Review:

What is LED?

A light-emitting diode is a two-lead semiconductor light source. It is a p-n junction diode that emits light when activated.


Negative polarity or Cathode “-“ is the shortest pin. (see also the LED bulb with flat side)

Positive polarity or Anode “+” is the longest pin.

What is a Resistor?

A resistor is a passive two-terminal electrical component that implements electrical resistance as a circuit element. The resistor’s resistance limits the flow of electrons through a circuit. They passive components, meaning they only consume power.

Reference: Wikipedia,LED,Resistor

Materials Need:

1  x    gizDuino PLUS ATmega644P

 x   Solderless Breadboard

1 x    Red LED 5mm

1  x   560 Ohms

1  x   USB Cable

2 x  1pin Jumper wire (male-male)

Schematic Diagram:

Wiring Connection:

Digital pin 13 —> (+) Anode LED

(-) Cathode —> 560 Ohms —> Ground

Code:

view rawBlink.ino hosted with ? by GitHub