I have an nRF8001 Bluefruit LE Breakout module and when I check images on how to wire it, the schematic looks like this with the 5V connection:
I was wondering whether it was possible to use the 3.3V instead. I looked at the documentation, it says this:
By connecting 5.0V on the VIN pin, all of the signals will be level shifted between 5V for the Arduino and 3.3V for the nRF8001, meaning you don't need to worry about damaging the IC by providing logic levels that it can't safely handle.
And this, which confirms that it works, right?
If you are using 3.3V logic, simply connect 3.3V from your development board to the VIN pin on the nRF8001 breakout.
I am pretty new, so I want to make sure, so I do not destroy any modules.