https://devzone.nordicsemi.com/f/nordic-q-a/21332/close-file-can-t-connect-when-adding-pwm-to-ble-uart-exampleHello everyone, I encounter a question. I follow below link to solve the issue. https://devzone.nordicsemi.com/question/104118/adding-pwm-to-ble_template/ I&#39;ve set the TIMER_ENABLE, TIMER0_ENABLE, TIMER1_ENABLE and APP_PWM_ENABLED from 0 to 1. en-USTelligent Community 13Thu, 13 Apr 2017 13:06:18 GMThttps://devzone.nordicsemi.com/thread/83554?ContentTypeID=1Thu, 13 Apr 2017 13:06:18 GMT137ad170-7792-4731-bb38-c0d22fbe4515:16c0985e-01ff-4d88-a145-bfc91aa327bdBen<p>Thank you, I&#39;ve solved it. It really happened in that I don&#39;t enable PPI_ENABLED.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/83553?ContentTypeID=1Thu, 13 Apr 2017 12:52:45 GMT137ad170-7792-4731-bb38-c0d22fbe4515:5e3f7d64-caee-4641-9e85-e87c5395a752Sigurd<p>Hi,</p> <p>Looks like you need to have <code>#define PPI_ENABLED 1</code> in sdk_config.h. Remember that you can edit sdk_config using the <a href="https://devzone.nordicsemi.com/attachment/b253a146cac3c4199b68c5c54e51b779">configuration wizard</a>.</p><div style="clear:both;"></div>