The Internet of Things (IoT) is a network of physical objects, devices, vehicles, buildings, and other items that are embedded with sensors, software, and network connectivity. IoT can enable a wide range of applications, such as smart homes, smart cities, and industrial automation. Popular IoT platforms include Arduino, Raspberry Pi, and Particle. Request more information Test-driven development (TDD) is a software development approach where developers write automated tests before writing the code. TDD can help to improve code quality, reduce the number of bugs, and improve development efficiency. Popular TDD platforms include JUnit, NUnit, and PHPUnit.