Hi, I'd like to convert an electronic cat toy to an iot device so that I can schedule some play times for when I'm at work. I want to just a module to contacts on the push button and splice onto the 3AA battery supply. The biggest issue that I've found is most of the modules require 5v or 12v. I'd rather not run a dc booster if I don't have to. Does anyone have a small module that runs from roughly 3.7v?