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Bluetooth UUIDS

This project uses the assigned Environmental Sensing numbers.

Currently Implemented

Service:

  • 0x181A Environmental Sensing

Characteristics:

  • 0x2A6E Temperature
  • 0x2A6F Humidity
  • 0x2A6D Pressure

In future, units and update intervals may be implemented.

Standard UUIDs

From: https://specificationrefs.bluetooth.com/assigned-values/16-bit%20UUID%20Numbers%20Document.pdf

Service

  • GATT Service 0x181A Environmental Sensing

Characteristics

  • GATT Characteristic and Object Type 0x2A6E Temperature

  • GATT Characteristic and Object Type 0x2A1C Temperature Measurement

  • GATT Characteristic and Object Type 0x2A1D Temperature Type

  • GATT Characteristic and Object Type 0x2A21 Measurement Interval

  • GATT Characteristic and Object Type 0x2A1E Intermediate Temperature

  • GATT Characteristic and Object Type 0x2A6F Humidity

  • GATT Characteristic and Object Type 0x2A6D Pressure

  • GATT Characteristic and Object Type 0x2AA3 Barometric Pressure Trend

Units

  • GATT Unit 0x272F Celsius temperature (degree Celsius)

  • GATT Unit 0x27AC thermodynamic temperature (degree Fahrenheit)

  • GATT Unit 0x2705 thermodynamic temperature (kelvin)

  • GATT Unit 0x2724 pressure (pascal)

  • GATT Unit 0x2780 pressure (bar)

  • GATT Unit 0x2781 pressure (millimetre of mercury)

  • GATT Unit 0x27A5 pressure (pound-force per square inch)