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Open the 01bsp_gpio_in.c file.
Which pin is configured as INPUT in the code?
Answer 1:
Connection
Connect the nRF52840-DK to the AIOT Play
Put batteries in the AIOT Play
Plug in the nRF52840-DK
Switch the nRF52840-DK on
In Segger, select “Build and Debug” which will compile the project and load the resulting binary on the AIOT Play
Set a breakpoint in the code by clicking on a source code line number
Take a jumper cable and connect the pin you identified with GND
Now, connect the jumper to
3.6 V
Where did you set the breakpoint to see the changes on the GPIO?
Answer 2:
What is the level of the GPIO when there is no jumper cable connected?
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Answer 3
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Crash course Pull-up and pull-down GPIO modes |