Inverting UART input signal with PPI and GPIOTE&#39;shttps://devzone.nordicsemi.com/f/nordic-q-a/77878/inverting-uart-input-signal-with-ppi-and-gpiote-sHello, I&#39;m trying to receive an inverted UART signal on the Arduino Nano 33 BLE (NRF52840). I&#39;ve been able to invert the transmit signal okay using two GPIOTE channels and a PPI. Works great by sacrificing some GPIOTE, PPI and a pin. TX connects toen-USTelligent Community 13Mon, 26 Jul 2021 15:04:44 GMTRE: Inverting UART input signal with PPI and GPIOTE'shttps://devzone.nordicsemi.com/thread/321877?ContentTypeID=1Mon, 26 Jul 2021 15:04:44 GMT137ad170-7792-4731-bb38-c0d22fbe4515:0e07fa8a-cee5-4212-bedc-506c90e5a8f7CliffB<p>Kind of what I expected but thank you for the response. I&#39;ll use another pin.&nbsp;<br />Thank you</p><div style="clear:both;"></div>RE: Inverting UART input signal with PPI and GPIOTE'shttps://devzone.nordicsemi.com/thread/321727?ContentTypeID=1Mon, 26 Jul 2021 08:31:13 GMT137ad170-7792-4731-bb38-c0d22fbe4515:cfe67d89-fa14-423e-82b4-774a8ee3cf5cJ&#248;rgen Holmefjord<p>Hi,</p> <p>As you noticed, unfortunately it is not supported to have one GPIO assigned to multiple peripherals at the same time. You need to add the external connection to a second GPIO to achieve what you want.</p> <p>Best regards,<br />Jørgen</p><div style="clear:both;"></div>