Top 10 Raspberry Pi IoT Projects

Introduced in 2012, the Raspberry Pi single-board computer has since had many different versions, from increasingly powerful standard credit card-sized boards to the even smaller Pi Zero and the keyboard-embedded Pi 400.

It is used for home automation, edge computing and many Internet of Things (IoT) projects around the world. In this article, we take a closer look at ten stunning IoT projects built with the Raspberry Pi.

A smart garden examines the environment around the plants to ensure optimal growing conditions. This project automatically waters plants when the soil is dry. It even turns on the light when it gets too dark.

A Raspberry Pi is used with a Grove Pi+ board to collect data from the sensors and operate various actuators. Humidity, temperature and brightness in the area are recorded, as is soil moisture. Users can monitor these values ​​when checking their assets via a custom smartphone app.

As the name suggests, this is a mini garden that you can water from anywhere in the world! The hardware for this project includes a Raspberry Pi 3B, jumper wires, relays, water pump, power supply, and a power distributor.

Every 10 seconds, the Raspberry Pi sends a signal to the web server and checks if it should water the plant.

Related: DIY smart home automation projects on a tight budget


The Raspberry Pi has proven to be an excellent alternative to programmable logic controllers, a standard in many industries including automation and manufacturing. It is relatively inexpensive and efficient in executing programmed tasks through its GPIO interface. Its creators even designed a board specifically for its implementations in industrial environments: the Raspberry Pi Compute Module.

This project is a system that controls bollards. The core components required include the Raspberry Pi 3B+, a 3.5″ LCD touch screen, an 8-channel 5V relay module, a 5V power supply, and terminal blocks for making electrical connections. Everything is housed in an ABS plastic case with IP65 protection.

Build your own home automation system starting with this indoor air quality monitoring HAT for the Raspberry Pi. The LiV Pi is an expansion board that turns your Raspberry Pi into an indoor air quality monitoring device. Measure carbon dioxide levels, temperature, humidity and air pressure in your bedroom, greenhouse, garage or other environment.

The other components for the project include a DHT22 temperature and humidity sensor, a BMP180 barometric pressure sensor, an LCD display, connection cables, a DS3231 RTC module, a 16GB microSD card and of course a Raspberry Pi.

Would you like a project that monitors both energy consumption and production? If your house has a solar panel or other way to generate its own electricity, this project will help you keep track of how much energy your house is using and how much electricity it is producing!

The software and hardware is fully open source and the team has put together extensive documentation on how to use a Raspberry Pi to create this system. Data is extracted every 0.5 seconds using an MCP3008 ADC coupled with up to six current sensors to provide real-time usage data displayed with Grafana so you can view all the information at once.

Water level monitoring is used in water treatment applications, e.g. B. for pump control and channel flow measurements. Although this simple system works with a bucket of water, it demonstrates this principle and was made using a Raspberry Pi 3 Model B, an ultrasonic distance sensor, a buzzer, and some jumper wires.

When the distance of the ultrasonic sensor from the water is in the range of 4 centimeters, the buzzer will sound, alerting you that the bucket is almost full. You could create a similar project using a dedicated liquid level sensor instead.

At the heart of this DIY smart doorbell is a Raspberry Pi 3B connected to an LCD display, camera, STEMMA speaker and plug-and-play amplifier.

According to the manufacturer, the software side of things is relatively easy, with just a few hundred lines of code. The free encrypted video conferencing app Jitsi Meet was used for the video calls.

The Roomba is an autonomous robot vacuum cleaner that follows a random path across the floor. Using a Raspberry Pi, this project makes it smarter.

In this project, a Roomba 530 was used in conjunction with a Raspberry Pi. Connecting the two requires a serial connection, along with a way to power the Raspberry Pi from Roomba’s 18-volt power supply.

The Roomba was modified to fit on top of a plastic case that houses the Pi. The housing is connected to the Roomba’s bumper; This is how force is transferred to the bump sensors when Roomba moves under a chair and grabs the case. The software will then figure out what to do.

This IoT babysitter is connected to a smartphone, tablet or computer. You can control all his emotions, microphone, gestures, speaker and camera with one button.

There is a hidden camera in the eye to monitor the surroundings and children. The speaker and microphone make it possible to talk to the kids over Wi-Fi. The Sleepbuddy also comes with chalkboard paint, so if kids feel like it, they can decorate their robot friends with chalk just before bed.

If you’re a fan of the Raspberry Pi and enjoy a good cup of tea, then this is the project for you. The “R2-Tea2” was designed and built with a focus to create a robotic tea maker that is a mix between a chatbot and a tea maker. Based on the user’s answers in the conversation, it decides what kind of tea to prepare.

AI is also implemented here that analyzes the user’s day to approximate their current stress level. Then he decides what kind of cup to use, what kind of tea to make, how much milk to add and how long to steep the tea, depending on his stress level!

Which Raspberry Pi IoT project?

You’ll probably find something you like among these beginner-friendly IoT projects. Some of them allow you to customize them by using a different Raspberry Pi model.

Start with a simple project and work your way up from there; You’ll learn the basics of using a Raspberry Pi and might even get some ideas for your own dream IoT project!

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