How to Use a MOSFET as a Switch

In this video we will cover:

• What is a MOSFET
• MOSFET switch vs mechanical switch
• How to use MOSFET as a switch
• Go over example using a MOSFET as a switch with Arduino

Arduino Code********************************************************************

//This example code was used on the Forcetronics YouTube Channel to demonstrate how to use 

//A MOSFET as a switch. The code is open for anybody to use or modify

const int nMOS = 2; //create variable for n channel MOSFET pin

const int pMOS = 3; //create variable for p channel MOSFET pin

void setup() {

  pinMode(nMOS, OUTPUT);   // set pin to output

  pinMode(pMOS, OUTPUT);   // set pin to output

}

void loop() {

  digitalWrite(nMOS, HIGH);   // set n MOSFET gate to high, this will turn it on or close switch

  digitalWrite(pMOS, HIGH);   // set p MOSFET gate to high, this will turn it off or open switch

  delay(750);

  digitalWrite(nMOS, LOW);    // set n MOSFET gate to low, this will turn it off or open switch

  digitalWrite(pMOS, LOW);    // set p MOSFET gate to low, this will turn it on or close switch

  delay(750);

}