RTC hold capacitor
Posted: Wed Mar 15, 2017 8:02 pm
I would use WROOM module, so VDD3P3_RTC is not available.
How can I hold RTC when main power is down and do not drain its energy too fast - how to programmatically switch off everything but RTC, what current is needed than?
How can I hold RTC when main power is down and do not drain its energy too fast - how to programmatically switch off everything but RTC, what current is needed than?