nRF9160 DK : activating GPIO

RE: nRF9160 DK : activating GPIO

cerfvert — Mon, 08 Jul 2019 12:23:25 GMT

Hello,

I resolved the issue this morning as well.

I rebuilt the solution and it measured about 1.8V.

The time that I mesaured the voltage with multimeter, I think I have misconfigured the project.

And then I assumed that the DK would give 3.3V across the GPIO pins and 1.8V is not enough to light it up.

I used a transistor and resistors to flash the LED.

So, long story short, it was bad on my part.

Thank you

RE: nRF9160 DK : activating GPIO

Simon — Mon, 08 Jul 2019 12:16:55 GMT

I tested your example, and it worked as expected. (I modified your project slightly by removing target_sources(app PRIVATE src/SD.c) from CMakeListst.txt).

I measured 1.79 volt across both P0.00 and P0.01 with a multimeter. I also connected an external LED in series with a resistor and was able to light it up.

Are you sure you have configured the multimeter correctly? Could you try to attach an LED+resistor and check the results. If it you still have problems, please tell me, and I will look into it.

Best regards,

Simon

RE: nRF9160 DK : activating GPIO

Simon — Mon, 08 Jul 2019 11:05:54 GMT

I am sorry for the long delay, I'm currently looking into your issue and will try to provide you with an answer as soon as possible.

Best regards,

Simon