Top 37 Electrical Engineering Projects

Engineers are always in search of new electrical project ideas, and finding meaningful projects makes that search worthwhile. Listed below are the latest electrical projects for engineering students.

Many of them may deal with a higher power than electronics engineers are accustomed to, hence the emphasis on safety first.

These hand-picked innovative Electrical Projects are simple as well as interesting and contain a few small electrical projects too. EEE Students can use these as their final year project.

The list contains a total of 37 Electrical project Ideas for engineering students.

1. Dual Axis Solar Power Tracker System

This dual-axis solar tracker automatically adjusts a solar panel’s position to follow the sun throughout the day. Using four LDR sensors, an AT89S52 microcontroller, stepper motors, and a gear mechanism, the system continuously aligns the panel for maximum sunlight exposure. Compared to fixed solar panels, the tracker can significantly improve energy harvesting, making it an excellent project for learning about renewable energy, embedded systems, sensors, and motor control.

Check the complete Dual Axis Solar Tracker System project, including the circuit diagram, PCB layout, component list, and step-by-step implementation details.

2. 5V DC To 48V DC Converter

This project explains how to build a compact DC-DC boost converter that steps up a 5V DC input to 48V DC, making it ideal for powering phantom-powered condenser microphones and other low-current applications. The circuit uses a switching regulator design to achieve efficient voltage conversion while maintaining a compact footprint. It is an excellent project for learning about switch-mode power supplies (SMPS), boost converter topology, power electronics, and voltage regulation.

Explore the complete 5V to 48V DC Converter project with the circuit diagram, PCB design, component list, and a detailed explanation of how the boost converter works.

3. Electric Vehicle Battery Charging Solution

This project presents a practical EV battery charging solution designed to charge electric vehicle batteries efficiently while ensuring safety and battery longevity. It explains the charging architecture, key circuit components, and protection mechanisms required for reliable charging. The project is ideal for students, hobbyists, and engineers interested in electric vehicles, battery management, power electronics, and charging system design, offering valuable insights into the fundamentals of EV charging technology.

Learn how to design your own electric vehicle battery charging solution.

4. USB Power Electric Socket

This DIY project demonstrates how to build a USB power socket that converts a standard AC wall outlet into a convenient USB charging point for smartphones, tablets, and other USB-powered devices. The circuit integrates a compact AC-to-DC power supply to deliver a regulated 5V output while fitting neatly into a wall socket enclosure. It is an excellent project for learning about power supply design, voltage regulation, and safe AC-to-DC conversion, making it useful for home, office, and workshop installations.

Check the complete USB Power Socket project with the circuit diagram, PCB layout, component list, and detailed instructions to build your own USB charging outlet.

5. DIY Energy Meter

This project explains how to build a simple energy meter capable of measuring electrical energy consumption accurately for homes, laboratories, and small industrial applications. The design uses a microcontroller to monitor voltage and current, calculate power usage, and display energy consumption in real time. It is an excellent project for learning about energy metering, embedded systems, sensor interfacing, and power monitoring, while demonstrating the working principles behind modern electronic electricity meters.

Explore the complete Energy Meter project with the circuit diagram, PCB layout, source code, component list, and step-by-step guide to build your own electronic energy meter.

6. Joystick-Controlled Industrial Automation System

This project can be used to control up to four industrial electrical appliances with the help of a joystick and an Arduino Nano board.

Learn how to make this joystick-controlled industrial automation system.

7. Brushless DC Motor Driver

This electrical project demonstrates how to build a brushless DC (BLDC) motor driver for efficiently controlling the speed and operation of BLDC motors used in electric vehicles, drones, robotics, cooling systems, and industrial automation. The project explains the driver circuit, motor commutation technique, and control mechanism required for smooth, reliable, and energy-efficient operation. It is an excellent project for understanding motor control electronics, power switching, and embedded motor drive systems.

Check the circuit diagram of brushless DC motor driver.

8. HVDC Power Supply Design

This electrical project explains how to design and build a high-voltage DC (HVDC) power supply capable of generating stable high-voltage output for laboratory experiments, testing applications, electrostatic devices, and research projects. It covers the working principle, transformer selection, rectification, voltage multiplication, filtering, and safety considerations required when working with high-voltage circuits. The project is ideal for students and engineers looking to understand high-voltage power electronics and DC power supply design.

Check the complete HVDC Power Supply Design project.

9. Micro Inverter Electrical Project

A simple low-power inverter circuit is described here, which converts 12V DC into 230V AC. It can be used to power very light loads like night lamps and cordless telephones but can be modified into a powerful inverter by adding more MOSFETs.

Learn how to make this micro inverter.

10. Automatic Anchor Light

Federal and international regulations require boats to carry lights during sunset, sunrise, and in conditions with restricted visibility. The number and colors of light vary with the size of the vessel. A masthead anchor light is out of fashion as it is too high above the water level.

This makes it difficult to judge the position of the boat, especially in a pitch-dark anchorage.

This project is a compact yet inexpensive automatic anchor light integrated with an ambient light sensor that turns it on and off automatically.

See the complete automatic anchor light project.

11. High-Impedance Audio Buffer With JFET

The buffer circuit described here is useful in enhancing the AC input impedance of audio amplifiers used with pickups in musical instruments. Signal sources for amplifiers and passive pickups for electric guitars require a very high impedance of over 5-mega-ohms.

This can be achieved easily with a junction field-effect transistor (JFET), but may require a special design of the printed circuit board (PCB), appropriate construction techniques of the box, and proper cables and connectors.

This project provides a solution for a high-impedance, low-cost, low-quiescent-current, buffer-follower based on a PN4393 JFET.

Learn how to build this high-impedance audio buffer with JFET.

12. PIN Diode-Based Fire Sensor

This is an ultra-sensitive fire sensor that activates an alarm when it detects fire. In this circuit, a sensitive PIN diode is used as a fire sensor for longer-range fire detection. It detects visible light and infrared (IR) in the range of 430 nm – 1100 nm.

Visible light and IR from the fire activate the sensor to trigger the alarm. It also detects sparks in the mains wiring, and if these persist, it gives a warning alarm. The anode can easily be identified from the top-view flat surface of the photodiode.

A small solder point to which a thin wire is connected is the anode, and the other one is the cathode terminal.

Follow the complete step-by-step guide to build fire sensor.

13. Plus-Minus 5V Supply From 9V Battery

Op-amps require a dual-polarity supply for proper operation. When working with a battery supply, it becomes difficult to get a dual power supply for the op-amps.

Presented here is a simple circuit that provides ±5V from a 9V battery. This is one of the most interesting projects among Electrical Engineering Project Ideas.

Op-amps require a dual-polarity supply for proper operation. When working with a battery supply, it becomes difficult to get a dual power supply for the op-amps.

Check the guide to get plus-minus 5V supply from 9V battery.

14. Infrared Motion-Sensing Relay Switch

This project is designed for use with all kinds of medium-power automobile/domestic 12V DC loads. It is a simple solid-state relay (SSR) switch controlled by a standard passive infrared (PIR) motion sensor module.

A PIR sensor is an electronic device that can measure IR light radiating from objects in its field of view. Apparent motion is detected when an IR source with one temperature (such as a human being) passes in front of an IR source with another temperature (such as a wall).

The PIR sensor module, centered on a PIR sensor, has elements made of crystalline material that generates an electric charge when exposed to IR radiation.

Learn how to build the infrared motion-sensing relay switch.

15. Low-cost LPG Leakage Detector

The circuit for an LPG leakage detector is readily available in the market, but it is extremely expensive and usually based on a microcontroller (MCU). This project presents a low-cost LPG detector that you can build a circuit easily.

The main objective of the circuit is to detect LPG leakage anywhere. At the heart of the circuit is the dual comparator IC LM393 (IC2). It is used to compare two different voltages, in this case, the reference voltage and the MQ-6 gas sensor output voltage.

Learn how to build the low-cost LPG leakage detector.

16. Low-Cost Dusk-Dawn Controller

This dusk-dawn controller is built around a light-dependent resistor. The common battery supply is used for operating the circuit as well as for load, that is, for powering LED/small inverter circuits.

Resistors work as voltage dividers and current limiters in the circuit. LEDs are used as circuit deactivation indicators. An n-channel MOSFET is used for the switching action of an LED light.

Explore the complete circuit diagram and working of Dusk-Dawn Controller project.

17. Auto Power Switching Mains, Solar Inverter, or Generator

This project is based on the AEIOU heuristic framework of the Design Engineering Approach. Design for Performance, Safety, and Reliability is ensured in terms of switching modules.

Design for Ergonomics and Aesthetics is ensured in terms of the Priority set by the user regarding the availability of the Power Source.

Design for Manufacturability and Assembly is ensured in terms of the Generator, Inverter, and Solar Plates.

Also, based on choice and availability, different circuits using Eagle can be worked upon.

Learn how to auto power switching mains, solar inverters, or generators.

18. Signal Generator and Inverter Using NE555 Timers

Often we require a squarewave signal generator with adjustable frequency, almost equally high and low output pulses, and adjustable amplitudes.

Here we present a simple, useful, and low-cost signal generator built around NE555 timers. Using external switches, you can control or select frequency ranges as per your requirements.

Learn how to build this signal generator and inverter.

19. Configurable RS232 to TTL to I2C Adapter

This DIY project demonstrates how to build a configurable communication adaptor that supports RS232, TTL UART, and I2C interfaces in a single compact device. Designed for embedded systems development, debugging, and prototyping, the adaptor enables seamless communication between microcontrollers, sensors, and serial devices by allowing users to switch between different communication standards. It is an excellent project for learning serial communication protocols, interface conversion, and hardware debugging, making it a valuable tool for electronics enthusiasts and embedded engineers.

Check the full project guide.

20. Vibration-Activated Smart CRO Probe

This is a simple, low-cost, energy-saving, and device-saving circuit for an electronics lab, service center, electronics workshop, or wherever a CRO is in use. Generally, in a repair station, a CRO is used for a very short time. But in most cases, the user fails to switch off the CRO immediately after use.

The service engineer mostly concentrates on faults rather than noticing whether the CRO is on or off. A vibration sensor turns the CRO off when the probe is idle for a specified amount of time.

Check how to build this vibration activated smart CRO probe.

21. 4 Channel Multi-mode Audio Amplifier

Sometimes we need configurable multichannel amplifiers for experiments or for use in offices or schools. Here is a project based on TDA1554Q, configured for multi-mode functions with four-channel outputs. It has four channels, and each channel can provide around 11W over a load of 2 ohms and around 6W over a load of 4 ohms.

The circuit will also work with loads of 4 ohms to 16 ohms. The gain of each channel is fixed at 20dB in single-channel mode and 26dB in BTL mode.

Learn how to build this multi-mode audio amplifier.

22. Design and analysis of a single-stage amplifier using C++

Many formulae are required to calculate the parameters involved in a circuit of a transistor-based audio amplifier. Some of these values involve resistors, coupling capacitors, bypass capacitors, power consumption, and the current flowing through different components.

A good amount of time is required to calculate such parameters, even with a regular calculator. Using a C++ program, all the parameters can be calculated in a fraction of a second.

This project presents a single-stage transistor audio amplifier that requires a total of 19 formulae to obtain the values of components and analyse the circuit.

Learn how to do design and analysis of single-stage amplifier using C++.

23. Four-channel Video and Audio Sequencer

This next project is a simple circuit for switching your CCTV camera outputs sequentially. It switches four video and audio channels sequentially, one at a time. It is built around a 555 timer few other components. The timer is configured as an astable multivibrator.

A single-sided PCB of the four-channel video and audio sequencer is provided along with the component layout. After assembling the circuit on the PCB, enclose it in a suitable plastic box.

See how to build this four-channel video and audio Sequencer.

24. Automated USB-controlled Power Switch

Power for TV and set-top box (STB) is derived from a common switchboard. The switched-mode power supply (SMPS) of the TV continues to draw a small amount of power from the mains and the STB is not switched off when you switch off the remote.

This project presents a circuit that can control the main power of an LED TV and the DTH STB. It also protects the devices from harmful initial surges when the power comes back after a power failure.

Explore how to build this automated USB-controlled power switch.

25. 1kW Sine Wave Inverter

An inverter provides power backup for mains-based appliances in the event of a power failure. Most of the inverters available in the market have complicated circuit designs and are not very economical. Some of them produce a square-wave output, which is undesirable for inductive loads.

This project presents a simple inverter circuit that produces a 50Hz quasi-sine-wave output using a single IC CD4047 and some discrete components, making it a very cost-effective solution.

Check the complete circuit diagram and working principle for 1kW sine wave inverter.

26. Four Frequency Generator

There is a need for TTL and CMOS signals from stable frequency sources for the development, testing, and maintenance of digital and analog electronic circuits. These sources are also useful for fast-checking oscilloscopes, probes, multimeters, frequency meters, and other measurement equipment.

This project proposes a circuit that produces fixed frequencies of 4MHz, 6MHz, and 10MHz and adjustable square waves with variable frequencies from around 10Hz to more than 100kHz.

Check how to build 4 frequency generator.

27. Programmable 3-Phase Controller

A programmable time switch is useful in designing an automatic on/off controller for the 3-phase electric motor. This next project proposes a system with two programmable time switches for setting the starting and stopping times of the motor.

Two control circuits interface with the start/stop switches of the 3-phase motor starter. There is a provision for setting days of the week for the controller to function as well.

Learn how to build programmable 3-phase controller for ON/OFF motor.

28. High Power LED Stroboscope

A stroboscope is a convenient and accurate instrument to measure the speeds of rotating objects in homes or industries. One can use it to find the speed of fans, motors, or any other rotating object.

It is a flashing light that provides sharp light pulses at a variable rate. An object rotating with a frequency matching the pulsed light is observed as stationary.

Learn how to build this high power LED stroboscope.

29. Password-Based Circuit Breaker

A circuit breaker protects electrical circuits from damage in case of overload or short circuit. Its basic function is to detect a fault condition and interrupt current flow. The system uses an 8-bit microcontroller of the 16F877A family.

An EEPROM stores the password and is easily changeable. The password is entered through a keypad, and a relay opens or closes the circuit breaker, which is indicated by a lamp.

Learn how to build this password-based circuit breaker.

30. Over/Under Voltage Protection of Electrical Appliances

Presented here is an under/over-voltage protection circuit that protects refrigerators as well as other appliances from under & over-voltage. The operational amplifier IC LM324 (IC2) is used here as a comparator.

Check the complete circuit diagram for the over/under voltage protection of electrical appliances.

31. DC Panel Meter using Arduino

Panel meters in regulated power supplies are used to display electrical parameters like voltage and current. Presented here is a circuit to display the DC voltage and current of power supplies, including DIY-type ones.

Learn how to build this DC panel meter using Arduino

32. Multi-Status Indicator Using Single RGB LED

The monitoring system in battery chargers, water-level indicators, etc., uses LEDs to indicate the status of certain conditions. Presented here is a multiple status indicator circuits that use a single RGB LED for seven different indications.

Check the complete guide for multi-status indicator project.

33. Simple Low Power Inverter

Here is a simple, low-power inverter that converts 12V DC into 230 – 250V AC. It can be used to power very light loads like window chargers and night lamps, or simply give a shock to keep intruders away. The circuit is built around just two ICs, namely, IC CD4047 and IC ULN2004.

Learn how to build this simple low power inverter at home.

34. Power-Saving Relay Driver

In many circuits, the switching action is performed by a relay, which in turn activates an external load. The power consumed by the relay may be unsuitable for battery-powered system applications.

Here is a simple solution using some inexpensive components to considerably save power.

Learn how to build this power-saving relay driver.

35. Automatic Water Pump Controller

Here’s an automatic water pump controller circuit that controls the water pump motor. The motor gets automatically switched on when the water in the overhead tank (OHT) falls below the lower limit.

Check the complete circuit diagram of automatic water pump controller.

36. Mobile Cell Phone Charger

This mobile cellphone charger uses three NiCd cells or eight pencil cells to charge the battery connected to the output terminals.

Learn how to build this mobile cellphone charger.

37. Generate Power Using Microturbine

Presented here is the Hydropower Generation circuit that generates power from a water pipe in a building using a microturbine. The generated electricity can be used to charge batteries, which can be used for emergency lighting or other such purposes. The microturbines produce kinetic energy, which in turn helps in Power Generation (Electricity).

Learn how to generate power using microturbine.

Hope these electrical engineering project ideas were useful to you. If you have such interesting electrical project ideas, feel free to post them in the comment section below.

This article was first published on 18 October 2016 and was recently updated in May 2025.