14
EasyARM v6
MikroElektronika
page
9. LEDs
There are 80 LEDs on the
EasyARM v6
development system used to visually indicate the state of each microcontroller
I/O pin. An active LED indicates that a logic one (1) is present on the pin. In order to enable LEDs to illuminate, it is
necessary to select the appropriate port (PORT0, PORT1 or PORT2) by using DIP switch SW1. Port PORT3 is not
connected to LEDs.
Figure 9-2
: LED and port PORT0 connection schematic
Figure 9-1
: LEDs
Microcontroller
SMD resistor used to limit
current through an LED
Notch indicating the SMD
LED cathode
