SolarOS 4.13.4 manual · job

daq

Data acquisition job. It captures scalar and event streams to timestamped CSV, or one byte or PCM audio source directly to a raw file.

The daq shell command is usually easier to remember:

daq
daq streams
daq start <stream...> <file> [options]
daq start <file> <stream...> [options]
daq stop
daq status

Direct job usage:

job start daq <stream...> <file> [--rate seconds|--rate-ms ms] [--append|--replace]
job start daq <file> <stream...> [--rate seconds|--rate-ms ms] [--append|--replace]
job start daq <byte-stream> <file> --raw [--rate-ms ms] [--append|--replace]
job start daq <audio-stream> <file> --raw [--rate-ms ms] [--append|--replace]
job stop daq
job status daq

Defaults:

Examples:

daq start temperature /logs/temp.csv --rate 60
daq start /logs/env.csv temperature humidity battery --rate 60
daq start uart0 /logs/uart0.bin --raw --rate-ms 25
daq start audio0.capture /logs/microphones.pcm --raw
job start daq /logs/env.csv temperature humidity battery --rate 60

Notes:

• Multi-stream mode supports scalar and event streams only.
• Raw capture is single-stream only and writes byte or PCM audio data directly.
• Raw audio files contain the native format shown by

stream status audio0.capture; use arecord when a WAV container is needed.

• CSV rows include a timestamp column and one value column per stream.
• Available streams depend on board capabilities.