Datasheet

21
Easy24-33 v6 Development System
MikroElektronika
page
17.0. LEDs
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resistor. A common LED voltage is approximately 2.5V, while the current varies from 1 to 20mA depending on the type of LED. The
Easy24-33 v6 uses LEDs with current I=1mA.
There are 23 LEDs on the Easy24-33 v6 development system which 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 the pin state to be shown, it is necessary to select
appropriate port (PORTA or PORTB) using the DIP switch SW4.
Figure 17-2: Microcontroller’s PORTB and LEDs connection schematic
Figure 17-1: LEDs
Microcontroller
PORTB LEDs are turned on
Notch indicating the SMD
LED cathode
SMD resistor limiting current
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