IoT Projects using Arduino – TOP 10 IoT projects in 2025

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IoT projects using Arduino

Last updated on February 11th, 2025 at 11:28 am

Through this post, you’ll learn how to make some of the top IoT Projects using Arduino. The easy-to-understand content of this blog will give you a good idea of the basic concepts and applications of IoT. All the IoT projects using Arduino mentioned in this post are selected based on the application, implementation, and complexity involved.

Before heading on to the projects, let’s first understand what’s IoT. The Internet of Things or IoT implies the interconnection of various electronic devices through the internet, continuously monitoring, tracking, sharing, or collecting data. The emergence of IoT has helped mankind take a giant leap forward.

First of all the sensors, processors, and communication hardware help us to collect the data. This collected data is then sent to the cloud to be looked over. Finally, the device/sensor makes the required adjustments per the analyzed data.

This way IoT creates an environment for effective resource utilization to minimize human effort which ultimately saves time and improves security.

With all the above things considered, here we present the Top 10 selected IoT projects using Arduino.

Smart Bin

Smart Bin using Arduino UNO IoT project
Smart Bin using Arduino UNO

Objective

This is an innovative project that operates efficiently to provide a solution to disposing of garbage problems using IoT and mic sensor circuits. The ultrasonic sensor continuously monitors the garbage level in the bin. When the bin is full, the circuit raises an alarm and alerts the user, so that the user can be empty and reuse the bin again.

The components required for the project are:

  1. Arduino Uno
  2. Ultrasonic sensor
  3. Mic sensor
  4. Wi-Fi module
  5. Capacitors
  6. Resistors
  7. Transistors
  8. PCB and breadboard
  9. Cables and connectors
  10. LED
  11. Transformer/Adapter

Link to the project: Smart Bin

Weighing scale

 
Weighing Scale made using Arduino
Weighing Scale made using Arduino

Objective

Using this project, we can measure and monitor weights from any part of the world. The load cell (strain gauge) used here is 5 kg. A to D converter converts the physical weight to corresponding digital signals and sends it to the owner with the aid of Arduino.

The components required for the project are-

  1. Arduino Uno
  2. Load cell (Strain gauge)
  3. Wi-Fi module
  4. Transistor
  5. Resistors
  6. Capacitors
  7. Analog to digital converter

Link to the project: Weighing scale

Gas Detector

Gas Detector Project
Gas Detector Project

Objective

A simple and economical project that alerts the user if there is any gas leakage in household premises.  The gas sensor in the circuit detects quickly senses the butane gas which triggers an alarm in the circuit along with the message signal sent to the owner over the internet.

The components required for the project are:

  1. Arduino Uno
  2. Wi-Fi module
  3. Gas sensor
  4. Connecting wires
  5. PCB board
  6. Buzzer
  7. Switch

Link to the project: Gas Detector

Food spoilage detector

Food Spoilage Detector IoT project
Food Spoilage Detector

Objective

This project regularly tracks and monitors the quality of food in our household. The gas sensors sense the smell of spoiled food and relay a message to the Arduino. Arduino flashes the message on the LCD display that the food is spoiled. Along with this, the owner also receives a message for the same.

The components required for the project are:

  1. Arduino Uno
  2. Wi-Fi module
  3. Gas sensor
  4. LCD display
  5. Power supply
  6. Alarm
  7. Connecting wires

Link to the project: Food spoilage detector

Attendance system

Arduino and ESP32 based attendence system IoT project
Arduino and ESP32-based attendance system

Objective

This project demonstrates a smart way for the attendance system. The RFID scanner scans the RFID cards and logs the data to a cloud platform with the help of the Wi-Fi module hence recording the attendance of the student to whom the card belongs. You can check the recorded attendance on the internet at any time.

The components required for the project are-

  1. Arduino
  2. Wi-Fi module
  3. RFID scanner
  4. Breadboard
  5. Connecting wires
  6. RFID cards

Link to the project: Attendance system

Tech Arm

Tech arm built using Arduino
The tech arm built using Arduino

Objective

This project demonstrates a robotic arm with universally accessible control. The project is suitable for places where human reach is difficult or not possible. With the record and repeat mode, the same task can be performed over and over again with the same efficiency and speed.

The components required for the project are-

  1. Arduino
  2. Wi-Fi module
  3. Servo motors
  4. Motor driver
  5. Connecting wires
  6. Holding clamp
  7. Indication LED

Link to the project: Tech Arm

Water quality monitoring

Water management system
Water management system

Objective

This project regularly monitors and tracks the pH value of the water and fitness of the water. The range of pH between 7.2 and 7.8 is considered fit for drinking purposes. The pH value of water is periodically updated to the owner over the internet.

The components required for the project are

  1. Arduino
  2. pH sensor
  3. pH meter
  4. Wi-Fi module
  5. Connecting wires
  6. Transistor
  7. Capacitors
  8. LED
  9. Resistors

The link for the project: Water quality monitoring

Car Parking System

Car parking system
Car parking system

Objective

This project demonstrates the use of an IR sensor to monitor free space in the car parking area regularly. As soon as a vehicle comes within or leaves the proximity of an IR sensor, the information is sent via the internet to the authority and hence the vacant and filled parking slots can be known at any time.

The components required for the project are

  1. Arduino
  2. IR sensor
  3. Wi-Fi module
  4. Power Supply
  5. Connecting Wires

The link to the project: Car Parking System

Health Monitor

Arduino based health monitoring IoT project
Arduino-based health monitoring system

Objective

It’s a simple and economical project to monitor a person’s health remotely. The temperature sensor senses the temperature of the human body while the pulse sensor measures the contraction and relaxation of the blood capillaries. Both these data are uploaded and stored on the cloud. A doctor can easily access this data from anywhere. 

The components required for the project are-

  1. Arduino
  2. Wi-Fi module
  3. Pulse sensor
  4. Temperature sensor
  5. LCD display
  6. Resistors
  7. Breadboard
  8. Connecting wires
  9. LED

The link for the project: Health Monitor

LPG detector and auto exhaust

LPG detector with auto exhaust IoT project
LPG detector with auto exhaust

Objective

This project demonstrates a smart way to tackle the gas leakage problem. The gas sensor quickly senses any leakage of gas and according to the level of gas as low, normal, or high takes corresponding steps simultaneously by notifying the owner and turning ON the exhaust fan. The exhaust fan turns OFF automatically as the gas level falls.

The components required for the project are-

  1. Arduino
  2. Wi-Fi module
  3. LCD
  4. DC fan
  5. PCB
  6. Capacitors
  7. Resistors
  8. Adapter
  9. LED
  10. Connecting wires
  11. Buzzer
  12. Transistors

The link for the project: LPG detector and auto exhaust

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Kanishk Godiyal

I have a keen passion for learning and understanding various concepts of electronics. Combining my knowledge with my SEO skills, my aim is to make electronics easy for every tech enthusiast out there.

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