Automatic bathroom light circuit with back up lamp

Electrical Section

Engineering Department

Nizwa College of Technology

Ministry of Manpower

Project title:

Automatic bathroom light circuit with back

up lamp

Project Supervisor: S.Gobimohan

Semester: I Academic year:2018-2019

Level Diploma

Project done by students which is given below: S No Student ID Name of the Student Section(1)

1 22J16155 Mazin Said Rashid Al-Toubi

Electrical Power

2 72S1579 Waleed Khamis Said Al Jadeedi

Electrical Power

3 22S15191 Mahnad Abdallah Khalfan Al-Salmi

Electrical Power

4 72J16158 Abdul Aziz Khalifa Aziz Hedeb Al Shaqsi

Electrical Power

5 22S15208 Almamoon Ali Saleh Said Al-Abri

Electrical Power

ABSTRACT:

The circuit is built around binary counter CD4060 (IC2), which has a built-in oscillator

and 14 cascaded bistable multivibrators. The oscillator generates clock pulses based on

the values of resistors R3 and R4 and capacitor C3.

For the given values, Q13 output of IC2 goes high after 30 seconds of power-on. Resistor

R2 resets the IC for proper operation. The output of IC2 is fed to the gate of the SCR via

resistor R6 and LED2, which function as a voltage dropper as well as output status

indicator.

When the SCR gets gate drive, it fires to energise relay RL1. The latching function of the SCR

keeps the relay energised until the power to the circuit is switched off using switch S1. When the

relay energises, its normally closed (N/C) contacts break and light turns off.

The back-up white-LED lamp comprising LED3 and LED4 gives ample light in the event of

mains failure. It is powered by a 9V rechargeable battery, which is charged at around 200mA

current via diode D6 and resistor R7 when the circuit is switched on.

Circuit Diagram

https://electronicsforu.com/wp-contents/uploads/2016/05/CZ5_ZZB_1.jpg

Electrical Section




Project title: LED Roulette Circuit using 555 timer and 4017

counter

Project Supervisor: Dr. G. Sugumaran

Semester: I / 2018-19

Level Diploma

Project done by students which is given below: S No Student ID Name of the student Section

1 22J15315 Amjed Saoud Alrahbi Electrical Power /13

2 22S15167 Issa Saif salim Al Zakwani

3 22S1547 Murshid Nasser Abdullah Al Siyabi

4 22J15314 Waqas Mubarak Khamis Al-Mandhari

ABSTRACT:

LED roulette circuit is used for decoration in homes and shopping halls. It’s a casino

game named after the French word which means little wheel. As same, here we are making a

wheel (or circle) shaped led blinker. LED roulette circuit is a good alternative of old fashioned

LED roulette circuit, it can’t be biased or deformed. To create this LED roulette circuit, we have

mainly used 555 timer IC and 4017 IC. The main to build LED roulette circuit which uses 8

LEDs by using IC 4017 and a 555 Timer IC. In this 555 timer IC placed in Astable mode and IC

4017 which is decade counter IC and small needful components.

Block Diagram

CIRCUIT DIAGRAM

Electrical Section




Project title: Smart Foot Switch

Project Supervisor: Mr. M. Srinivasan


Level Diploma

Project done by students which is given below: S No Student ID Name of the Student Section

1 22S1468 Husam Said Al-Rashdi EE

2 22S15287 Mazin Ali Al-Katri EE

3 22S13257 Mohammed Bader Al-Aamri EE

4 22S14189 Mohammed Sulaiym ALAbri EE

5 22S14118 Salim Said Rashid Al-Mamari EE

ABSTRACT:

Such jobs as jewel cutting and polishing require the workers to switch on/off two

electrical appliances one after another repeatedly for two different services. Here’s a smart foot

switch based on dual negative-edge triggered master slave JK flip-flop IC 74LS76 (IC1). We can

place all the three switches (S1 through S3) where we can easily press them by foot when

required. The LEDs can also be mounted at a convenient location to know whether the devices

are turned on.

Circuit diagram of Smart foot switch

Electrical Section




Project title: Sensitive Optical Burglar Alarm Circuit

Project Supervisor: Sameeullah


Level Diploma


1 22J14182 Ahmed Zahir Salim Al Riyami EE

2 22S14122 Ammar Ali Hamed Al-Aamri EE

3 22S14183 Ibrahim Khamis Abdullah Al-Handhali EE

4 22J14133 Masoud Mohammed Masoud Al Subhi EE

5 22J14357 Mazin Mohammed Said Al Rahbi EE

6 24J1544 Nuh Mohammed Salim Al-Abdali EE

ABSTRACT:

In the past few decades, security peoples were hired to guard the areas. This is because of

the lack of effective security system of their homes and premises. House owners and industrial peoples

were invested descent amount for in order to provide security. It is therefore necessary to install the

burglar alarm system to monitor for any intrusion into the unauthorized premises. This project was

designed to secure at the residential and commercial cum industrial areas. This project consists of two

555 timer ICs. Both the ICs are wired as astable multivibrators. The first astable multivibrator built

around IC1 produces low frequencies, while the second astable multivibrator built around IC2 produces

audio frequencies. A Darlington photo transistor is used as a light sensor in our project.

Circuit Diagram

Electrical Section




Project title: QUIZ BUZZER CIRCIT USING 555 TIMER IC

Project Supervisor: Raghavendar Inguva Semester: I 2018-2019 Level Diploma – Electrical Power Engineering

Project done by students which is given below: S No Student ID Section

1 22s1512

Ibrahim Yaqoob Al-Adawi

EEPW2399

Section: 7

2 22s15168 Ahmed Khalfan Al-Mahrouqi

3 22s1546 Qais Said Al-Mahrouqi

4 22s15376 Mohammed Ahmed Al-Kindi

5 22j14212 Basel Mohammed Al-Salmi

6 22j15108 Ali Nasser ali

ABSTRACT

This project about Quiz Buzzer Circuit, the School/College quiz Buzzer circuit using 555

IC, we have used three 555 timer IC in bitable configuration. The important part is each 555 IC

will have their own stable state controlled by separate buttons which will be accessed by the

participants. Another single button controls the other stable state of the all the timer ICs in

common which is accessed by the organizer to reset the entire circuit. When any of the buttons

P1, P2, P3 is pressed the corresponding TRIGGER pin gets low and the timer shifts its stable

state and the output pin of the corresponding timer goes high. And the Green LED of

corresponding Participant turns on and buzzer starts beeping. In addition, if there is participate

already press the button; that mean no one can press after him.

Circuit Diagram

Electrical Section




Project title: Timer with Musical Alarm

Project Supervisor: Dr.N.Loganathan

Semester: 1 Level Diploma- Electrical Power

Project done by students which is given below: S No Student ID Name Section

1 22J13317 Mahmood Alhadhrami B-10

2 22S12360

Mohammed Alrwahi B-10

3 22S15345

Omar Alhadidi B-10

4 22J13224

Asad Alamri B-10

ABSTRACT:

The timer circuits are important things in industries, homes, offices to remind some of the

sequential functions. So the proposed project work mainly focused to design the simple circuit to gives

a solution for specified time interval with musical alarm. This timer circuit is a specialized type of clock

for measuring time intervals. It can be used for introducing a delay of one minute to two hours. After

the timing period is over, a musical song is heard. The circuit is built around popular CMOS oscillator.

It works off a 9 V battery by adjusting preset variable resistor, the time delay can be adjusted.

After time delay is over, output of 555 IC goes high and transistor conducts to provide positive power

supply to melody generator IC UM66. The output of melody generator is fed to the loudspeaker. Another

preset resistor is used to control the volume of the loudspeaker. The timer gets activated when power

is on and switch off the alarm, you need to switch off the power supply.

The project goal is to design a low cost automatic simple timer circuit to gives a solution for

specified time interval with musical alarm.

Circuit Diagram/Block Diagram

Block diagram:

Circuit Diagram:

Electrical Section




Project title: Light Operated Lamp Switch

Project Supervisor: Dr.N.Loganathan

Semester: 1

Level Diploma- Electrical Power

Project done by students which is given below: S No Student ID Name Section

1 22J1597 Ahmed Nasser Mohamed Al Hina B-6

2 22J15119 Sami Salim 'Abdallah Al 'Amri B-6

3 12J14382 Khalid Waleed Khalifa Al-Tobi B-6

4 22J15369 Abdul Malik Mubarak Marhoon Al Sulaimi B-6

5 22J15190 Malik MuslemKhalfan Al-Suleimani B-6

6 22S1469 Mohammed Issa Mohammed Al Rashdi B-6

ABSTRACT:

The light operated lamp switch project needs no manual operation of switching ON and OFF.

The system itself detects whether there is need for light or not. When darkness rises to a certain value

then automatically light is switched ON and when there is other source of light, the light gets OFF.

At day time resistance of the LDR low, the transistor Q1 conducting and Q2 will conduct and

gives positive trigger to the 555 IC. This results LED does not glow. When darkness falls the resistance

of LDR increases this makes the transistor Q1 OFF and Q2 conduct and turn on the 555 IC and make the

LED is glow.

By employing this circuit energy consumption can be reducing considerably as the switches ON

or OFF automatically in appropriate time. Moreover, errors which occur due to manual operation also

can be eliminated completely. It can be used for other purposes like garden lighting balcony lighting etc.

Circuit Diagram/Block Diagram

Block diagram:

Circuit Diagram:

Electrical Section




Project title:

Water pump controller circuit

Project Supervisor: S.Gobimohan


Level Diploma

Project done by students which is given below: S No Student ID Name of the Student Section(1)

1 22J1571 Mahmood Salim Hamed Al Khusaibi

Electrical Power

2 22S15309 SHIHAB HAMED IBRAHIM AL BAROOMI

Electrical Power

3 22S1564 AHMEAD MOHAMMED ABDULLAH AL RASHDI

Electrical Power

4 22S15299 MOHAMMED MUBARAK KHALAF AL-RAWAHI

Electrical Power

ABSTRACT:

A simple but very reliable and effective Automatic water pump controller circuit diagram is

shown here, which able to stop the motor pump automatic when tank is full. The circuit uses 1

transistor, 1 NE555 timer IC, a relay and few passive components. The circuit is completely

automatic which stop the pump motor when the water level in the overhead tank goes to a preset

(at top) level .Switches OFF the pump when the water level in the overhead tank goes to touch

with top level wire fitted in tank i.e the full level.

Connect the circuit diagram as shown in fig and use dc power supply by battery or adaptor to

operate this circuit. This circuit works well with 12v DC power. Two wires positioned as sensor,

one at the bottom level of the tank and one is the upper top level where required to before

overflow. Use 12v relay of min 25 Ampere load capacity. The circuit is easy to construction and

economical, high reliable.

Circuit Diagram

Electrical Section




Project title: STABILISED POWER SUPPLYWITH SHORT-

CIRCUIT IN-DICATION.

Project Supervisor: MOHAMMAD FAROOQ KHAN


Level DIPLOMA


1 22J14296 Nasser Marhoun Yousuf Al Busaidi POWER

2 22S1539 Al Waleed Jamal Sulaiman Al Aghbari POWER

3 72S15227 Khalid Ali Rashid Al Atabi POWER

4 22S15135 Humoud Saleh Issa Al Tubi POWER

5 22J15358 Ahmed Abdulah Al Ruqaishi POWER

ABSTRACT:

Stabilized power supply circuit with the facility of short-circuit indication. As we

know that stabilized power supply is used for testing various elec-tronics circuit

and is very important for electronics geek or hobbyist.

The circuit presented here is of 5-stage stabilized power supply unit and it provides

well-regulated output, which is essential for most electronics cir-cuit for proper

result. The another advantage of the circuit stabilized power supply with short-

circuit indication has it provides an audio-visual indica-tion if there is a short in

test circuit, and also cut-off the power supply im-mediately in order to save the

valuable components. The four regulated output (12v, 9v, 6v, and 5v) and an

unregulated output (18v) is obtained at its output and is selected by switch SW2

(rotary switch). The output taken is indicated by an analogue voltmeter connected

to the output rails as shown in circuit diagram.

Circuit Diagram

Electrical Section




Project title: Doorbell with Security Feature

Project Supervisor: MOHAMMAD FAROOQ KHAN


Level DIPLOMA


1 22J15323 HISHAM KHASIB MAHFOODH AL-

MAJIZI

POWER

2 22S15373 AHMED HAMED AHMED AL-WAAILI POWER

3 22J16235 Al-Moatasem Afan Khalfan Al-Ruqaishi POWER

4 22J16322 Malik Mohammed Khalfan Al-Saqri POWER

ABSTRACT:

This doorbell Security system works such that when someone presses your calling

bell switch during the night, not only the bell rings but the bulb connected to it also

glows. In order to turn the bulb off, just press the reset pushbutton switch provided

in the circuit. Place the bulb near the calling bell switch so that you can see the

person pressing the calling bell before opening the door. So you can choose not to

open the door to doubtful per-sons. During day time, the bulb doesn’t glow and only

the calling bell sounds.

Circuit Diagram

Electrical Section




Project title: High Gain DC - DC converter with dual coupled Inductor

Project Supervisor: Dr. G. Sugumaran

Semester: I / 2018-19

Level Advanced Diploma

Project done by students which is given below: S No Student ID Name of the student Section

1 22J1513 Ahmed Juma Al Subeihi 4

2 21S15218 Aflah Khamis Said Al Shukaili

3 22J15110 Ibrahim Sulaim Hamood Alghawi

4 22J15425 Khalid Mohammed Mattar al Mahrouqi

5 22S14220 Mohamed Hamed Khalfan Al Mahrouqi

6 22S147 Mohammed Saif Muhanna Al Abdali

ABSTRACT:

Use of renewable energy is increasing day by day. Among them solar power is abundantly

used nowadays. This results in the requirement of higher DC-DC voltage conversion for

increasing output. Due to the lower voltage gain of various step up converters available, the

efficiency of renewable systems is limited. This paper presents a switched coupled inductor

dc-dc converter with high gain of 10. The designed circuit is simulated by MATLAB

Simulink model and the results were compared with other related converters.

Block Diagram

CIRCUIT DIAGRAM

Electrical Section




Project title: Finger print door unlock using arduino

Project Supervisor: Dr.D.Vimalakeerthy


Level Advanced Diploma


1

22S1430

MARWA 'ABDULLAH SAFOUAN

AULLAD THANI

2

2 22J15399 Suha Said Hamed Al-Sulimani

2

3 22J15415 Suha Salim Saif Al-Saqri

2

ABSTRACT:

Security has been playing a key role in many of our place like office, institutions, bank, house

etc. Nowadays, at every point of time, we need security system to keep our belongings safe and

confidential and prevent those from unauthorized person could have an access on them.

Our project fingerprint door unlock system using Arduino can be very useful for door

security, forensics, crime investigation, personal identification, attendance system and much

more. The whole system works under a simple algorithm called matching algorithm, which is

used to compare previously-stored templates of fingerprints against users’ fingerprints for

authentication purposes. A key is normally used for traditional door opening, but it provides very

poor security. In this fingerprint door unlock project, only when an authorized person places a

finger on the sensor, the door unlocks.

Key words: Finger print scanning, Security locking, Solenoid control using arduino

Circuit Diagram

The circuit diagram is as shown below

Power Supply Circuit

Main circuit Diagram

Electrical Section




Project title: Automatic Room light controller using pir

sensor

Project Supervisor: Dr.D.Vimalakeerthy


Level B.Tech_I

Project done by students which is given below:

S No Student ID Name of the Student Section

1 22S13133 Khalid Hamed Khalfan AL Mahrooqi

1

2 22J14119 Moosa Ahmed Zaher Al Khusaibi

1

3

22S14261

SULTAN NASSER MOHAMMED AL-

SHEREIQI

1

4 22S13248 Saif Al-Dheeb Saif Al Saqri

1

ABSTRACT:

Automatic Room Light Controller using Arduino” is a reliable circuit that takes over the

task of controlling the room light automatically without manual switching. When somebody

enters into the room, PIR sensor senses the movement and operates the relay. Relay connected

to the light with control the lamp. The light will be switched OFF automatically if there is no

movement in the room. Arduino is used to control the sensor and the relay modules. PIR relay is

used to sense the movement. Arduino Uno is used for programming and hardware connection.

This project can be used for store room light control, parking light etc.

Key words: PIR Sensor, Automatic room light control, Arduino

Circuit Diagram

The circuit diagram is as shown below

Power Supply circuit

Power Supply Circuit

Main circuit Diagram

Electrical & Electronics Section




Project title: Industrial Helmet

Level Bachelor Phase-I

Semester: I

Project Supervisor: N.Murali


Description about the Project: Smart Irrigation System automatically detect and save the water in the farm land by using the

sensors like soil moisture, rain availability, temperature and humidity. The soil moisture used to

check the moisture of soil in the farm. The temperature and humidity sensor is required to

measure the environment of farm land. The rain sensor is used to detect the rain on the farm land.

In this project the testing of sensors is obtained to ensure proper working of sensor and

understand the working principle of sensors.

Batch No 3

Lecturer Mr. Murali

S.No Studuent ID Student Name

1 22S14281 Ahmed Salim Al-Jabri

2 22S14110 Amjad Juma Said Al-Ghawi

3 22S13159 Alhusain khamis Albusaidi

4 22S1463 Houd Nasser Yousuf Al-Rashdi

5 22J14189 Mohammed yaqoob Altobi

Result

Figure 4.3 output from serial monitor for soil moisture sensor

Figure 4.2 output from serial monitor for temperature and humidity sensor

Electrical Power Section




Project title: PRESSURE ACTIVATED LIGHT UP

UMBRELLA

Project Supervisor: Mrs. Pandimadevi ganesan



No. Student ID Name of the Student Section

1 22J15101 Kathya Saif Shaikhan Al Abri EP

2 26J1564 Al-Ghaliya Nasser Said Al-Hinaai EP

3 24J1529 Zainab Said Khalfan Al Naabi EP

4 22J15216 Qoot Alquloob Saif Hamid Al Shamsi EP

5 22J15374 Umayma Ali EP

Description about the Project:

The main goal of our project is to design a pressure activated light up umbrella. This project

solves one problem that at night and strong wind flow people can’t see but by glowing LEDs can solve

this problem. Pressure Activated Light Up Umbrella Using Arduino is programmed in three steps (input

pressure, programming in Arduino then output glowing. That project we designed PCB then get it out

to sold the component. like (Arduino, multiplexers /demultiplexers, resistors two types). Also we fixed

some component like (LEDs, piezo sensor ) in side umbrella . When rain water falls on the umbrella, the

LED will glow.

Keywords: Arduino, Piezo Sensor, Multiplexer, Demultiplexer etc.

Pictures

Electrical Section




Project title: Smart Glove for Deaf and Dumb

Project Supervisor: Mr. M. Srinivasan


Level B. Tech, Phase - II


1 22J14156 Al Anood Saoud Khalf Al Nabhani

EE

2 22J14153 Jawaher Salim Said Al Durai

EE

3 22J14166 Rasha Rashed Mattar Al Shukaili

EE

4 24J1422 Wadha Khamis Nasser Al Aamri

EE

ABSTRACT:

This project SMART GLOVE for DEAF and DUMB, mainly works as an interpreter,

converts hand gestures into text or voice or in commands. The SMART GLOVE needs to be

worn on the hand by the disabled and depending on the variation of the movements, the device

will convert it intelligently into voice and in a text. This message will be out from the speaker

and LCD display. The smart glove senses the movements through the flex sensors which pick up

the gesture made by the individual and then with the help of Arduino, that analog input is

converted into digital for various gestures. For every particular gesture there is specific digital

output and that digital output for specific gesture is reserved for specific message. So, when the

individuals do that particular gesture, the predefined message for that gesture is displayed on the

LCD along with word sound through speaker and that specific message is also transmitted in the

form of text or call with the help of GSM module to the various registered numbers.

Block Diagram:

Flex sensor 1

Flex sensor 2

Arduino

Speaker

GSM Module SIM900a Hand phone

16X2 LCD

Flex sensor 3

Flex sensor 4

Flex sensor 5

Electrical Section




Project title: IOT BASED WATER DISPENSER

Project Supervisor: SUBHRA DEBDAS

Semester: I 2018-19

Level BTECH-1I

Project done by students which is given below: S No Student ID Section

1 72S14307 Abdullah Ali Suwaidan Al-Henaei ELECTRICAL POWER

2 22S12241 Asad Ali Muslem Al-Hashemi ELECTRICAL POWER

3 PT22S168160 Mahmood Abdullah Saif Al-Saqri ELECTRICAL POWER

4 22S1198 Moosa Abdullah Salim AL Rahbi

ELECTRICAL POWER

5 22S13145 Saif Ahmed Mohammed Al Rawahi

ELECTRICAL POWER

6 PT22S168167 Salim Khamis Said Al-Jadeedi

ELECTRICAL POWER

7

22S1338 Sami Nasser Hamed Al Aamri

ELECTRONICS

ABSTRACT:

In day-to-day life, there are a number of water dispensers for providing drinking water. Such as in homes,

collages, offices and many other places. These dispensers are managed manually by a person, where a

person checks each of the dispensers individually and accordingly manages it. In order to fulfill

the drinking water and adjust the water temperature requirement a number of dispensers are placed

throughout the building. Thus, their management has become difficult. The purpose of technology

is to make our life easier. Therefore, with the advantage of technologies like Internet of Things (IOT)

we can change the way we do things in a better way. The management of water dispensers becomes smart

and easy using Internet of Things. In this project, the main concentration is to manage the water level and

water temperature. For that the project design as one Peltier system based digital water dispenser system

has been proposed NodeMCU will be used to control Peltier module for temperature control and water

management. One digital display unit will be adding to display total control unit. Also, in addition one

NodeMCU based water temperature will be implemented with the help of temperature sensors. And by

cloud computing IOT (Internet of things) will be helpful to adjust the temperature required. The

NodeMCU will have synchronized the temperature adjusted by cloud computing and controlling the

water temperature on tank. The technology Internet of Things (IOT) is an advanced and efficient solution

for connecting the things to the internet and to connect the entire world of things in a network. Here things

might be whatever like electronic devices, sensors and automotive electronic equipment’s. The system

deals with monitoring and controlling the environmental conditions like temperature, relative humidity,

light intensity and CO level with sensors and sends the information to the webserver page and then plot

the sensor data as graphical statistics. The data updated from the implemented system can be accessible

in the internet from anywhere in the world. Lastly, the main goal of the proposed system is to monitor the

water levels, water temperature and manage overall dispensers. It will provide faster, easier and cost

effective management. It also includes the design of monitoring system with advantages of low cost and

accuracy.

Block Diagram

CIRCUIT DIAGRAM

Documents

Automatic bathroom light circuit with back up lamp