Open charlespax opened 8 years ago
Here is a super capacitor calculator: https://www.maximintegrated.com/en/design/tools/calculators/product-design/supercap.cfm
Seeed has a module, but I can't find the schematic. http://www.seeedstudio.com/depot/RTC-Module-Super-Capacitor-p-2137.html
Topic on Stack Exchange. http://electronics.stackexchange.com/questions/26855/supercap-powered-rtc
What is the minimum voltage for the STM32 battery backup? 1.8 V to 2.6 V
I'm going to ice box this. Maybe come back to it later.
Maybe use a super capacitor.
Things to consider