I want to make a LiPo powered datalogger using an MKR Zero, but the analog device I am using requires 5V excitation (between 4.75 and 5.25V).
My understanding of what I have read is that the 5V pin on the Zero works only when it is USB powered or has a Vin of 5V or more, implying that it doesn't work when powered by a 3.7V LiPo battery.
Am I reading this right? To use a 5V device, I'd have to get a separate supply for that.
Or I could just use an Uno (although I like the built-in RTC and SD port of the Zero.)
Any help would be appreciated.