MOSFET Used as Switch to Control a 12V Fan
Lets turn on and off low powered fan running at low (<20V) DC voltages. We shall use a MOSFET to achieve this. Hardware IRLML0030PBF ATTiny85 2-pin 12V Fan Wiring MOSFETs have three terminals Drain (D), Source (S) and Gate (G), where source is connected to ground and the +12V or +5V along with load (Fan) is connected to drain. The MOSFET is on when gate voltage is higher than 1.7V and turned off when gate voltage is 0V. ...