Top 6 Raspberry Pi IoT Projects You Should Try Today [2021]

Raspberry Pi is a small computer that you can use as anything, from a router to a gaming console. Its versatility makes it perfect for IoT projects, which we’re discussing in this article.

Raspberry Pi can help you create an autonomous irrigation system as well as a face recognizing robot. We’re combining it with the Internet of Things and exploring how the two of them can lead to amazing projects. 

The Internet of Things, also known as IoT, is one of the most powerful technologies of recent times. It allows you to use the internet for controlling appliances and tools, which you couldn’t have used through the internet before. Autonomous systems and smart switches are some great examples of IoT applications in real life.

If you’re interested in developing IoT-based solutions, then you’re at the right place. Here, we’re discussing some of the most exciting Raspberry Pi IoT projects. Our list contains projects of various skill levels and sectors so you can choose one according to your interests and expertise. 

Top Raspberry Pi IoT Projects

1. Estimate Crowd Sizes and Fight the Virus

The current pandemic has changed our world completely. We are adapting to these new changes by incorporating different technologies and habits into our lifestyles. If you want to build a solution to fight this pandemic, then you can work on this project. 

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In this project, you’d build a Raspberry Pi solution that can estimate crowd sizes. We all know how crucial social distancing is. By determining the crowd size in a particular place, you can understand if people are social distancing properly or not. You can then use this technology in public places and help the authorities in enforcing social distancing guidelines with higher effectiveness. 

To estimate crowd sizes, your system should perform object detection. Object detection is a concept of Artificial Intelligence where your system can recognize particular objects present within an image. Apart from Raspberry Pi, you’ll need a Pi Camera, Python, and OpenCV too. After you’ve completed this project, you’d be familiar with real-life applications of object detection and AI. Moreover, you’d know how you can use technology to fight the pandemic. If you’re already familiar with the basics, then you can make it more challenging by adding more functionalities to it. 

2. Smart Energy Monitor Based on IoT

Energy monitors are devices that show you how much energy a particular appliance (or appliances) is consuming. With this information, you can keep your energy consumption in check and make any adjustments if necessary. An energy monitor can help you in reducing the waste of energy and assist you in saving the environment. 

So, if you’ve ever wanted to use your tech skills to build solutions for the environment, this is a great project for you. Before you begin working on this project, you should know that you’ll have to work with an AC supply, which is dangerous. So, follow all the safety precautions before starting your work on this task. 

Here, you’ll build a smart energy monitor based on Raspberry Pi. Your energy monitor would have the following components:

  • A current sensing unit
  • ADC
  • A voltage sensing unit
  • Adafruit.IO
  • Raspberry Pi

The current and voltage sensing units would provide your system with the required input. You can use any current sensor that can work with Raspberry Pi. The voltage sensing unit and the existing sensing units comprise the input section, whereas the ADC and the Raspberry Pi constitute the processing unit. To store our findings (the output) we are using Adafruit.IO. It would save all this information on the cloud. So you can access this data from anywhere in the world at any time.

3. Build a Wi-Fi Range Extender With Raspberry Pi

Everyone faces the issue of ‘limited range’ when using Wi-Fi routers or devices. Wi-Fi routers don’t necessarily cover a big radius, and if you go out of that range, you start facing connection problems and eventually lose the connection completely. 

You can expand the coverage radius of your Wi-Fi device by using a Wi-Fi extender. In this project, you’d build one of these. 

It is one of the best Raspberry Pi IoT projects for the enthusiast of electronics communication. As it is an Internet-of-Things project, you’d be able to use the extender remotely, and you can automate it as well. To work on this project, you’ll need Nodemcu ESP8266. It is an IoT development platform that has Arduino’s features and a Wi-Fi module as well. You can use the Arduino IDE by connecting it with a USB interface and program it accordingly. 

To use ESP8266 property, you’ll need to download its Flash Download tool from its website. It would allow you to configure your ESP8266. After completing this project, you’d be familiar with many concepts of IoT and electronics communication. It is among the beginner-level projects so if you haven’t worked on an IoT solution before, and you should start here.  

Read: IoT Engineer / Developer Salary in India

4. Create an IoT-Based Agricultural Solution

We hear about the applications of technology in homes and offices, but in this project, you’ll build a solution for a garden (or a farm). Here, we’ll use Raspberry Pi to create an agricultural solution. It would monitor the moisture level in the soil and water it automatically. So, if you maintain a garden (whatever the size maybe), you’d like this project particularly. It would help you in keeping your garden and remove a lot of your hassles. 

You’ll need a relay module, an Arduino, a soil moisture sensor, a pair of a pipe and a hose, a Bluetooth Hc 5, a solenoid valve, and wires. This project is a great way to learn how you can use IoT in real life and automate mundane tasks. You can start with a small potted plant, and after you’ve implemented the system successfully, you can move onto a bigger garden or a group of potted plants. 

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5. Develop a Face Recognizing Robot with Raspberry Pi

Face recognition is an AI-based technology in which a computer recognizes a face by analyzing its features. Face recognition has become prevalent in modern devices, and you must’ve seen its application on multiple places such as smartphones and social media. If you’re familiar with this concept and want to implement it in a robot, then you can do so through Raspberry Pi.

It is among those Raspberry Pi IoT projects which require a little extra effort. However, once you’re finished, the result would be worth it. Also, you should know about Arduino, Raspberry Pi cameras, and robotics before you begin working on this project. 

You’d need an amplifier, USB data cable, a power adapter, servo motors, and a robot head (you can use INMOOVE). You should also be familiar with programming a Raspberry Pi board so you can complete this project efficiently. You’ll need the following Python libraries to complete this project:

  • Matplot
  • CV2
  • OpenCV
  • Numpy
  • Keras
  • Face Recognition
  • Scipy
  • Espeak

If you haven’t built a robot before then, we recommend you start with the basics and only add the function of recognizing faces in your robot. On the other hand, if you want to make this project a little more challenging, you can add the functionality of speaking in the robot, where it would speak the name of the face it recognizes. It would take a little extra effort, but after that, your robot would be fully functional. 

Learn: MATLAB Application in Face Recognition: Code, Description & Syntax

6. Build an IoT-based Smart Home System with Raspberry Pi

Are you familiar with Smart Homes? In a smart home, most of the appliances are automated, and you can control them remotely. They are among the most popular applications of the Internet of Things. You can make your home a smart home with Raspberry Pi and Bluetooth. As Raspberry Pi already possesses a Bluetooth module, you’ll only have to connect it to an appliance (or multiple appliances) and then configure it with your mobile so you can control that particular appliance through your mobile device. 

After you’ve connected it with the appliance and configured it, you can join it to the cloud so you can access the necessary tool from anywhere at any time. 

You can start with one appliance, and after you’ve implemented it successfully, you can move onto building a more extensive network of tools that you can access remotely. Working on this project will help you explore the various real-life applications of IoT. 

Final Thoughts

We hope you liked our list of Raspberry Pi IoT projects. If you’re interested in learning more about the Internet of Things, then you should head to our blog, where we have multiple valuable resources covering this topic. 

If you’re looking for a more individualized learning experience on this topic (and relevant ones), then you should take a course in Computer Science. It will help you get a comprehensive and complete learning experience with ease. 

Also, If you’re interested to learn more about Raspberry Pi, machine learning, check out IIIT-B & upGrad’s PG Diploma in Machine Learning & AI which is designed for working professionals and offers 450+ hours of rigorous training, 30+ case studies & assignments, IIIT-B Alumni status, 5+ practical hands-on capstone projects & job assistance with top firms.

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