I'm trying to create a datalogging device that can run on batteries. I've been using the arduino nano but I want a battery charger and more program storage as I've had to minimise a lot of code for the nano program. I was told about the feather RP2040 in my last post, but I've realised that the 2004 LCD I use requires a 4.8v minimum input voltage.
I'm thinking about using a switching regulator to output 5v to the LCD and any other components that require 5v. Is it that easy to connect the USB pin to a 5v switching regulator and have the regulator power the LCD?
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