NILU-UV-pi

Read data from NILU-UV built-in datalogger and upload to FTP.

• Commands are sent to NILU-UV over serial connection.

• NILU time is set before data retrieval.

• Records since last readout (in last .csv data file) are retrieved from the datalogger.

NOTE: If no csv data file is found, reads all memory. NILU can store approx 23 days of 1min data. Retrieval takes around 75 minutes.

• Records are grouped by date and saved as daily .csv files.

• The .csv files are uploaded to FTP servers.

• Older files are moved to data/archive folder.

Instructions

Edit the FTP parameters in uploaders.py

To avoid overlapping cron job execution, use flock in crontab:

*/5 * * * * /usr/bin/flock -w 0 ~/flock_file.lock python3 ~/NILU-UV-pi/main.py

To check if your cron job is running:

grep CRON /var/log/syslog

To make sure that flock works:

flock -n -x ~/flock_file.lock true || echo "LOCKED"