A central part of the Internet of Things are devices. By collecting data about themselves and their environment using sensors, they provide the raw resources for later analytics stages. Based on the results of these analytics they can also act back on their environment through actuators. Depending on their use case, these devices come in all shapes and sizes, are placed in various environments, and often have to operate under constraints such as limited access to energy or requirements for mobility. All these factors have an impact on how they are supplied with energy, how they operate, and how they sense. In this paper, we describe the resulting types of energy supplies, operating modes, and sensing techniques as Internet of Things Patterns based on existing terminology and known implementations. We show that these patterns are interconnected with others and that they form the beginning of an Internet of Things Pattern Language, which allows readers to find and navigate through abstract solutions for often reoccurring problems.