I have a project which uses an IR LED and receiver to communicate with other Arduinos. I am using the Atmega328 out of the Uno, rather than the whole Arduino board and I need it to be battery-powered, so I need to use a voltage regulator to maintain 5V to the chip.
I want to avoid a linear regulator if I can, as they are inefficient, but I'm worried that the other types will cause too much noise on the output and it will interfere with the IR communication.
Should I be concerned about this or am I making a fuss about nothing, I can always use a linear one if I need to.
Thanks in advance.