I am looking to fit the XIAO in an existing product which has a battery cavity for two AA.
Can I power the XIAO with 3.0v ?
Which pins to use to inject the 3.0v?
Is it still possible to program the XIAO with USB (will provide 5v) with the AA batteries connected OR do I need to disconnect the two AA batteries?
When the batteries start to age after a long time use, their voltage will drop to 2.8v. What is the lowest voltage the XIAO can still run until it powers down?
THANK YOU FOR YOUR HELP