Not sure if this is the right forum. I have a quick question about the Unicorn Hat HD. There’s no schematic or anything for it otherwise I’d probably know the answer.
For the 3.3V and 5V power input rails - I assume those power the ARM MCU and LED drivers respectively?
I ask because I am wondering what the “safe” voltage range is for the 5V. I wrote a library to make it work with my Adafruit Feather NRF52 (code is on github) and I’m trying to reduce the amount of components in my project.
It seems to work fine with the 5V connected to the battery pin (which is a direct feed from the 3.7v Lithium battery) during my unscientific test of letting it sit there while I was working on other stuff for several hours, but I’d like to avoid potential problems long term.