Functionality of the real time Clock

Hardware emonPi
1

Hi I have an RTC installed on one of my Emonpi’s it was all working ok. However I have powered it up today after a few days off with a non network connected laptop. It sees the nodes and there current temperatures but for some reason is not updating the time stamp. Once plugged into the network it starts working ok. Any Ideas? I need to use it as a remote logger as from tomorrow.

thanks

DD

2

SSH into your pi.
You can set the correct time easily. First run date to verify the time is correct. Plug in Ethernet or WiFi to let the Pi sync the right time from the Internet. Once that’s done, run

pi@emonpi: sudo hwclock -w

to write the time, and

pi@emonpi:sudo hwclock -r

To check if hwclock is there:

pi@emonpi:timedatectl
 	Local time: Tue 2019-10-01 12:16:29 AEST
  	Universal time: Tue 2019-10-01 02:16:29 UTC
        RTC time: Tue 2019-10-01 02:16:30
       Time zone: Australia/Sydney (AEST, +1000)
 	Network time on: yes
	NTP synchronized: yes
 	RTC in local TZ: no

Edit - formatted text. Moderator - BT

3

thanks very much

DD