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//
Wireless // Bluetooth // Bluetooth 5

Bluetooth 5 Learning Center

Bluetooth 5 is the most significant update to the Bluetooth specification since the introduction of Bluetooth low energy. With 4x range, 2x speed and 8x broadcasting message capacity, the enhancements of Bluetooth 5 focus on increasing the functionality of Bluetooth for the IoT.

Webinar

Get the Most out of Bluetooth 5

Explore how to get the most out of Bluetooth 5 capabilities with EFR32 Blue Gecko SoCs

Watch Now

Whitepaper

Bluetooth 5, Refined for the IoT

In this whitepaper we explore how the latest Bluetooth specification can help push new innovations in devices for smart homes, wearables, beaconing, and many other IoT applications.

Read More

IoT Heroes

How the IoT Helps Bees, Babies, and Buildings

Learn how Bluetooth is making construction safer, protecting bees, and helping infants.

Learn More



2x Speed

  • 2M PHY
  • Up to 1400 kbps throughput
  • 15 to 50% lower power

4x Range

  • 2x range at 125 kbps PHY
  • 2x range at +20 dBm TX

8x Advertisement Capacity

  • Up to 255 B of data per packet
  • Chaining of multiple advertisement packets
  • Offload advertisement packets to data channels


Increasing Throughput with the 2M PHY

Bluetooth 5 adds a secondary PHY. This 2M PHY is twice as fast as the 1M PHY in Bluetooth 4. The 2M PHY is optional to support, allowing devices that implement this feature to be backwards compatible with devices by falling back to the 1M PHY.

PHY Symbol Rate Packet Time Maximum Throughput
1M 1M symbols/s 0.08 to 2.12 ms 800 kbps
2M 2M symbols/s 0.04 to 1.06 ms 1438 kbps

By reducing the transmission time for the same amount of data, IoT devices can remain in low power sleep modes for a longer duration. This can average current savings between 15% and 50%.

 

Sample Current Consumption Measurements on EFR32 Blue Gecko SoC

1M PHY

357 uA average current consumption with 80 us packet

2M PHY

304 uA average current consumption with 44 us packet

Extending Range by Up to 4x

Bluetooth 5 provides an option of two new long range PHYs with a 1M symbols per second symbol rate. With a lower data throughput applications can significantly increase range with this capability.

Coded PHY Range Multiplier Symbol Rate Packet Time Maximum Throughput
125 kbps 2x 1M symbols/s 0.72 to 17.04 ms 112 kbps
500 kbps 1.5x 1M symbols/s 0.46 to 4.52 ms 382 kbps

Expanding Advertisement Capacity by 8x

While maintaining backwards compatibility, Bluetooth 5 introduces significant improvements to the capacity of advertisement sets. With 8x the capacity of previous versions Bluetooth 5 can make use of any Bluetooth 5 data channels for the purpose of secondary advertisement sets. Secondary advertisement channels can transmit up to 255 bytes of data per packet and can also be chained. Primary advertisement channels continue to use the Bluetooth 4 compatible 1M PHY.

Bluetooth 5 also introduces a feature called advertisement sets. These allow a single Bluetooth radio to send out multiple individual advertisements. This enables the development of a single device that can operate as both an Apple® iBeacon™ and a Google® EddyStone™ beacon.



IoT Hero Play Impossible Puts a New Spin on Playtime

Play Impossible has reinvented the ball by connecting it to phones
and tablets.

Learn More
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Also of Interest:
  • Bluetooth ® 5, Refined for the IoT
  • Bluetooth Mesh Networking Learning Center
  • Bluetooth Beacon Learning Center

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