Control relay with TIP120

Posted on October 26, 2011 by ellen

Control Omron G5LE-1 relay that requires 12V to switch the relay on and off. The relay it self is turning a 220VAC circuit on and off.

Transistor controls other power source

Posted on October 26, 2011 by ellen

DC motor

Posted on September 27, 2011 by ellen

You will need:
- DC Motor
- Power diode
- TIP 120

Turn the motor on with this code:

void setup() {                
  pinMode(8, OUTPUT);     
}
 
void loop() {
  digitalWrite(8, HIGH); // Turn on motor
  delay(5000);
  digitalWrite(8, LOW); // Turn off motor
  delay(5000);       
}