Page History

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• Sparkplug A
  • Based on the open source Eclipse Kura Google Protobuf payload definition.
  • Simple design that supports metrics with a name, a datatype, and a value.
  • Native GPS support
• Sparkplug B
  • Open source Google Protobuf definition specifically designed for Sparkplug.
  • Simple design that supports metrics with a name, a datatype, and a value.
  • Additional datatype support over what was included in Sparkplug A.
  • Supports metadata around metrics for null values, timestamps per metric, historical messages, and custom properties.
  • Supports metric name aliases to reduce bandwith usage.
  • Template support for complex data types.
  • Dataset support

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The Sparkplug source code is laid out with the following directories.

• client_libraries - These are libaries in various languages to aid in development
  
  • c - C client library
  • c_sharp - C# client library
  • java - Java client library
  • javascript - Javascript client library
  • python - Python client library
• sparkplug_a
  • raspberry_pi_examples - This is a set of reference implementations for use with the Raspberry Pi Model 2 B.
  • stand_alone_examples
  These are examples that can be run on a development system and have no
  • - Examples which can run on multiple platforms (no hardware specific I/O requirements)
  • tools - Utilities including a listener to view messages
• sparkplug_b
  specific hardware requirements
  • raspberry_pi_examples
  • - This is a set of reference implementations for use with the Raspberry Pi Model 2 B.

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• • stand_alone_examples - Examples which can run on multiple platforms (no hardware specific I/O requirements)
  • tools - Utilities including a listener to view messages
    
    

Implementation notes and useful tools:

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