https://devzone.nordicsemi.com/f/nordic-q-a/2554/rx-stopped-workingNRF24L01+ paired to Arduino (2 units) Using Mirf sample code for server &amp; client App worked initially but stopped after some tweaking of code. Uploaded original versions without successful RX of either module. Q: Is it possible that close proximityen-USTelligent Community 13Fri, 23 May 2014 13:31:32 GMThttps://devzone.nordicsemi.com/thread/10159?ContentTypeID=1Fri, 23 May 2014 13:31:32 GMT137ad170-7792-4731-bb38-c0d22fbe4515:40fd9f83-fc72-4312-806e-56140de0a461H&#229;kon Alseth<p>Hi,</p> <p>If you&#39;re using modules that has a PA, then placing them close to each other may damage the device, as the input power could exceed the 0 dBm max input. The recommendation is then to detach the antenna (if external antenna is used) or reduce the output power of both RX and TX to -18 dBm.</p> <ol> <li>If you check the power consumption of your devices and compare this to the numbers in the datasheet, you should be able to see if some pins are damaged. Set the device into one of the standby-modes and compare.</li> <li>You can check the pin &quot;VDD_PA&quot; to see if the transmitter is sending any data. It will be active when a transmission goes over-the-air.</li> </ol> <p>Best regards Håkon</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/10158?ContentTypeID=1Mon, 19 May 2014 02:25:39 GMT137ad170-7792-4731-bb38-c0d22fbe4515:b08d297a-70ef-4a8b-8d9c-18fb2014fa70pmc<p>Correction 10mm should read 10 cm</p><div style="clear:both;"></div>