I have a microcontroller that needs to be able to survive a power outage just long enough to shoot an email telling me that the power is out. I figured the best way of doing this would be a resistor capacitor circuit, like the one below that I made that works well, that keeps the LED lit for a second after pulling the plug.
Ideally, I'd like to have something like this for my microcontroller! I just need to be able to keep it up a few seconds after the power goes out! (it instantly detects an outage)
I just have no clue what size resistor or capacitor I need, or if this is the right circuit type for the job.
Input Voltage: 5.15V
Minimum Voltage: 4V
Current draw: 600mA
Time needed: 5s minimum
I've run across many calculations, but I don't even know enough to say if I'm plugging in the right variables.