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The Future of Bluetooth Connectivity for Device Makers

Picture of Maya Ahluwalia Maya Ahluwalia Dec 5, 2024 2:01:41 PM

Memfault

Bluetooth technology has come a long way—from its origins as a simple cable replacement to its role as a critical enabler of IoT devices across industries. Its scalability, cost efficiency, and global standardisation have made it indispensable in consumer, commercial, and industrial applications.

In a recent fireside chat hosted by Memfault and joined by Simon Ford, key topics surrounding Bluetooth’s past, present, and future were explored. The conversation highlighted the technology’s evolution, current challenges, and exciting opportunities ahead. Here are some of the key takeaways from the discussion.

Why Bluetooth?

Bluetooth’s enduring success lies in its ability to adapt. Originally introduced as a short-range wireless solution, it has evolved to meet the demands of diverse applications. With the introduction of Bluetooth Low Energy (LE), the technology pivoted toward low-power, low-bandwidth use cases, opening up opportunities in fitness, healthcare, and industrial IoT.

Bluetooth LE’s ability to leverage existing Bluetooth chipsets in phones, laptops, and other devices has driven its rapid adoption, making it a practical choice for developers seeking energy-efficient connectivity.

Key Trends Shaping Bluetooth Today

The Transition to Bluetooth LE
Bluetooth LE marks a departure from Bluetooth Classic. It introduces a new framework optimised for peripherals, sensors, and other constrained devices. This innovation allows devices to communicate efficiently while preserving battery life, which is critical for applications requiring long-term reliability, such as medical monitors and asset trackers.
Expanding Use Cases
Bluetooth has grown far beyond its early applications in wearables and consumer audio devices. Today, it supports a wide range of IoT solutions, including asset tracking, industrial sensors, and smart building systems. Recent advancements such as long-range modes and the introduction of LE Audio showcase how Bluetooth continues to evolve, addressing new requirements in both existing and emerging markets. Bluetooth LE’s versatility ensures it continues to adapt to emerging needs, enabling developers to unlock new possibilities.
The Cloud Connectivity Challenge
Connecting Bluetooth devices directly to the cloud presents unique challenges, such as addressing security and pairing complexity. However there are now solutions that bypass traditional 1:1 pairing, enabling devices to use existing Bluetooth-enabled infrastructure as hotspots for cloud communication. This approach makes Bluetooth an increasingly viable option for large-scale IoT deployments.
Mesh Networking: A Reality Check
Bluetooth Mesh, designed for device networks like smart lighting systems, has generated interest but also raised questions about its complexity and scalability. While mesh can work for specific use cases, developers may be better served exploring simpler, more effective alternatives

Looking Ahead: What’s Next for Bluetooth?

Bluetooth continues to evolve. The integration of Bluetooth LE with advanced technologies like MEMS sensors and energy-scavenging circuits signals a shift toward ultra-efficient, multi-functional devices.

While Bluetooth’s technical capabilities are impressive, its real strength lies in its practicality. Developers benefit from a mature ecosystem, readily available tools, and a global standard that ensures compatibility across devices.

Why This Matters

Bluetooth’s flexibility and affordability make it a cornerstone of IoT Connectivity. Its ongoing evolution is a testament to its enduring relevance and potential to power next-generation devices. For developers and engineers, understanding these trends is essential to building products that are not only innovative but also reliable and scalable.

Further Resources

Bluetooth continues to prove its value across a wide range of IoT applications. Whether you’re looking to address specific challenges like cloud connectivity or exploring how to improve device analytics and diagnostics, these resources can help:

Benefits and Barriers to Bluetooth Low Energy for IoT Connectivity: Learn how Bluetooth LE can be applied effectively for IoT Connectivity and how Blecon helps overcome common obstacles.
Why Embedded Products are Adopting Product Analytics and Engineering Diagnostics: Understand how combining Blecon and Memfault enables better insights into device performance and simplifies engineering workflows.