8051 microcontroller projects for electronics and engineering students in the field of life.
The modern system contain three main part such as processor which acts as a brain of all system, memory which contains program instructions that tells the system brain what to do and how to do, and input and output that are used fro further processing data or output of the data. 8050 Microcontroller can also be used in differnt engineering projects such as GPS, RFID, GSM, Robotics, Sensor, Android, Voic controlled, and etc.
8051 Microcontroller Projects
The list of some important 8051 microcontroller projects for engineering students includes the following.
1). Electronic Voting Machine (EVM)Using 8051 Microcontroller
The roject are keys, LCD Board, and suthority switches are the main components are the main components. In this EVM project 3 authority switchs includes the first is for voting mode selection the 2nd swith is for vote and the 3rd authority switch is for clearing the vote.
2). Password-Based Circuit Breaker using 8051 Microcontroller
This project is for power controller peron specially. Mostly electrical accidents accures because of misunerstanding between staff. Ther project Password based circuit breaker provide the solution to these electrical accidents. A line man can switch on and off by using the password whenver he wants to work with line or power board.
List of Microcontroller based Mini Projects
Some low cost and simple projects using 8051 Microcontroller are given below.
1). Five Channel IR Remote Control System Using Microcontroller
Through this project you can control 5 channel remote circuit. This circuit works on the principal of IR sensor communications.
2). Two Digits Up-Down Counter
This project maily used for score board the main priniple of this two dighits up down counter circuit increment 7 sgment display.
3). The Autointensity of Street Lights
This microcontroller project is designed to control automatic street light.
4). Celsius Scale Thermometer Using AT89C51
This circuit works on an A/D converter, The Celsius scale thermometer is designed using AT89C51 and LM35U,
Features of 8051 Microcontroller
The main features of the 8051 microcontrollers are given below in the list.
- 8050 microcontroller is a 40 pin DIP package IC
- 32 pins can be used as input/output pins, and 8 pins are special-purpose pins
- The max operating frequency of this microcontroller is 1.0 MHz
- Operating voltage ot this controller is +5v DC
- ROM is 4KB and the external ROM is 64 KB of 8051
- It has 8 bits data bus size
- Address bus is 16 bits
- It has 6 interrupts
- ISP connector are used to connect ISP programmer with the board for loading HEX file into microcontroller IC
- Red LED is used for power indication
Applications of the 8051 Microcontroller
Some main applications where microcontrollers are used are given in the list belew
- Home security systems
- Intelligent multimeter
- Personal computer keyboards
- TV remotes
- Microwave ovens
- Machine tools
- Chemical instrumentation
- Medical instrumentation
- Electronic toys
- Coffee makers
List of Some of the Microcontroller based Projects are given below
- Automated railway crossing
- Home automation system using IoT
- Smart traffic signal system
- Voice-controlled robot
- Bluetooth controlled robot
- Gesture controlled robot
- Automatic solar tracker
- Biometric authentication
- Biped walking robot
- Smart building using IoT
- Access control with RFID
- Animation hand