Editor’s note In the dynamic world of technology, wireless communication stands as a cornerstone of modern innovation, reshaping how we interact with our surroundings and with each other. Wireless technology, at its core, is the transmission of information over a distance without the need for wires, cables, or any other physical connection. This seemingly simple concept has revolutionized communication, enabling not just cell phone calls and text messages, but also the rapid expansion of the Internet, media streaming, and much more. The impact of wireless technology extends beyond personal communication, deeply embedding itself in various sectors such as healthcare, automotive, and the burgeoning field of the Internet of Things (IoT). The future trajectory of wireless technology is towards faster, more reliable, and more pervasive networks. The ongoing rollout of 5G technology promises not only higher data rates and reduced latency but also the ability to connect a massive number of devices simultaneously. This leap forward presents engineers with both opportunities and challenges, requiring innovative solutions in network infrastructure, signal processing, and application development. Wireless technology is a dynamic and ever- evolving field that demands a multidisciplinary approach from engineers. Its profound impact on various sectors makes it an exciting area for engineering exploration and innovation. As we move forward, the role of engineers will be pivotal in shaping the future of wireless communication, ensuring its growth, efficiency, and security.
4 Real-Time Operating Systems (RTOS) and their applications 8 Use a cellular and GPS SiP to implement asset tracking for agriculture and smart cities 18 How to select and use the right ESP32 Wi-Fi/Bluetooth module 24 IoT security fundamentals: connecting securely to IoT Cloud services 32 Special feature: retroelectro The ALOHA System: Task II 40 Application layer protocol options for M2M and IoT functionality 46 Deploy a secure Cloud-connected IoT device network complete with Edge computing capabilities 54 Use rugged multiband antennas to solve the mobile connectivity challenge 60 Getting started with Zephyr: a developer’s guide to your first project
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