All is in the subject line. I Have a Pi 5 but have been unable to find out how to use the RTC, there is a a dearth of information it seems.
All is in the subject line. I Have a Pi 5 but have been unable to find out how to use the RTC, there is a a dearth of information it seems.
Please note that they do not recommend using a primary lithium cell for the RTC as it has a trickle charge circuit that is disabled by default. If enabled, this will kill the cell quickly.
According to the Raspberry Pi 5 documentation, it is possible to use the RTC module even without a connected battery.
https://www.raspberrypi.com/documentation/computers/raspberry-pi-5.html#real-time-clock-rtc
"The official battery part is a rechargeable lithium manganese coin cell, with a pre-fitted two-pin JST plug and an adhesive mounting pad. This is suitable for powering the Raspberry Pi 5 RTC when the main power supply for the board is disconnected, with a power-off current draw measuring in single-digit µA, giving a retention time that can be measured in months."
Please note that they do not recommend using a primary lithium cell for the RTC as it has a trickle charge circuit that is disabled by default. If enabled, this will kill the cell quickly.
According to the Raspberry Pi 5 documentation, it is possible to use the RTC module even without a connected battery.
https://www.raspberrypi.com/documentation/computers/raspberry-pi-5.html#real-time-clock-rtc
"The official battery part is a rechargeable lithium manganese coin cell, with a pre-fitted two-pin JST plug and an adhesive mounting pad. This is suitable for powering the Raspberry Pi 5 RTC when the main power supply for the board is disconnected, with a power-off current draw measuring in single-digit µA, giving a retention time that can be measured in months."