https://devzone.nordicsemi.com/f/nordic-q-a/29624/reading-multiplexed-saadc-input-pinHello, I need to read SAADC input pin of nRF52832 that is multiplexed and wonder what the optimal strategy is to implement that. Especially: setting a ppi channel so that a timer compare event is triggering sample task in SAADC does not seem to been-USTelligent Community 13Thu, 25 Jan 2018 19:53:34 GMThttps://devzone.nordicsemi.com/thread/117676?ContentTypeID=1Thu, 25 Jan 2018 19:53:34 GMT137ad170-7792-4731-bb38-c0d22fbe4515:efa63891-ee76-48a7-ada8-06c4b2d38fd6J&#248;rgen Holmefjord<p>It is possible to set/clear GPIOS using GPIOTE and PPI, without interrupts/CPU work, but if you have to set different pins between each sample, you will quickly run out of GPIOTE and PPI channels. I think that controlling the pins from timer callback will be the most practical solution.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/117678?ContentTypeID=1Tue, 23 Jan 2018 20:53:19 GMT137ad170-7792-4731-bb38-c0d22fbe4515:dbb1c6e7-b44e-42dc-a06d-b9b656d35ca8kont40<p>I have several resistance sensors; one end of those is connected together passed to the input of a current-voltage converter. The output of the converter enters the SAADC. The other end of each sensor is connected/not connected to GND through an individual pin of the nRF53832, and the state is controlled by the program code of it.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/117677?ContentTypeID=1Mon, 22 Jan 2018 13:09:37 GMT137ad170-7792-4731-bb38-c0d22fbe4515:c20fde6f-d27f-4c16-a472-a7663a4cc1baJ&#248;rgen Holmefjord<p>How are you controlling the multiplexer? If you need to control it between every channel, I don&#39;t think there is any more elegant solution than what you propose. You will have to provide some more details on the multiplexing solution before we can help you find the best solution.</p><div style="clear:both;"></div>