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.
| Pin On EXT Connector | Silk Screen Marking |
|---|---|
| 9 | BUTTON1 |
| 3 | BUTTON2 |
| 4 | BUTTON3 |