How are you going to make a UPS when you don't actually have any skills or knowledge?Just drop the 5v to 3.3v right BUT do I need a resistor? I have no idea how to calculate the right one?If you're making your own UPS, then you should be able to make a 3.3V output from that for the Pi to monitor.
Since this is probably a mains-connected project you really should buy an off-the-shelf UPS with a USB interface.
Statistics: Posted by ame — Mon Dec 11, 2023 9:14 pm