Data Sheet

INTRODUCTION TO COMPONENTS
| 7
LED
Light Emitting Diode (LED) is electronic component that emits visible light when current
passes through it. LED is a basic component used as an indicator in learning robotics. It has
polarity which is positive(+) and negative(-). Positive pin must be connected to the power
source (eg : 5V), while negative pin must be connected to the ground. LED is considered as
an output for electronic components.
Resistor
Resistor is an electronic component that limit the electrical energy in a circuit and will make
voltage and current change as a results. Resistor does not have any polarity. The value of the
resistor is based on the three stripes.