Internet of Things, or IoT, is a concept that describes the connection of smart electronic devices to each other over the internet. These devices can be computers, phones, printers, cars, air conditioners, lights, and even medical devices. Looking back at the development process of IoT, we cannot help but mention the great progress in computer chip and telecommunications technology. Thanks to the emergence of cheap computer chips and high-bandwidth technology, billions of devices around the world have the ability to connect to the Internet. These smart IoT devices are not only basic elements in homes, businesses and offices, but also important steps forward in creating the Internet of Things. Raspberry Pi is not only an interesting hardware platform for IoT projects, but also a tool to help developers learn and perfect Internet of Things skills.Internet of Things, or IoT, is a concept that describes the connection of smart electronic devices to each other over the internet. These devices can be computers, phones, printers, cars, air conditioners, lights, and even medical devices. Looking back at the development process of IoT, we cannot help but mention the great progress in computer chip and telecommunications technology. Thanks to the emergence of cheap computer chips and high-bandwidth technology, billions of devices around the world have the ability to connect to the Internet. These smart IoT devices are not only basic elements in homes, businesses and offices, but also important steps forward in creating the Internet of Things. Raspberry Pi is not only an interesting hardware platform for IoT projects, but also a tool to help developers learn and perfect Internet of Things skills.