What is the purpose of the 3.3v pin on the Nano? I am currently using it to power a Nokia 5110 but I'm uncertain of the mA current limits for the pin. Can someone please help? the AT328 Atmel manual did not help.
The specs for the Uno (https://store.arduino.cc/arduino-uno-rev3) say you can draw 50mA from the 3.3v pin but there is no equivalent data for the Nano (https://store.arduino.cc/arduino-nano).
The 3.3v output is not part of the Atmega 328 - it is provided by a separate onboard voltage regulator.
Ok, thanks. I'll use a 4050 between the Nano and Nokia 5110, both powered by the 3v Nano pin, and see what happens.