I'm building a simple irrigation system which uses a Raspberry Pi to open and close a solenoid water valve. In general, the system should open the valve for set intervals of time every so often (E.g. ...
I'm having trouble configuring chrony to sync the time between my raspberry pi and a desktop computer in an isolated network. My raspberry pi's chrony.config file looks like this: server master ...
I use Motion detection and a webcam as a security camera. It's headless with no internet or keyboard. To turn the camera off while it's not need I just turn the power supply off. Because I shut it ...
The electricity to my apartment went out a few days ago. I use my RPi to record data and store it in a database. I've just learned that the time for all my data has been off by an hour because the ...
As I understand RTC is needed to keep track of time. However, Raspberry Pi does not have that and use NTP servers to synchronize its time. All that is fine, but how does Pi know that one millisecond ...
I don't have to set the clock (besides the timezone) on the Raspberry Pi. Where is it getting the time from? About how accurate is it?
Can anyone explain to me how time is kept on an RPi with the latest Raspian release? What sets the internal clock from an NTP server? What happens when no NTP server is availible? From my program I ...
I realize that since Raspberry Pi doesn't have a real-time clock built in, some issues with accurate timekeeping may present themselves, even when persistence across reboots is not a requirement. This ...