Electronics Projects

Explore all electronics projects from simple electronics projects to high-end MCU and IoT projects. These projects belong to a wide range of categories such as Embedded, Power Electronics, Analog, Digital Electronics, Audio and Internet of Things. The below list of electronics projects contains 1200+ projects come under various electronics engineering domains. 

If you want more projects, you can also check out our collection at Arduino IoT Projects | Arduino Robotics Projects | Arduino AI Projects | Arduino Home Automation Projects | Raspberry Pi Projects | ESP32 Projects

Light fence circuit is used to detect the presence of any human or object in a particular area. The detecting range of Light Fence Circuit is about 1.5 to 3 meters. It’s quite simple to design the circuit using LDR and Op-amp. This portable circuit can work smoothly with a commonly available 9V battery and the alarm sound generated from the buzzer is loud enough to detect…

What if you could get an instant SMS alert the moment a fire or smoke is detected at home or office? Through this project tutorial, you can build a fire and smoke alarm system using Arduino UNO R4 that sends real-time SMS notifications. This means you will immediately get alerted even if you are far away.

In this Arduino Project, you…

Text-to-Speech, or TTS, is a technology that converts written text into spoken audio. It is commonly used in voice assistants, accessibility tools, alert systems, kiosks, and smart devices. On computers and smartphones, TTS works smoothly because these systems have enough processing power and memory to generate speech locally. Microcontrollers are different. They…

This project involves creating your own GPS tracker using the Xiao-ESP32-S3 microcontroller. Usually, making a GPS tracker needs extra parts like a SIM card, a GSM module, and other communication tools to send location data to a phone or computer. Building a GPS tracker with Seeed Studio XIAO has never been easier. But that’s not an issue anymore. At Circuit Digest,…

Stressful day? Deadlines, noise, overthinking, endless scrolling… sometimes the best thing you can do is pause everything and play a game. Games have always been more than just entertainment; they refresh the mind, shift our focus, and quietly reset our mood. When we play, stress doesn’t just reduce… it bursts. And let’s be honest, gaming isn’t just for kids anymore…

The LiteWing Drone Flight Positioning Module enables autonomous position hold capabilities using optical flow sensors combined with dead reckoning algorithms. This guide explores how to implement a fully autonomous position hold system where the drone takes off, hovers at a target height, and actively maintains its position in space without manual intervention. This…

Planning to buy a small voice recorder to record voices or sounds in an environment and store them in its memory? Think again! You can easily build your own voice recorder by following a few simple steps. This project focuses on building an Arduino Based Voice Recorder, which can also be abused as a spy bug. Our spy bug uses a small microphone…

In this guide, we focus on the WS2812B addressable RGB LEDs on the LiteWing Flight Positioning Module. The module includes four NeoPixel-compatible LEDs, each independently controllable via software. These LEDs are useful for flight status indication and visual debugging during development. A curated collection of hands-on drone projects with guides showing how to…

In this guide, we explore one of the most important sensing modules in the LiteWing drone, the Inertial Measurement Unit (IMU). While the IMU isn’t located on the Flight Positioning Module, it’s a core part of the flight controller, providing orientation, angular rates, and linear acceleration, forming the backbone of all autonomous flight behaviors.

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The LiteWing Flight Positioning Module uses the PMW3901MB optical flow sensor to measure horizontal motion relative to the ground. Instead of relying on GPS, this sensor tracks visual features on the surface beneath the drone and reports how those features move between frames. With the right processing, this information can be converted into velocity and approximate…

In this guide, we will explore how to implement a control system where you can command the drone's movement using keyboard controls (WASD keys), and when you release those controls, the drone automatically maintains its position in space. This creates an intuitive flying experience where you get the precision of manual control when you need it, combined with the…

In this project, we integrate the GP2Y0D810Z0F distance sensor to the Arduino UNO and display the detection result on the 16x2 I2C LCD screen and the Serial Monitor. The sensor is designed for quick on and off detection within a set distance of about 10 cm. This is great for detecting obstacles, sensing presence, and handling simple automation jobs. At the end of…