Cron will trigger whatever you use, but if you want each device to take pictures at the same time you will need to ensure the clocks are synchronised, so they will need to have network access and some kind of time correction. Micro-second accuracy is probably not needed for a biology experiment so network NTP will be enough. Network connected Pis set their clock on boot, but do not seem to keep it maintained after that, so if the experiment lasts for months you might get clock drift. The full NTP background package can be installed with .
Code:
sudo apt install ntpsecStatistics: Posted by IanS — Wed Apr 24, 2024 9:02 am