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In this video we will discuss Bluetooth Low Energy.
Bluetooth Low Energy, also known as Bluetooth LE or BLE is a wireless computer network technology aimed at novel applications in the healthcare, fitness, security, and home entertainment industries. Compared to classic Bluetooth technology, BLE requires much lower power consumption and offers a lower cost while maintaining the same communication range.
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Bluetooth LE was merged into the main Bluetooth standard in July 2010, when Bluetooth Core Specification Version 4.0 was adopted. That specification is called Bluetooth Smart and includes:
• Classic Bluetooth protocol
• Bluetooth high speed protocol
• Bluetooth Low Energy protocol
Bluetooth Low Energy is a subset of Bluetooth v4.0 with an entirely new protocol stack for rapid build-up of simple links. Unlike Bluetooth standard protocols introduced in Bluetooth versions 1.0 to 3.0, it is aimed at very low power applications that can run off a coin-cell battery for several months or even years.
Chip designs allow for either:
• Single mode Bluetooth Classic implementation
• Single mode Bluetooth LE implementation
• Dual mode implementation, where Bluetooth LE functionality is integrated into an existing Classic Bluetooth controller
Bluetooth LE uses the same 2.4 GHz ISM band radio frequencies as Classic Bluetooth. This allows dual-mode devices to share a single radio antenna. However, Bluetooth LE uses a modulation system that is much simpler.
Bluetooth Low Energy technology operates in the same spectrum range as Classic Bluetooth technology (2.400 GHz-2.4835 GHz ISM band) and also uses frequency hopping to counteract narrowband interference problems. However, it uses a different set of channels and instead of Bluetooth Classic's 79 1-MHz wide channels, Bluetooth LE has 40 2-MHz wide channels. The bit rate is 1Mbit/s, and the maximum transmit power is 10 mW.
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Bluetooth LE technology offers new opportunities for designers and developers of Bluetooth applications with several key advantages including:
• Ultra-low peak, average and idle mode power consumption
• Low power requirements: it can run for several months or years on standard, coin-cell batteries
• Small size
• Low cost
• Multi-vendor interoperability
• Compatibility with a large base of mobile phones, computers and tablets
• Communication range
This opens up a wide range of exciting possibilities for this technology.
The main markets where BLE is perfectly suited are:
• Sports & Fitness
• Security & proximity sensing
• Home entertainment
• Health & Wellness : One of the major adopters of Bluetooth Low Energy protocol, in the field of health and wellness
Bluetooth Low Energy has also found uses in several other fields including:
• Alerts and time profiles
• Automotive applications
• Smart energy applications
• Home automation
Future Electronics offers a variety of Bluetooth Modules & Solutions from leading suppliers. Visit us to learn more : www.FutureElectronics.com/
Stay tuned for Future Videos on this technology.
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