Using an LED Diode (Red & Blue) Common Cathode with a Seeeduino Xiao

Description: An LED Diode (Red & Blue) with a Common Cathode alternates turning the blue and red light of the LED ON/OFF with a 2 second delay between each change.

Supplies:

1 – Breadboard 400 Points
1 – Seeeduino Xiao
1 – LED (Red & Blue with Common Cathode)   >> Link <<
1 – 220 Ohm Resistor

Arduino Code:

#define blue 3
#define red 4

void setup() {

  pinMode(blue, OUTPUT);
  pinMode(red, OUTPUT);

}

void loop() {

  digitalWrite(blue, LOW);
  digitalWrite(red, HIGH);
  delay(2000);

  digitalWrite(blue, LOW);
  digitalWrite(red, LOW);
  delay(2000);

  digitalWrite(blue, HIGH);
  digitalWrite(red, LOW);
  delay(2000);

  digitalWrite(blue, LOW);
  digitalWrite(red, LOW);
  delay(2000);

}