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This project is designed to develop a density-based, dynamic-traffic-signal system together with a remote override facility. During normal time, the signal timing dynamically changes automatically on sensing traffic densityata junction.

In the event of any emergency vehicle like ambulance, fire brigade, etc approaching a junction  require priority. So there should be remote control device to override the set timing by providing instantaneous green signal in the desired direction of the emergency vehicle while blocking the other lanes by a red signal for some time.

This proposed system uses the microcontroller of the 8051 family duly interfaced with sensors, which changes the junction timing automatically to accommodate movement of vehicles smoothly avoiding unnecessary waiting time at the junction.

The sensors used in this project: are IR and photodiodes kept in line of sight configuration across the loads to detect the density at the traffic signal. The density of vehicles is measured in three zones: low, medium, high based on which timings are allotted accordingly. Additionally a remote override feature is activated by an on-board Bluetooth device receiving commands from any handheld device like  a smart phone operated from the emergency vehicle.

The remote operation is achieved by any smart-phone/Tablet etc., with Android OS, upon a GUI (Graphical User Interface) based touch screen operation. 

Furthermore, this project can be enhanced by synchronizing all the traffic junctions in the city by establishing a network among them. The network can be wired or wireless. This synchronization will greatly help in reducing traffic congestion.


Easy to use, Self-explanatory kit.
All-inclusive solution kit.
Extensive audio-visuals available.
Branding-free material.
Pre-programmed Microcontroller.
Density Sensed Traffic Signal.
Remote Traffic Signal Override for Emergency Vehicles.
Call/mail for Tech Support from 10 am - 7 pm.
Can be Customized for Arduino, Raspberry Pi, PIC
Smart Phone Controlled Traffic Signal Override with Density Sensing System
Hardware Requirements
  • 8051 series Microcontroller
  • LEDs
  • Voltage Regulator
  • Resistors
  • Capacitors
  • Crystal
  • Diodes
  • Transformer
  • IR-LED & Photodiodes
  • Transistor
  • Bluetooth device.
Software Requirements
  • Keil compiler Language
  • Embedded C or Assembly
  • Android Application
Q & A
Q:  Which microcontroller is used in this project?
A:  The microcontroller used in this project is a 40 pin IC from 8051 family.
Q:  What are these blue and white color device used for?
A:  The blue and white color device is a preset, used as a variable resistor.
Q:  How can I install the Blue control App used for the project?
A:  Go to Google Play in your Android mobile search for Blue control App, select and install the blue control App.
Q:  How much distance does Bluetooth support?
A:  Bluetooth can support distance about 50 feet
Average Rating
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Showing 3 of 3 reviews
Arnab Borah, Guwahati on 8th July, 2015, 05:14 PM

I come to know about Edgefx while I was searching for wireless projects in the Google.I decided because the project seems to be suitable for final year project. I like the hardware part in my kit.Yes the kit delivered on time with the right components.No I purchased directly through online.No improvements.

Arnab Borah, Guwahati on 30th May, 2015, 04:29 PM

My friend has referred me about Edgefx.I like the report of the project provided in the CD.The kit got delivered in time with all the right components.I have given a call on the Toll free number for placing order and I received a Good support and instant service.No Suggestions.

Bhuvan Sardana, Pune on 30th May, 2015, 11:12 AM

I had known about EDGEFX through my friend.I have seen the out video on YouTube, I liked it and I purchased.The kit was delivered on time without any delay.I directly placed order through online.I am satisfied with my project.I will refer my friends.

Rating Breakdown (3 Reviews)

Edgefx Technologies Pvt. Ltd.,
Plot No. 105, 3rd Floor,
Liberty Plaza, Himayathnagar,
Hyderabad - 500029,
Telangana, India
© 2012 Edgefx Technologies Pvt Ltd. All Rights Reserved