How to make Metal Detector – Final Year Project

Hi friends, today we are going to build a very useful circuit which is Metal Detector. We all know about Metal Detector equipment which is widely used at security points. Same kind of Metal Detector we are going to build today. Our circuit is more powerful which can detect the presence of metal inside walls. If you want to drill a hole in walls, we can use this Metal Detector to check if there is any metal pipe like gas pipeline or water pipes, etc.

Features of Metal Detector:

  1. Detection Range: 8 cm (3″ approx.)
  2. Power supply: 9V Battery
  3. Power consumption: 30mA max.
  4. Output form: LED or/and Buzzer

Components required:

  1. Coils: It consists of two windings around the ferrite core. Winding L1 has 120 turns and winding L2 has 43 turns. We are using copper wire having 0.3mm thickness.
  2. Diode (D1): 1N4148
  3. Zener diode (ZD1): 3V9
  4. Resistors: R1=330Ω, R2=R3=470Ω, R4=2.7KΩ, R5=10KΩ
  5. Capacitors: C1=1200pF or 3300pF, C2=47nF
  6. Transistors: T1=T2=T3=BC547B
  7. LED (LD1): 5mm red
  8. Trim potentiometers: RV1= 2.5KΩ, RV2=100Ω
  9. Push button SW1

Circuit Diagram of Metal Detector:

Metal detector circuit diagram
Metal detector circuit diagram

Test and Adjustments:

  1. Connect a 9V battery to the circuit.
  2. Keep the circuit where there is no metal in the vicinity.
  3. Turn preset RV1 fully clockwise.
  4. Turn RV2 fully anti-clockwise.
  5. Depress the push button and hold it during the final adjustments.
  6. Now turn RV1 anti-clockwise till red LED goes out.
  7. Now turn RV2 clockwise until the red LED weakly lit.
  8. Now when metal comes in the vicinity of circuit red LED will be more brightly lit.

You can observe that we have one buzzer in the circuit. This buzzer is optional. If you want the output of the circuit in the form of a buzzer, you can connect the buzzer as shown in the diagram.

I hope you liked this article. If you have any queries, feel free to ask in the comment section below. Like our facebook page and subscribe to our newsletter for future updates.

Sending SMS from No Signal Area – Mini Project

Hi friends, in previous article we have seen Zigbee and GPS project which tracks a vehicle. Today we will build another innovative electronic project which will send a SMS from No Signal Area. There are many locations where we get poor range or completely no range. So using this embedded system we can send a SMS from such locations. The only condition we need here is, we should have a mobile network at the receiving end of Zigbee module.

This is low cost project and highly innovative. You can build such projects for your final year engineering submissions also.

Sending SMS from No Signal Area


The main objective of this micocontroller project is to send a SMS from No Signal area which is also known as Black Spot area using Zigbee and GSM module.



  1. 8051 family development board
  2. power Supply
  3. Zigbee modules
  4. GSM modem.
  5. Max232


  1. Embedded ‘C’
  2. RIDE to write code
  3. ISP to burn the chip

Block Diagrams:

Zigbee Transmitter Block Diagram

Sending SMS from No Signal Area Transmitter Block Diagram

Zigbee Receiver Block Diagram

Sending SMS from No Signal Area Receiver Block Diagram

Power Supply:

Power Supply


As already stated, this project is useful for creating signal, using GSM module we can send SMS through that signal to destination. In this project we are using two different frequencies. Zigbee has frequency 2.4GHz and GSM has frequency 1800 MHz.

Main circuitry of this project contains two embedded development boards. One contain Zigbee and Keypad and other contain Zigbee and GSM. We need to place first board in No signal (Black spot) area. Other development board which contains Zigbee receiver and GSM module is kept in area where there is mobile network.

When you type a message using keyboard and hit enter from No signal area, Zigbee transmitter will send a signal with message to the receiver end. Receiver end of Zigbee also has GSM module which will send that SMS to destination mobile.

Watch this Video:

I hope you liked this Project. Please share it with your friends and like our facebook page for future updates. If you have any queries please feel free to ask in comment section below. Have a nice day!


Final Year Engineering Projects for Instrumentation Engineering

Hi friends, in this article we will see some innovative project ideas. You can make use of these projects to build your engineering projects. These projects are specially for Instrumentation, electrical and electronics students.

In this post we will just discuss what type of innovative projects you can make for your final year projects. In upcoming posts we will see how we can build all these projects step by step.

Instrumentation Engineering Final Year Projects

Front Panel of Temperature Controller

1) RF Based Load Automation for smart home

Nowadays, modern houses and organisations are gradually shifting from conventional control system to centralised control system. This centralised control system make use of RF remote control to operate the equipment.

We can build this centralised control system by use of RF Transmitter, Receiver, micro controller, Encoder, Decoder, Switches and relays. This project costs near around 3000Rs – 4000Rs.

2)   Home Automation using TV Remote

This project looks very interesting and impressive as it involves home automation using our TV remote control. Infrared signals transmitted by remote control will get captured by sensor interfaced to control system. All the loads which you want to automate are connected to control system through relays.

Future scope of this project: You can enhance this project based on radio signal instead of Infrared signal of remote control. This will increase operating range so that you can operate equipment which are far away.

3) Recognition of Vehicle Number Plate using MATLAB

This is also one interesting project for Instrumentation Engineering students. In this project we are using just MATLAB so this project is also cost effective.

Here we capture the image of Vehicle number plate and by use of Image processing in MATLAb we can extract the data from that image. MATLAB will recognise the numbers from number plate and will show it as output.

4) Temperature control system using LabVIEW and Arduino

In this project we make use of LabVIEW and Arduino. To measure the temperature we can use any temperature sensor like thermistor, RTD, etc. We connect these sensors to analog pins of Arduino which will be interfaced to LabVIEW.

We can set our desired logics in LabVIEW to operate the heating elements. These heating elements are connected to arduino through relayes.

See also: Temperature controller using LabVIEW and Arduino

In upcoming posts we will see some more interesting projects for instrumentation and electrical engineering students. I hope you liked these project ideas. Like our facebook page and subscribe to our newsletter for future updates.

List of Final Year Projects for Instrumentation Engineering

Hello friends. It is very important to choose a good project in your final year of engineering. Your project should be attractive, innovative and more important is its output. If you successfully built a project and obtain its output you will definitely get good grades. So always choose a project for your final year which will be implementable (means you can get all its hardware), and you will be able to get its output.

Final Year Engineering Projects

Following is a list of Final year engineering projects for Instrumentation and Control Engineering students.

1) Machine Vision Based Object Sorting

This project is based on Machine vision. You can use a digital camera of your mobile or a separate camera for detecting objects. A conveyor can be used to move objects from one place to other. Whenever defective product or unwanted product is passed over particular point a camera will detect that product and will be sort out. You have to use LabVIEW or Matlab for image processing.

2) Temperature Control System using PLC

PLC is one of the core subject in Instrumentation and Control Engineering. So it will be impressive if you use PLC in your project. To built a Temperature Control System using PLC you can use RTD or Thermistor and a Heater. Whenever temperature rise above predefined level a coolant (water) can be circulated surrounding the tank. When temperature goes below set point a heater will get automatically on. You can use a PID controller for better controlling action than on off control. This is really a good final project for  Instrumentation and control Engineering students.

3) Automatic Bottle filling project using PLC

This is also a good project for fnal year. Its hardware is attractive and use of PLC in the project will impress your external. In this project you can use a conveyor for bottle (cups) passing. IR sensor will detect the presence of bottle. At the same time it will stop the conveyor. By generating a timer in PLC a Solenoid valve will start filling bottle. When timer is completed solenoid valve will be closed and conveyor will get start.

4) Automatic Irrigation System

This is an intersting project and involves measurement of soil moisture using Hygrometer. Hygrometer is easily available sensor or ebay or amazon.  Whenever soil moisture decreases a pump will get start and water will wet soil. Thus no need of human for watering plants or farm. You can use and arduino for analog reading and its digital output pins will operate pump on and off.

5) Home automation using PLC

In this project we can control home appliances like fan, Bulb, etc. using PLC. You can make use of Relays to connect home appliances with PLC.

6)PC Based Wireless transmission of process parameters

This is also a good final year project for Instrumentation and Control engineing students. In this project you can transfer readings of  process parameters like temperature, flow, pressure, etc. from one PC to other wireless. For this you can use ZigBee.

7) Auctioneeing Control System using LabVIEW

Auctioneering Control System

This is really a core instrumentation project. In this project you are going to control the temperature of sytem using auctioneering control system. It means measuring parameters at different location and control action will be taken based on most approriate reading. Same hardware as that of Temperature control system using PLC discussed above can be used. Except PLC you can use LabVIEW and Arduino.

You may also like:

  1. Final year engineering projects list 1
  2. Final year engineering projects list 2
  3. Final year engineering projects list 3

I hope these are ideas will help you for your final year engineering project. If you liked this website please like our Like our facebook page for future updates. Have a nice day!

Final year engineering projects list – 3

List of final year engineeeirng projects (List-3)

Final year engineering projects
Final year engineering projects

Here are another list of some innovative and useful final year engineering projects for final year engineering students. These projects are provided to engineering students for their project preparation. you can download any project which you like by just clicking on the link. 

To see the previous list of final year engineering projects click here.

List no:1

List no:2

101. Construction of touch panel based portable digital clock

102. Vision based obstacle avoidance and target tracking for autonomous mobile robot

103. Zigbee based intelligent helmet for coal mines

104. Design lk development of a gsm based vehicle theft control system

105. Artificial vision systems for blind man

106. Remotely controllable outlet system for home power management trough pc

107. Pc controlled spy robot using wireless webcam

108. Microcontroller based automatic pre paid electronic bus fare system

109. Electronic medical record for effective patient monitoring database

110. A prototype of an integrated blood pressure and electrocardiogram device for multi-parameter physiologic monitoring

111. A robot motion authoring using finger-robot interaction

112. Development of intelligent power wheelchair assisting for people on daily life using motion recognition

113. Remote home security system based on wsn and gsm technology

114. High heart beat alert to doctors using pom and gsm modem via short message

115. Remote notice board implementation using gsm communication

116. Application study of mine alarm system based on zigbee technology

117. Icu patient monitoring system with automatic sms system using gsmzigbee wireless technology.

118. Mems based automatic wheel chair movement for paralyses patient’s old age people.

119. Obstacle detecting system for vehicle collision safeguard

120. Finger print based money management system for atm backend operations.bus

121. Intelligent touch panel based access control mechanism for ubiquitous applications

122. Cost effective wireless attendance and access control system

123. Finger print based atm lk locker system for modern ban.

124. Smart wireless temperature data logger using zigbee 802.15.4

125. Dtmf mobile phone controlled dam water gates controlling system with high-level protection

126. Traffic signal light intelligent control system based on microcontroller

127. Intelligent fleet management system with concurrent gps lk gsm real time positioning technology

128. Automated vehicles for physically and visually challenged

129. Autonomous street lighting system based on solar energy and led’s

130. Monitoring of an aeroponic greenhouse with a sensor network,

131. Home automation using zigbee

132. Automatic street light controller with rtc

133. Density based traffic light control sytem

134. Dtmf based load automation

135. Embedded finalized list 2012

136. Fingerprint based bank locker system

137. Gps data logger

138. Gsm based advance home security system

139. Gsm based notice board with lcd display

140. Gsm based wireless electronic notice board

141.0bstacle detection and avoidance robot

142. Pc based wireless temp data logger

143. Pc controlled robotic arm control

144. Rf based load automation

145. Rf robot

146. Rfid based security system

147. Servo motor control system

148. Smart car parking system using microcontroller

149. Traffic light priority control system

150. Ultrasonic proximity detector abstract

151. Visitor counter

Previous list of projects

To see the previous list of final year engineering projects click here.



Search topics: engineering projects, instrumentation engineering projects, electronics engineering projects, electrical engineering projects.

Final year engineering projects list – 2

List of final year Engineering projects (List – 1):

Final year engineering projects
Final year engineering projects

We have already published 50 projects for final year engineering students in the last article. If you want to check that list click here

I am going to publish another 50 projects with abstracts for all final year engineering students which will help you in making your projects. Click on the link provided with the project list to download project.

51. Centralized secured voting system using finger print sensor

52. Vehicle supervision system based on mems geo sensor

53. Automatic college ringing bell management system using i2c protocol

54. Vehicle emission monitoring system using wireless technology

55. Automatic accident identification alert system using vibration sensor and rf technology

56. Examination room guide using rfid for the jumbling system based exams

57. Wi-fi based data acquisition system using rabbit processor

58. Advanced atm security system using gsm& mems

59. Zigbee based vehicle access control system

60. Remote weather station design using zigbee

61. Under water wireless control and transmission system based zigbee

62. Ethernet (web) based data acquisition and controlling and display on pc

63. Remote controllable and energy-saving room architecture based on zigbee communication

64. Applications of wireless sensor networks in the oil, gas and resources industries

65. Human recognition using rfid technology and stereo vision

66. Touch panel based advanced home automation system for next generation apartments using zigbee

67. Authentication and access control system for security personnel using i-button

68. Rfid based automatic highway toll tax collection system

69. Touch screen based digital slate for next generation elementary school children

70. Incomparable and intelligent traffic control system using ir and gsm

71. Touch panel based nurse attendant calling system for physically impaired

72.  Zigbee based attendance alert system with person details by using i-button technology

73. Electronic voting machine by using rabbit processor

74. Boarding school students monitoring systems (e-id) using radio frequency identification.

75. High secured password protected door accessing system using touch panel

76. An electronic voting system through touch screen interface

77. An automated stock price delivery system based on the gsm short message service

78. Gsm based prepaid energy meter for electrical applications.

79. Authorized home appliances control with i-button

80. Safety parsel courier system

81. Microcontroller based finger print access developed voting machine

82. Continuous indoor navigation with rfid and ins

83. Microcontroller and touch panel based wireless library book catalog system

84. Safety of valuable items by using zigbee and mems sensor

85. Two-way wireless data messaging system for rural areas using zigbee technology

86. Automatic detection of train arrival through an accelerometer using rf

87. Security integrated system based on wireless access protocol for industrial applications with sms alert system using gsm modem.

88. Messenger development without internet using zigbee

89. Deploying zigbee sensor network for vibration measurement

90. Autonomous light control by wireless sensor and actuator networks

91. Automated exam entry cancellation to the students who are late for the examination

92. Touch panel controlled motor speed and direction control system

93. The application of wireless sensor network design based on zigbee in petrochemical industry field

94. Metal detector robot control using zigbee

95. Remote sensing and control of an irrigation system using distributed wireless network

96. Automatic gsm sms passage to the parents if the student’s attendance is less than the required level using rfid technology

97. Wireless electronic notice board with multi nodes using zigbee communication system.

98. Remote monitoring system for oil wells based on gsm gprs technology

99. Password operated device control using mobile communication

100. Accelerometer based free fall or anti-slippage protection for hdd



Tags: list of engineering projects, list of engineering projects for engineering students, list of computer engineering projects.

Final year engineering projects list – 1

List of final year Engineering projects (List – 1):

Final year engineering projects
Final year engineering projects

In this post i have listed some of the important and innovative projects that are helpful for final year engineering students. Click on the link to free download the final year engineering projects and abstarcts. You can get another list of electronic projects in upcoming articles – click here.

1. Wi-fi based industrial automation and control using advanced rabbit processor rcm5600

2. Graphical representation of a vehicle tracking using unanimous software

3. Sending sms in black spot area in an innovative manner

4. Intelligent water dispenser based on embedded microcontrollers

5. Advanced accidental vehicles lifting robot to avoid the traffic jam

6. Voice based wireless icu patient medicine reminder for busy hospitals to save the patients

7. Modern restaurants atomization for wireless menu dish ordering using touch panel and zigbee

8. Dual -robots control communication system based on wireless zigbee network

9. Voice enabled route guide and warning system for blind people.

10. Ag robot for watering the plants in timely manner for tree to treeagrobot designed as plant watering system (mc)

11. Unmanned intelligent supervisory steering control using advanced ir transceiver

12. Wireless moving scrolling led display used as a notice board

13. Accident detection for release airbag using gsm, gps&mems using microcontroller

14. Internet based home automation using rabbit processor

15. Voice based bus stage announcement for rural people

16. Heavy luggage transportation in cities without interrupting the traffic

17. Touch screen based industrial device management system.

18. Supervisory management for financers using gsm and gps

19. Creating a single communication link between 2 wireless communications (ir+zigbee)

20. Dual touch panel based wireless data chatting using zigbee technology

21. A wireless solution system for tracking the stolen vehicles

22. Can protocol implementation for industrial process control

23. Intellectual atm card stealing information system through wireless

24.5tudent college alert system to parents by their entry at the college premises by using gsm sms

25. An innovative college bus information system to students using gsm

26. Front end operations for banking applications using high end security device

27. Innovative congestion control system for ambulance using zigbee

28. Accelerometer based transportation mode recognition on mobile phones

29. Boarder security and safety alert system using gsm

30. Can bus application in automotive network control

31. Wireless agricultural paddy field motor control for illiterate farmers

32. Touch panel based wheel chair for handicapped persons

33. Design of expandable conductivity temperature depth survey data processing system

34. Distributed remote temperature monitoring and acquisition system based on can bus

35. Gps-gsm integration for enhancing public transportation management services

36. Remote control of smart house hold based on dtmf.

37. Intelligent lighting control system for railway stations to save power

38. Embedded safety management for resident using wireless technology

39. The system design of monitoring abnormal environment parameter of vegetable greenhouse based on short message using gsm.

40. An intelligent mobile robot navigation technique using rfid technology.

41. Network intrusion detection system embedded on a smart sensor

42. Remote monitoring of building structural integrity by a smart wireless sensor network.

43. Touch panel based hot spot information kiosk using zigbee

44. Wireless sensor networks with embedded intelligence for agricultural applications

45. Application of zigbee for pollution monitoring caused by automobile exhaust gases

46. Relative location estimation of vehicles in parking management system (wi-fi)

47. Automobile anti-theft system design base on gsm and gps.

48. Finger print authentication for vehicle access system

49. Gsm based secured atm cash transactions with dynamic pin

50. Anti theft wireless alarm





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