Hi, i am using the RAK3172 STM32WLE5 module to send and receive data. The module is in Sleep Mode till it wake up by an interrupt. I want to decrease the current consumption during the Sleep Mode. Is it possible to disable the RTC during Sleep Mode ? Do i need the RTC at all if the module is waking up by an interrupt?
Hi @toka ,
Welcome back to RAK forum.
If you are using RUI3, there is no way to shutdown the RTC during sleep.
You can use STM32WL SDK to disable RTC and only enable wake up via IO pins. However, I am not sure if the effort will be worth it though, the RTC only consumes 250nA (for LSE) and 110nA (for LSI). Here’s a good documentation from ST.
Thank you for your answer. I dont use RUI3.