I would like to raise one confusion upon the connection of a MOSFET to my arduino UNO board.
This confusion aroused after reading some Arduino materials.
I have a fan with operating voltage 5Vdc but alas with current consumption 0.16 Amps.
In regards to an output Pin on the Arduino, we can draw up to 20 mA per pin and a total of 200mA in total. correct if im wrong.
Can i supply my Arduino Board with my external Power supply 9 Vdc, and take my supply from Vin of my board, pass through coresponding resistances through my MOSFET and up to my FAN without hurting my Arduino ?? Please note that i will like to control my FAN with PWM in relation to a thermistor.