https://devzone.nordicsemi.com/f/nordic-q-a/48924/nrf52840-radio-receiver-problemI try to communicate with NRF52832 with NRF51822 for the example radio receiver and works well with SDK5 12 3 when I try to communicate with E73 (NRF52840) board(E73(2G4M08S1C) , with SDK 5 15 2. I think the TX RX is 0.06 or 0.08. is that correct? en-USTelligent Community 13Tue, 25 Jun 2019 13:13:53 GMThttps://devzone.nordicsemi.com/thread/194671?ContentTypeID=1Tue, 25 Jun 2019 13:13:53 GMT137ad170-7792-4731-bb38-c0d22fbe4515:ab04d58d-fd3e-4e46-8f96-860e7b3480faawneil<p>What <strong>debugging</strong> have you done?</p> <p>Your title says &quot;<em>radio</em> receiver problem&quot; - but your post talks only about wired UART connections.</p> <p>You could check your hardware connections with a simple app to toggle GPIO pins ...</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/194644?ContentTypeID=1Tue, 25 Jun 2019 12:24:02 GMT137ad170-7792-4731-bb38-c0d22fbe4515:7b542c27-e045-41dc-8306-b6ca8406e953Hung Bui<p>Hi Pun Tim,&nbsp;</p> <p>Please state exactly what kind of communication you are trying to make. Is it UART or Radio ?&nbsp;</p> <p>Which exact example you based your code on ?&nbsp;</p> <p>Please provide the full schematic of your setup, including the 2 chips. How they connected together.&nbsp;</p> <p>What should happen when you press the button ?&nbsp;</p><div style="clear:both;"></div>