Configuring RTC

The device contains an integrated RTC, which automatically reads the system time synchronously by default, and can manually read and write the system time into RTC.

  1. Open a terminal and run the following command to install the utility package.
sudo sudo apt install util-linux-extra

TIP

  • If using the pre-installed operating system from our company, this utility package is already installed by default and does not need to be reinstalled.
  • If you installed Raspberry Pi OS yourself and then installed the Firmware, you will need to install this utility package.
  1. Read the RTC time or write the system time to the RTC as needed.
  • Execute the following command to read the RTC time manually.
sudo hwclock -r
  • Execute the following command to write the system time into RTC.
sudo hwclock -w