Read File Saved by Ocean Optics' Raspberry Pi software.

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

read_oo_pidata(
  file,
  date = NULL,
  geocode = NULL,
  label = NULL,
  tz = NULL,
  locale = readr::default_locale(),
  descriptor = NULL,
  corr.sensor.nl = FALSE,
  spectrometer.name = "Unknown via Raspberry Pi",
  spectrometer.sn = "Unknown via Raspberry Pi",
  npixels = 2048
)

Arguments

file: character string
date: a POSIXct object, but if NULL file modification date is used with a warning and if NA date is set to NA.
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.
descriptor: list as returned by function get_oo_descriptor.
corr.sensor.nl: logical, indicating if spectral data is already linearized. If TRUE the spectrum is marked as linearized, and linearization skipped during processing.
spectrometer.name, spectrometer.sn: character.
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