5 independent PWM channels with nRF51 SDKhttps://devzone.nordicsemi.com/f/nordic-q-a/9991/5-independent-pwm-channels-with-nrf51-sdkHello, I&#39;m new to nRF51 and would like to understand if it is possible to output 5 independent PWM signals to 5 GPIO pins simultaneously on a nRF51? Thank you.en-USTelligent Community 13Fri, 30 Oct 2015 08:25:29 GMTRE: 5 independent PWM channels with nRF51 SDKhttps://devzone.nordicsemi.com/thread/37046?ContentTypeID=1Fri, 30 Oct 2015 08:25:29 GMT137ad170-7792-4731-bb38-c0d22fbe4515:ba1cf333-36e8-471f-93d7-1fae2cbf3038&#216;yvind Karlsen<p>Hi,</p> <p>For the nRF51 you can have a maximum of 4 PWM channels, this is because we have 4 GPIOTE channels.</p> <p>In theory we could have 8 due to the timers having 4 compare events, however you typically will need one of those compare events to do a reset, so we end up with a theoretical max of 6.</p> <p>This means that you will have trouble using more than four channels without a GPIO expander on the nRF51.</p> <p>If you decide to use the nRF52 instead that has three PWM modules which can provide up to <a href="http://infocenter.nordicsemi.com/topic/nrf52.v1.7/Chunk579441394.html?cp=1_1_0_43#concept_pzc_1pw_nr">12 PWM channels</a>. This is a hardware PWM, as opposed to the <a href="https://en.wikipedia.org/wiki/Bit_banging">bitbang</a> implementation on the nRF51, this means that it will in most cases perform better.</p> <p>Best regards,</p> <p>Øyvind</p><div style="clear:both;"></div>