https://devzone.nordicsemi.com/f/nordic-q-a/2132/gpio-drive-currentHi, Is it possible to control the drive current of the gpio pin? Can anyone explain the different possible drive configuration for gpio&#39;s (S0S1,H0S1, etc..)? Regards, Balajien-USTelligent Community 13Mon, 07 Apr 2014 15:47:59 GMThttps://devzone.nordicsemi.com/thread/9077?ContentTypeID=1Mon, 07 Apr 2014 15:47:59 GMT137ad170-7792-4731-bb38-c0d22fbe4515:33130306-7933-4a82-8389-ee9b358e1da5Hung Bui<p>@Balaji: You can limit the maximum current sink or source on the pin using 2 levels:</p> <ul> <li>S-standard drive(0.5mA)</li> <li>H-high drive (5mA) For example S1H0 means standard sink (logic 1) and high drive source (logic 0)</li> </ul> <p>Please refer to section 8.23 in the nRF51822 Product Spec and section 13.2.8 in the Reference Manual.</p><div style="clear:both;"></div>