Password Based Circuit Breaker

Password Based Circuit Breaker is a simple project that helps in controlling the electrical lines with the help of a password.

Nowadays, electrical accidents to the line man are increasing, while repairing the electrical lines due to the lack of communication between the electrical substation and maintenance staff. This project gives a solution to this problem to ensure line man safety. In this proposed system, the control (ON/OFF) of the electrical lines lies with line man. This project is arranged in such a way that maintenance staff or line man has to enter the password to ON/OFF the electrical line.

Now, if there is any fault in electrical line, then the line man will switch off the power supply to the line by entering password and comfortably repair the electrical line, and after coming to the substation line man switch on the supply to the particular line by entering the password. Separate passwords are assigned for each electrical lines.

Principle of Operation

The main component in the circuit is 8051 microcontroller. In this project 4×4 keypad is used to enter the password. The password which is entered is compared with the predefined password. If entered password is correct, then the corresponding electrical line is turned ON or OFF. In this project, a separate password is provided to each electrical line. Activation and deactivation of the line (circuit breaker) is indicated by the load (Light Bulbs).

How to Design Password based Circuit Breaker Circuit?

The above circuit consists of 8051 series controller (AT89C52), 4×4 Matrix Keypad, 16 x 2 LCD Display, 4 – Channel Relay Module and Four Loads. LCD data pins are connected to PORT1 and control pins RS, RW and EN pins are connected to P3.0, GND and P3.1 respectively. Here, the LCD is used to display the information related to the load.

Keypad is connected to PORT2 of the microcontroller. The four Row Pins of the Keypad are connected to P2.0 to P2.3 and the four Column Pins are connected to P2.4 to P2.7. Using this keypad, we need to enter the password.

Four Lamps (acting as Electrical Lines) are connected to P0.0 to P0.3 through the 4 – Channel Relay Module. These are used to indicate circuit breaker state (Light ON – Line Active and Light OFF – Line Not Active).

If you are not using the Relay Module, then you need to use 4 BC547 NPN Transistors (along with its current limiting base Resistor) in order to drive the relays.

Habilidades: Engenharia Elétrica, Eletrônica, Engenharia, Design de Circuito , Microcontrolador

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Acerca do Empregador:
( 0 comentários ) Babapur, India

ID do Projeto: #30184240

7 freelancers estão ofertando em média ₹795/hora nesse trabalho


Hi, I am a electronics and communication engineer with more than 2 years of experience in this field. I have worked on many projects related to this in past. So I have a good knowledge and experience that can help me Mais

₹750 INR / hora
(26 Comentários)

Hi I am an expert with more then 6years of experience in IoT, Automation, Embedded Systems, pcb design and dovelopment and prototyping. I have hands-on experience in arduino, esp32, pic, arm, raspberry pi and other mcu Mais

₹778 INR / hora
(17 Comentários)

Hi DEAR CLIENT, thank you for posting a job. I am a senior electronics engineer. I have enough experience in Circuit Design, PCB Design, Microcontroller Firmware and Mechanical Engineering. I have understood the proje Mais

₹1000 INR / hora
(3 Comentários)

hi..I have more than 8 years experinced in circuit design and development..in my past I have design product for company. I can [login to view URL] way without emiemc problem

₹789 INR / hora
(0 Comentários)

I have experience 10 years in circuit,coding and PCB desing and i can make your pcb with in time as per your request. you can share project details aswinraj8765 in mail (g)

₹750 INR / hora
(0 Comentários)

I am an expert in 8051 microcomputer. I have done many projects using 8051. Embeded software is developed using keil C Compiler I already have 8051 programmer with me. I am Also having few Atmel 89C52 ICs and 16x2 LCD Mais

₹750 INR / hora
(0 Comentários)

I have completed the project of yours you can reach me at 9866275261 for demo. Hi we have a good experince in working with 8051 controller and inpast we have worked on password made projects. Will be able to help you Mais

₹750 INR / hora
(0 Comentários)