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Engineering Projects For You

Free electronics projects, circuit diagrams and software codes available for students and hobbyists. Complete instructions on DIY electronic devices also available. These projects have been tested by EFY and are available with source codes. These are helpful with understanding concepts of electronics including basic components. The projects are designed to be helpful for engineering students and professionals building their own designs and circuits. The projects are also compiled from time to time to provide a single destination for project junkies. Let us know how you feel about the content and any thing you would like us to cover in the future. We hope you enjoy the content on this page!

Sensorless BLDC Reference Design

A reference design shows how BLDC motor control can combine back-EMF detection, speed control, protection, communication, and debugging functions. A reference design from NXP Semiconductors...

Computer-Vision-Based Robotic Arm

The system is designed to work like a roadside shopkeeper. When a customer places an order such as 1kg of apples, cameras connected to...

Bluetooth-Controlled Robot Using The STM32 Blue Pill

Building a robot is an effective way to understand embedded systems, control logic, and real-world electronics integration. This system demonstrates a Bluetooth-controlled mobile robot...

Pocket-Sized Thermal Camera Using AMG8833

Thermal cameras are used for PCB fault detection, solar-panel inspection, engineering thermal analysis, and body-temperature monitoring. However, good-quality thermal cameras are often expensive and...

On-Delay And Off-Delay Timers Using CD4050 And CD4049

Many devices, such as water pumps, exhaust fans, and geysers, need to run for only a limited period. Forgetting to switch them off can...

Embedded RF Antenna Suppliers: A Complete Guide For Indian Design Teams

From PCB and FPC antennas to custom RF solutions, Indian design teams have several options. Here is how to choose wisely. In modern connected products,...

Dual Sensorless Brushless DC Motor Drive Reference Design

A 24-V reference design controls two BLDC motors using different drive methods for pumps used in appliances and other equipment. Texas Instruments (TI) has a...

5 Interesting Reference Designs For USB-C Power And Charging

Explore USB-C reference designs for power delivery, battery charging, protection, and connections in electronic products. If you are planning to add USB Type-C power or...

16-Cell Battery Management Design 

Texas Instruments has released a 16-cell battery pack reference design with low standby power, accurate cell-voltage monitoring and protection features for high-capacity battery applications. Texas...

Raspberry Pi Pico Detector Catches Cosmic-Ray Muons For Under $100 

An open-source Raspberry Pi Pico detector counts muons from cosmic rays for under $100, bringing particle physics to the desktop. Cosmic rays constantly produce secondary...

Car/Auto Reverse Parking Security System With Audio-Video Alert

Parking safely in a garage or other confined space can be challenging, particularly when rear visibility is limited. Even a slight miscalculation while reversing...

Mesh-Controlled Swarm Robots For Thermal Surveys And Analysis

Mesh swarm robots offer a practical approach to collaborative robotics, with multiple autonomous units communicating, sharing information, and coordinating their actions to perform complex...

Electronic Pulse Waveform Monitor

The electronic pulse waveform monitor demonstrates low-frequency signal amplification, high-impedance matching, and analogue signal processing. Designed to operate from a low-voltage DC supply, the...

Needle 2 Runs Tool-Calling AI On Raspberry Pi 5

Needle 2 is a 45-million-parameter, 14MB model that turns plain-English commands into local Python function calls on a Raspberry Pi 5. A Raspberry Pi 5...

1kW Digital LLC Power Supply

Texas Instruments has developed a digitally controlled 1kW LLC reference design for server power supplies requiring high-speed load-transient response and a 12V output. Texas Instruments...

A Sub-₹100 iPod-Inspired Music Player Without an MCU

Back in the 2000s, the iPod was every tech enthusiast’s dream device. As engineers, we were always curious about how it was designed and...

Electric Vehicle Charging Controller Reference Design

What does an electric vehicle charging controller handle beyond power? This design combines vehicle communication, safety monitoring, and connector control. Designing an electric vehicle supply...

USB-C PD Reference Design Targets 96% Efficiency

A compact power platform combines GaN switching and digital control to improve USB-C charging efficiency, light-load performance, and system cost. The 140W USB-C Power Delivery...
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