How to make a beep on nRF51822 with BLE SD and what timer to use?https://devzone.nordicsemi.com/f/nordic-q-a/2086/how-to-make-a-beep-on-nrf51822-with-ble-sd-and-what-timer-to-useHi, I need to drive a piezo buzzer. Just need to make a simple beep function(s) that one call will start generating a specified frequency on specified pin and other call will stop it. Desired freq. is about 3,5kHz. So I would use some timer thats outputen-USTelligent Community 13Thu, 03 Apr 2014 17:32:44 GMTRE: How to make a beep on nRF51822 with BLE SD and what timer to use?https://devzone.nordicsemi.com/thread/8945?ContentTypeID=1Thu, 03 Apr 2014 17:32:44 GMT137ad170-7792-4731-bb38-c0d22fbe4515:c55fbd5a-89db-4254-9045-7d3eec77939eMartin<p>OK, seems that I found usable piece of code - the timer-driven LED in module LED.C from ble_app_hrs project. It use timer1 and PPI channel 0 that should be free with BLE SD. I just had to change prescaler and timer compare value to be set according to desired frequency and it seems that it works...</p><div style="clear:both;"></div>