What’s the difference between SDK & API in IoT development?
When working with the Internet of Things (IoT), you’ll often come across the terms SDK (Software Development Kit) and API (Application Programming Interface). Although they both have key roles in IoT development, there are some distinct differences you should be aware of.
Understanding SDKs in IoT
A Software Development Kit (SDK) is a comprehensive package that gives developers the tools needed to create software applications. In IoT, an SDK might include code libraries, debugging tools, sample code, and extensive documentation to interact with IoT hardware. For instance, if you are developing software for a smart thermostat, an SDK provides everything you need to integrate that specific device into your IoT system, including the pre-built components and pieces of code needed for seamless integration.
SDKs save time by simplifying the development process. They are especially helpful when working with hardware vendors because they are tailored to integrate specific devices or systems into a larger IoT network. For example, if you are deploying a particular type of sensor, the SDK provided by the manufacturer will contain all of the built-in functionality and development tools you need to communicate effectively with your sensor.
SDKs typically come with additional resources, such as pre-written code libraries, documentation, testing tools, and sometimes even package managers, providing a complete development environment. This package makes the development cycle shorter, allowing software developers to focus on creating advanced features rather than rebuilding fundamental functionalities.
What is an API in IoT?
APIs, or Application Programming Interfaces, are the communication gateways that allow different software systems to interact. In IoT, APIs enable data sharing between devices and platforms. For example, an API might allow your connectivity management platform to communicate with your main device management software, enabling you to access key connectivity data in one single platform.
APIs are essential when working with a mix of devices from different manufacturers. An API abstracts the underlying implementations and complexity and exposes straightforward methods to fetch or send data. When you need to scale your IoT system—whether adding more devices or integrating new cloud services APIs provide the flexibility to make those additions without rewriting your existing code. Public APIs, such as Weather APIs or Payment APIs, are examples of how external services can be utilised to extend the functionality of an existing application.
APIs also play a significant role when it comes to integrating third-party services, such as social logins, e-commerce platforms, payment gateways, and cloud services, into your IoT solution. This integration process ensures that applications can deliver amazing user experiences without having to develop features from scratch.
SDK vs API: What’s the difference in IoT?
The main differences between SDKs and APIs are their purpose, scope, and complexity:
When to use SDK vs API in IoT
Conclusion
SDKs and APIs are both critical tools for building IoT solutions, but they serve different roles in the software development process. SDKs help developers create applications tailored to specific devices, providing a complete development environment that includes all the building blocks—saving time and improving efficiency. APIs, on the other hand, provide the pathways for different devices and platforms to communicate, enhancing the application’s functionality and allowing for easy integration of external services such as Google Maps or AWS. Understanding the key differences between SDKs and APIs will help you make informed decisions during your software development journey, ultimately leading to efficient resource utilisation and better user experiences.
