LoRaWAN is a low-power wide-area network (LPWAN) technology that is specifically designed for IoT devices that require long-range communication and low power consumption.

Arduino is a popular open-source IoT platform that is known for its ease of use, extensive community support, and wide range of available sensors and actuators.

Home Assistant is a popular open-source IoT platform that is specifically designed for building home automation systems. It offers a wide range of features, including support for various smart home devices, automation rules, and a user-friendly interface.

RIOT is a popular open-source IoT platform that is known for its focus on security and privacy. It provides a secure operating system and a range of security features, making it suitable for applications where security is a primary concern.

MicroPython is a popular open-source IoT platform that is designed to run on microcontrollers. It is a Python implementation that is optimized for embedded systems, making it suitable for developing IoT applications in Python.

Raspberry Pi is a popular open-source IoT platform that is known for its support for a wide range of hardware devices. It has a large community of users and developers, and there are many resources available for building IoT projects with Raspberry Pi.

FreeRTOS is a popular open-source IoT platform that is commonly used for building industrial IoT (IIoT) applications. It is a real-time operating system (RTOS) that provides a wide range of features and is optimized for embedded systems.

OpenFog is a popular open-source IoT platform that is known for its support for edge computing and fog computing. It provides a framework for deploying and managing IoT applications at the edge of the network, enabling real-time data processing and decision-making.

Johnny-Five is a popular open-source IoT platform that is designed for building IoT applications in JavaScript. It provides a library of modules that allow developers to easily interact with various hardware devices and sensors.

LoRaWAN is a popular open-source IoT platform that is known for its support for low-power IoT devices. It is a LPWAN technology that is designed for long-range communication and low power consumption, making it suitable for applications such as smart cities, agriculture, and industrial IoT.

Mbed is a popular open-source IoT platform that is designed for building IoT applications in C++. It provides a comprehensive set of tools and libraries that make it easy to develop and deploy IoT applications on a variety of hardware platforms.

AWS IoT Core is a popular open-source IoT platform that is provided by Amazon Web Services (AWS). It offers a wide range of features and services for building and managing cloud-based IoT applications, including device management, data collection and analysis, and secure communication.

Eclipse IoT is a popular open-source IoT platform that is designed for building IoT applications in Java. It provides a comprehensive set of tools and libraries that make it easy to develop and deploy IoT applications on a variety of hardware platforms.

Apache Spark is a popular open-source IoT platform that is known for its support for real-time data processing and analytics. It provides a unified platform for processing large volumes of data in real time, making it suitable for applications such as fraud detection, anomaly detection, and predictive analytics.

Adafruit IO is a popular open-source IoT platform that is designed for building IoT applications in Python. It provides a cloud-based platform for connecting and managing IoT devices, as well as a variety of tools and libraries for developing IoT applications.