EVK-NORA-B1 - User guide
UBX-20030319 - R05
Hardware description
Page 9 of 32
C1-Public
Figure 4: Schematic – user buttons
2.4
LEDs
User LEDs are provided on the evaluation board - two red and two green. An RGB LED is also included
and this can be enabled by changing the position of JLED1.
LEDs are powered by
VIO
and are active low. The GPIO should be enabled for high drive when sinking
current for the LEDs. The LEDs can be completely removed from the circuit by breaking the
associated jumper.
LED
RGB LED
GPIO
Jumper
Comments
1 Red
Red
P0.28
J4
Change JLED1 for RGB
2 Red
Blue
P0.29
J5
Change JLED1 for RGB
3 Green
Green
P0.30
J7
Change JLED1 for RGB
4 Green
P0.31
J8
Table 4: LED components
Figure 5: Schematic – user LEDs
