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Top list of Latest Electronics Mini Projects Ideas has been published here for students. These are suggested by many experts for ECE and EEE students. So, now we are providing the list of the top electrical mini projects ideas in this page. As many engineering students are searching for the best electrical projects . Best Final year projects ideas for ECE students in various categories like embedded, electrical, robotics, solar, etc.. It includes major and mini projects also .

Street Lights that Glow on Detecting Vehicle Movement : This article describes about the circuit that switches the street lights on detecting vehicle movement and remains off after fixed time.

This system controls the street lights using light dependent resistor and PIR sensor.

So before using your IC, you may check whether your IC is good or bad by using this circuit. So with the help of this unique circuit, we do not need to move from one place to open and close the curtain.

Variable Power Supply and Charger : This is a circuit which helps to check or test your electronic projects and also to charge the Mobile phone batteries. This circuit can also work as an emergency light.

It will present an eye catching look as the LED initially travel in the one way and then travel reverse in the similar direction. Luggage Security Alarm : This is a simple alarm circuit which helps in ringing a warning alarm when someone tries to steal the luggage. This is accomplished using a capacitor based power supply.

This is a low cost and efficient circuit and can be used at homes. It is based on the principle of driving LEDs using the clock pulses.

Monostable Multivibrator Circuit Operation : Here is the monostable multivibrator circuit diagram and working. Multivibrator is an electronic circuit which will work as two stage amplifier operating in both stable and astable mode. Mains Operated LED Light Circuit : This is a simple circuit which is more useful to save our resources, energy and money by installing in your homes.

The basis of the whole circuit is an operational amplifier IC named LM Variable Voltage Power Supply from Fixed Voltage Regulator : This Voltage regulator circuit is used to get fixed voltage at the output without depending on the input voltage. It is mainly useful to music lovers.

Air Flow Detector Circuit : This Air flow detector circuit can be used to detect the flow of air in areas like car engine. It can also be used as temperature detector. Digital Temperature Sensor : The main principle of this circuit is to display the digital temperature value.

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These are mainly used in environmental applications. Digital Stopwatch Circuit : This is a simple circuit that displays count from 0 to 59, representing a 60 second time interval. It consists of a timer to produce the clock pulses and two counter ICs to carry out the counting operation. It produces different tones or sounds depending on the frequency range.

Low Power Audio Amplifier using Timer : This is a simple low power audio amplification circuit designed using timer. It can be used to develop low power music systems used in vehicles. The Atmega16 belongs to the AVR microcontroller family. Polarity cum Continuity Tester : With the help of this circuit, we can also identify whether the components we are using in our circuit are good or bad before mounting them on the PCB.

Reaction Timer Game Circuit : This is a simple and funny game circuit which contains 10 LEDs that are moving in an arbitrary fashion and we have to target a particular LED given by your challenger. You may also get detailed information about pin diagram and internal block diagram of NE timer.

This circuit can be mainly used in scoreboards. Two identical circuits are needed, one is for left and the other is for right.

Top 65 Electrical Mini Projects

The main heart of this circuit is timer. This flashing action performs continuously. This circuit uses timer and a decade counter. It can be used as doorbell.

With some modifications, it can be used to produce different sounds. Read this post for complete details. This saves the power consumption and is low cost. This circuit can be used in the museums to protect the valuable things. TV Remote Control Jammer : This proposed TV jammer circuit confuses the infrared receiver in a TV by producing the constant signal that interferes the remote control signal.

If you switch on the circuit once, the TV will not receive any command from the remote. This allows you to watch your own program without anyone changing the channel or volume. Super Sensitive Intruder Alarm : This circuit is designed to alert the user when an intruder enters into the home. If there is any obstacle in front of IR sensor, it generates an interrupt signal.

This interrupt signal is given to the speaker to alert the user. Using this remote, we can control the appliances within the range of meters. It is used for remote control applications like burglar alarm, car door alarm, calling bell, security systems, etc.

Final Year Projects for ECE

High and Low Voltage Cutoff with Delay and Alarm : This high and low voltage cutoff with delay alarm circuit is an advanced automatic voltage stabilizer circuit and is used to protect our home appliances. The circuit consists of timer IC as main component. Reverse Parking Sensor Circuit : If you are a new driver then it is very difficult to judge the distance while parking the car.

We can easily arrange this system at the back side of the car. This system charges from main supply and gets activated when main supply is turned OFF. This emergency lamp will work for more than 8 hours. One Transistor Electronic Code Lock System : The main principle of this circuit is that the door lock opens only when the buttons are pressed in an order.

The transistor and diode plays a main role in the circuit. Automatic Battery Charger : This charger automatically shut off the charging process when battery attains full charge. This prevents the deep charge of the battery. If the battery voltage is below the 12V, then circuit automatically charges the battery. This circuit can be used in security applications like when there is darkness on the LDR, it stops lighting.

Remote Operated Spy Robot Circuit : This is a simple spy robot circuit which can be controlled by the remote. The maximum controllable range is meters.

It is used to observe the behavior of wild animals where human beings cannot reach. Digital Voltmeter using Microcontroller : This is a simple digital voltmeter circuit designed using microcontroller. This circuit measures the input voltage from 0V to 5V. Ultrasonic Rangefinder using : This circuit explains you how to measure the distance using microcontroller. This ultrasonic range finder system measures the distance up to 2.

Stepper Motor Interfacing with Microcontroller : The main principle of this circuit is to rotate the stepper motor step wise at a particular step angle.

The ULN IC is used to drive the stepper motor as the controller cannot provide current required by the motor. Frequency Counter Circuit : Here we design a simple frequency counter system using two timers and two counters. While one of the Timer IC is used to produce clock signals, the other is used to produce the time limited signal of one second.

This system displays the digits from 0 to 9 continuously with a predefined delay. It is mainly used to measure value of a reactive element like a capacitor or an inductor. It can be use in modern warfare, protection from intruders or animals. Variable Power Supply and Charger : This is a circuit which helps to check or test your electronic projects at your workbench and also to charge the Mobile phone batteries.

This circuit is also very useful during power cuts blackouts as it can also work as an emergency light. It can be used in appliances that require 24 V DC supply like radios, lights, automobile electronics, special purpose UPS etc.

This circuit works on analog to digital conversion principle. The temperature can be displayed using an LCD. It can be used at homes, mobile places like cars to keep a track of the temperature. Cell Phone Detector : This is a simple circuit which helps to detect the presence of an activated cell phone by detecting the signals in the frequency range of 0. It helps in tracking mobile phones particularly in examination halls or important conferences. It can also be used to detect the mobile phones of spies or in case of unauthorized data transmission.

The radius of this detector is 1. Temperature Controlled DC Fan using Microcontroller : The main principle of the circuit is to switch ON the fan connected to DC motor when the temperature measured through a temperature sensor is greater than a threshold value.

This can be used in home applications particularly in CPU to reduce heat by automatically switching ON the fan. Stress Meter : This stress monitor lets you assess your emotional pain.

It can indicate three levels of stress: Relaxed, Moderate and High levels with the help of a series of LEDs combination of green, yellow and red. If the stress is very high, it gives visual indication through the LED display along with a warning beep. The gadget is small enough to be worn around the wrist. Bidirectional Photoelectric System : Photoelectric detectors are usually unidirectional i.

On the contrary, a system able to detect movement in both directions could be useful to control shops, rooms etc. If installed in a shop it could allow knowing if all customers entering the premises have left them at the end of the day.

Or, at home, it could be used to switch on the light or any other electric device when one enters the room and to switch off the electric device when he or she leaves it. Additionally it can be used to control the number of people as this circuit switches off the electrical device only after the last person leaves the area.

Self-powered Fast Battery-Tester : This circuit runs a fast battery test without the need of power supply or expensive moving-coil voltmeters. It features two ranges depending on the position of the switch. In one position, the device can test 3V to 15V batteries and when the position of the switch is changed, only 1. A set of LEDs are used to indicate the charge of the battery i. It boosts the FM reception by amplifying the weak FM signals. Self-Powered Door Bell Watcher : This very simple and self-powered device was conceived to allow a person to monitor if someone has rung his home door-bell when he was out.

The circuit must be simply connected to the two door-bell-coil leads. An LED or a buzzer or both can be used to indicate the event event is door-bell being pressed. It can store the event for a minimum of 15 days. It can be used for any mains supplied device like computer, television etc. Fridge Door Alarm : This fridge door alarm is a light sensing circuit.

It should be placed in the fridge enclosed in a small box near the lamp or close to the opening. When the door is opened, the light from the lamp or outside will fall on it and the buzzer goes off for a certain time and stops. This process repeats until the door is closed. This circuit is useful when the fridge door is not closed or it is kept open for a long time.

There are many systems that convert wind energy to electrical energy. A direct driven permanent magnet generator has been designed specifically for vertical axis wind turbine.

The generator maintains high efficiency and has high torque capability for the entire operational regime. Energy Leak Detector : This circuit is primarily used to detect draughts around doors and windows which cause energy leaks.

This circuit is essentially a temperature sensor and can be used where sensitive temperature detection is needed. It also has an adjustable duty cycle and can generally source or sink output currents up to m. The circuit consists of two comparators which drive an RS flip-flop, an output buffer, and a transistor that discharges an external timing capacitor. The actual circuit of an LM timer is also shown. The RS flip-flop is a digital circuit that will be considered in a later chapter. This turns the discharge transistor on and an external timing capacitor starts to discharge.

This output is usually a totem-pole circuit, or a simple buffer, and is generally capable of sourcing or sinking mA.

An external reset input to the RS flip-flop overrides all other inputs and is used to initiate a new timing cycle by turning the discharge transistor on. In the past, most resistors were manufactured from carbon composition, a baked mixture of graphite and clay.

These have been almost completely superseded by carbon or metal film resistor. Wire-wound resistors are used for comparatively low values of resistance where the precise value is important, or for high dissipation. They are unsuitable for RF use because of their reactance.

Mini Projects for Electronics and Communication Engineering Students

A capacitor is formed from a pair of conducting surfaces separated by a layer of insulator. A component that converts an electrical signal into light signal can be injected into the Fiber.

The three region is called emitter, base, and collector. The physical representation of the two types of bipolar transistors are shown in Fig; One type consists of two n regions separated by a p region PNP and the other consists of two p regions separated by an n region PNP. The PN junction joining the base region and the emitter region is called the base-emitter region. The junction joining the base region and the collector region is called the base-collector junction.This circuit can also work as an emergency light.

In this system, we use IR sensors to measure the traffic density. So an autoamted toll collection system was proposed here. It provides considerable amount of brightness required to do our daily tasks. Using this circuit, we can automatically charge a battery when its charge is below a threshold and the circuit is disabled when the battery attains full charge.

This circuit is primarily used to detect draughts around doors and windows which cause energy leaks. Lead Battery is a rechargeable battery and is more useful in our real life as it will dissipate very little energy, it has very low energy to weight ratio, it can deliver high current, can work for long time with high efficiency and is very low cost.

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