Crate cayenne_lpp

This crate is a port of the Cayenne LPP (Low Power Payload) API. It provides an easy way to send data over LPWAN networks such as LoRaWAN. Cayenne LPP is compliant with payload size restrictions, which can be lowered down to 11 bytes and allows the device to send multiple sensor data at one time.

Additionally it is also possible to send different sensor data in different frames. To do this, the channel value of the data can be used.

The original C++ version of Cayenne LPP can be found here.

Structs

• CayenneLPP
  This struct contains the data of the added payload objects and an index that points to the next free value in the array. All newly added values will increase the index. After adding all the values, the buffer contains the payloads of the different data types and has a length of ’‘index’’.

Enums

• Error
  Defines all the errors that can occur in this crate.

Constants

• LPP_ACCELEROMETER
  Data type of accelerometer values
• LPP_ACCELEROMETER_SIZE
  Size of an accelerometer packet including channel and data type
• LPP_ANALOG_INPUT
  Data type of an analog input
• LPP_ANALOG_INPUT_SIZE
  Size of an analog input packet including channel and data type
• LPP_ANALOG_OUTPUT
  Data type of an analog output
• LPP_ANALOG_OUTPUT_SIZE
  Size of an analog output packet including channel and data type
• LPP_BAROMETRIC_PRESSURE
  Data type of a barometric pressure value
• LPP_BAROMETRIC_PRESSURE_SIZE
  Size of a barometric pressure packet including channel and data type
• LPP_DIGITAL_INPUT
  Data type of a digital input
• LPP_DIGITAL_INPUT_SIZE
  Size of a digital input packet including channel and data type
• LPP_DIGITAL_OUTPUT
  Data type of a digital output
• LPP_DIGITAL_OUTPUT_SIZE
  Size of a digital output packet including channel and data type
• LPP_GPS
  Data type of GPS value
• LPP_GPS_SIZE
  Size of a GPS packet including channel and data type
• LPP_GYROMETER
  Data type of gyrometer values
• LPP_GYROMETER_SIZE
  Size of a gyrometer packet including channel and data type
• LPP_LUMINOSITY
  Data type of a luminosity value
• LPP_LUMINOSITY_SIZE
  Size of a luminosity packet including channel and data type
• LPP_PRESENCE
  Data type of a presence sensor
• LPP_PRESENCE_SIZE
  Size of a presence sensor packet including channel and data type
• LPP_RELATIVE_HUMIDITY
  Data type of a relative humidity value
• LPP_RELATIVE_HUMIDITY_SIZE
  Size of a relative humidity packet including channel and data type
• LPP_TEMPERATURE
  Data type of a temperature value
• LPP_TEMPERATURE_SIZE
  Size of a temperature packet including channel and data type