Microcontroller Based Projects

Below section covers a list of simple microcontroller projects to learn and work with the concepts of various microcontrollers and architectures. These microcontroller based projects are covered with detailed explanation of working of hardware, circuit diagrams, software and codes.  

Microcontrollers are widely used in various industries, electronic products, automobiles etc.. to perform computing or logical operations. With this huge importance the demand of microcontrollers in industries is prominent and hence as electronics engineers it is important for us to learn how to use them. There are a large number of semiconductor companies manufacturing a variety of microcontrollers, the most popularly ones are 8051 microcontrollers, AVR microcontrollers, PIC microcontroller, TI Microcontrollers,  Arduino, Raspberry Pi etc.

By Affan Danish

The Story Behind CARE

While researching why people weren't buying air purifiers (beyond just the cost), we stumbled upon something fascinating: most people simply don't care enough about air quality. And that's exactly how CARE was born.

CARE is an…

By Ashwanth A, Muthiah Karthik S

HestiaGuard Smart Power & Safety System

HestiaGuard is a distributed home management and power‑control system built around ESP32 microcontrollers. The project combines environmental monitoring, electrical usage tracking, and centralized control to improve household safety and energy efficiency.

…

By Sumit Shingane

Rural Primary Health Centers (PHCs) often face staff shortages, making continuous patient monitoring difficult, especially during night shifts. Critical changes in patient vitals such as Heart Rate (HR) and Oxygen Saturation (SpO2) can go unnoticed, leading to delayed medical intervention.

…

By Yash Izate

A home is meant to be the safest place for a child, yet falls remain the leading cause of injury in domestic environments. Studies show that nearly 60% of home injuries in children are due to falls, with incidents from heights such as balconies, staircases, and windows being the most severe. Hospital reports indicate…

By shiva shankar P

Most existing home automation systems emphasize remote access rather than intelligent automation. Users are required to manually select modes, configure schedules, or control devices individually through applications. This approach makes the system reactive and increases operational effort. From a system design…

By Keshav Padia

Hi everyone!, my project is a standalone Smart Library Kiosk designed to replace the traditional librarian counter with a self-service system. Built on the Adafruit Memento Development Board (from DigiKey) with an ESP32-S3 chip, it runs independently-currently powered via laptop but easily adaptable to a 3.7V LiPo…

The Smart SMS Alert System using Seeed Studio Xiao ESP32 is one of the compact IoT projects that uses an HC-SR04 ultrasonic sensor to detect nearby movement. The system acts like a motion detector whenever something moves close to the sensor and crosses the set threshold. The ESP32 Seeed Studio module instantly triggers an SMS alert. The ESP32 can send real-time SMS…

In this guide, we will create a simple and precise digital clock using the  Raspberry Pi Pico RTC DS3231 Module through the Arduino IDE. We will use a 16x2 I²C LCD screen to display the information. Since the screen is small, we will write smart code that changes what is shown on the screen. For a few seconds, it will display the time and date, and then switch to show the temperature.…

Ever thought about how you could monitor the household energy usage of your home remotely without heavy hardware or a complex setup? To make this idea practical, we came up with this project: an IoT based Smart Energy Meter using MQTT with SMS alert.  Using the PZEM-004T sensor with ESP32, this smart energy meter using IoT provides real-time tracking of voltage…

In this section, we focus on one of the most immediately useful capabilities of the LiteWing Flight Positioning Module: precise height measurement using the VL53L1X time of flight sensor (ToF). Before implementing any control logic, it is essential to understand both the fundamentals of how the sensor measures distance and how the flight controller exposes this…

An automatic toll gate system using Arduino revolutionises traditional toll collection by eliminating manual intervention. The “automatic toll gate system project” demonstrates how simple sensors and a microcontroller can automate a real-life process like toll collection, making it an ideal project for school students and anyone just starting in the field of…

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,…

Have any questions?