120-240 VAC Light bulb: TRIAC

This example is for Wiring version 0024+. If you have a previous version, use the examples included with your software. If you see any errors or have comments, please let us know.

Switchng a 12V lamp with an International Rectifiers IRLD024 Mosfet Switch by BARRAGAN http://barraganstudio.com

A Mosfet is s special kind of transistor switch used to handle higher loads than the Wiring board can handle by itself. Logic-level MOSFETs can be connected directly to a digital output pin. In this example the Wiring board is blinking a 12V lamp by using an IRLD024 Mosfet connected to the digital Pin 0 Don't forget to tie together the Wiring GND and the Lamp 12V power supply GND.


int mosfetPin = 0;  // Mosfet Gate pin connected to the Wiring I/O board pin 0 
 
void setup() 
{ 
  pinMode(mosfetPin, OUTPUT);  // sets the digital pin as output 
} 
 
void loop() 
{ 
  digitalWrite(mosfetPin, HIGH);  // sets the Lamp on 
  delay(1000);                    // waits for a second 
  digitalWrite(mosfetPin, LOW);   // sets the Lamp off 
  delay(1000);                    // waits for a second
}