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Pin Number
Function
Description
12
NC
13
NC
14
NC
15
DISPLAY_SS
OLED display slave select, active low
16
SPI MOSI
MOSI signal SPI connected to OLED display
17
NC
18
SPI SCK
Clock signal for SPI connected to OLED display
19
GND
Ground
20
VCC
Target supply voltage
Related Links
Xplained Pro Standard Extension Header
4.3.
Peripherals
4.3.1.
LEDs
There are three yellow LEDs available on OLED1 Xplained Pro. The LEDs can be activated by driving the
connected I/O line low.
Table 4-3. LED Connections
Pin on EXT connector
Silk screen marking
7
LED1
8
LED2
6
LED3
4.3.2.
Push Buttons
There are three push buttons available on OLED1 Xplained Pro. When a button is pushed the
corresponding I/O pin is connected to ground. There are no external pull-up resistors on OLED1 Xplained
Pro, so internal pull-up resistors have to be enabled in the target microcontroller.
Info:
Remember to enable internal pull-up resistors in the target device to get a defined
electrical level on the I/O lines connected to the buttons.
Table 4-4. Push Buttons Connections
Pin on EXT connector
Silk screen marking
9
BUTTON1
3
BUTTON2
4
BUTTON3
Atmel OLED1 Xplained Pro [USER GUIDE]
Atmel-42077C-OLED1-Xplained-Pro-Hardware_User Guide-03/2016
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