Read File Saved by Ocean Optics' Raspberry Pi software.

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Description

Reads and parses the header of a raw data file as output by the server running on a Raspberry Pi board to extract the whole header remark field. The time field is retrieved and decoded.

Usage

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read_oo_pidata(file, date = NULL, geocode = NULL, label = NULL,
  tz = NULL, locale = readr::default_locale(), npixels = 2048)

Arguments

file

character string

date

a POSIXct object, but if NULL the date stored in file is used, and if NA no date variable is added

geocode

A data frame with columns lon and lat.

label

character string, but if NULL the value of file is used, and if NA the "what.measured" attribute is not set.

tz

character Time zone is not saved to the file.

locale

The locale controls defaults that vary from place to place. The default locale is US-centric (like R), but you can use locale to create your own locale that controls things like the default time zone, encoding, decimal mark, big mark, and day/month names.

npixels

integer Number of pixels in spectral data.

Value

A raw_spct object.

Note

The header in these files has very little information, so the user needs to supply the number of pixels in the array as well as the date-time. The file contains a date in milliseconds but as the Raspberry Pi board contains no real-time clock, it seems to default to number of milliseconds since the Pi was switched on.

References

http://www.r4photobiology.info http://oceanoptics.com/ https://www.raspberrypi.org/