GPIO pins output with 1.8V supplyhttps://devzone.nordicsemi.com/f/nordic-q-a/62483/gpio-pins-output-with-1-8v-supplyI am connecting 1.8V supply to VDDH and VDD so none of the REG will be on. Will I get 1.8V out on the GPIO? I am trying to connect LED on the pins but with 1.8V out that will be hard, is there a way to tune this and reduce the current coming out?en-USTelligent Community 13Fri, 12 Jun 2020 12:26:55 GMTRE: GPIO pins output with 1.8V supplyhttps://devzone.nordicsemi.com/thread/254722?ContentTypeID=1Fri, 12 Jun 2020 12:26:55 GMT137ad170-7792-4731-bb38-c0d22fbe4515:21674fa1-e9ab-4adb-9b1e-edd191a61ed9ketiljo<p>The GPIO voltage is always referred to VDD on nRF devices. No LED is going to work well with only 1.8 V. A red LED needs 1.9 V, so you need a higher power supply. In any case, the GPIO can&#39;t deliver more than 5-10 mA so in most cases, you can connect the LED directly to the GPIO with no series resistor. You need more than 1.8 V though.&nbsp;</p><div style="clear:both;"></div>