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PROJECT DESCRIPTION

The project is designed to demonstrate how multiple microcontrollers can be connected in a network to achieve the desired output. This technology is widely used in modern automobiles.

More and more microcontrollers are embedded in different kinds of products from industrial environment to domestic area; a good example is the automobile sector. A modern day car has number of microcontrollers integrated within its system.

As this number increases, the networking and communication between them becomes necessary. The importance of having multiple microcontrollers against a single one is if one of the microcontrollers goes bad only the function related to that particular microcontroller will be affected.

The project demonstrates a command based monitoring tool using the RS232 protocol. A network of three microcontrollers is used in this project. The first one is connected to a keypad for input action while the second one is connected to an LCD display and the third one to drive a relay for controlling any load (LAMP).

Input takes a password on the first MC to display it on the second MC while the third one executes the output only if the password is right. Wrong password if entered will generate a buzzer sound. Though this task can be performed by a single microcontroller, the project uses multiple microcontrollers to explain the concept of networking. It is practically impossible by a single microcontroller to handle input action, display and output which are located way apart.

For example, a display unit requiring 15 connections from the microcontroller needs to be managed using a multi core cable, similarly for a keypad using 7 connections. Thus, for large number of inputs and displays it would require multi core data cable to be connected to the MC running over kilometers, whereas this project uses a pair of wire only thereby reducing the complications in wiring and cost as well.

Further this project being based on serial communication can be enhanced by using wireless communication among the controllers by avoiding costly cabling

PROJECT HIGHLIGHTS
Easy to use, Self-explanatory kit.
All-inclusive solution kit.
Extensive audio-visuals available.
Branding-free material.
Pre-programmed Microcontroller.
Call/mail for Tech Support from 10 am - 7 pm.
Can be Customized for Arduino, Raspberry Pi, PIC
BLOCK DIAGRAM
Networking of Multiple Microcontrollers
Hardware Requirements
  • 8051 series Microcontrollers
  • Keypad
  • LCD
  • Relay
  • Transformer
  • Diodes
  • LED
  • Resistors
  • Capacitors
  • Regulator
  • Buzzer
  • Lamp
Software Requirements
  • Keil compiler
  • Language: Embedded C or Assembly
Q & A
Q:  What is the application of CAN system?
A:  CAN system is used for high networked embedded system, like Automobiles.
Q:  Which microcontrollers are used in this project?
A:  Three 40 pin 8051 microcontrollers are used in this project.
Q:  What is the formula for calculating smoothing capacitor value?
A:  There is some approximated formula .Peak to peak ripple voltage = Load current in amps / (2*line frequency in hertz *capacitance in farads). But as rule of thumb for 1 A current 1000uF is best. Thus it is load dependent.
Q:  What to do when the lamp fails and what is the maximum lamp rating that can be used?
A:  If the lamp fails one can use any lamp or bulb which is used in homes up to 100W. We suggest you to go for low watt bulbs.
READ WHAT OTHERS HAVE SAID
Average Rating
 4.7/5
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Showing 3 of 3 reviews
Nitish metha, Kalyan on 31st December, 2014, 11:03 AM

The kit delivered on time with all the components and even components are well tested.Your executive Mr.Samadhan explained about the project clearly while delivering the project & technical support is also good.By assembling the Hardware parts I learned a lot about it.I recommend this kit to my friends and juniors.I referred to my friend.

J Jyothika , Warangal on 27th September, 2014, 01:33 PM

I was searching in the internet and I found Edgefx is providing the project what I am looking for. So I decided to buy a kit from Edgefx.I like everything in my kit.

rajugoud, thurkapally on 14th May, 2014, 01:20 PM

am impressed hugely with the project I purchased. I bought DIY ,Iliked the PCB, audio-visuals and everything about the kit. The kit is perfect for students.

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