LED1 and P0.02

RE: LED1 and P0.02

Martin Lesund — Fri, 19 Jun 2020 13:51:09 GMT

Hi BBM,
Please refer to the https://infocenter.nordicsemi.com/index.jsp?topic=%2Fug_nrf91_dk%2FUG%2Fnrf91_DK%2Fhw_buttons_leds.html

RE: LED1 and P0.02

BBM — Thu, 18 Jun 2020 18:26:15 GMT

Thanks for your answer Turbo J.

I know that there is a resistor and because of this resistor and so on the differnce of tension in borns is 3.3V , while the tension in P0.02 is almost 700mV or less.

What I understand from documentation when it is said that LED1 and P0.02 are connected. I wait that whether the tension in P0.02 should be the same or higher. Otherwise how we can use P0.02 to command an external port like another LED for example to show the same behavior of LED1.

RE: LED1 and P0.02

Turbo J — Thu, 18 Jun 2020 18:08:38 GMT

[quote userid="91296" url="~/f/nordic-q-a/62763/led1-and-p0-02"] If so then why the voltage in borns of the LED1 and P0.02 is not the same. [/quote]

Because there is a resistor in between, like in all sensible LED circuits?