https://test-devzone.nordicsemi.com/f/nordic-q-a/87911/nrf24l01Dear All I used nRF24L01 antennas with external antenna for data reception and transmission at different speeds (256KBPS, 1MBPS and 2MBPS) for a while everything worked but after several hours of operation the antennas no longer work, they seem burneden-USTelligent Community 13 Non-ProductionMon, 16 May 2022 17:14:58 GMThttps://test-devzone.nordicsemi.com/thread/368106?ContentTypeID=1Mon, 16 May 2022 17:14:58 GMT137ad170-7792-4731-bb38-c0d22fbe4515:b5aa6f72-d178-44bc-ab95-7ddf6278bd35ketiljo<p>You should reach out to the module manufacturer in this case.&nbsp;</p><div style="clear:both;"></div>https://test-devzone.nordicsemi.com/thread/368091?ContentTypeID=1Mon, 16 May 2022 14:37:07 GMT137ad170-7792-4731-bb38-c0d22fbe4515:40a9decd-8fa1-457b-8b7c-2cc47f2b94b0user116137<p>the supplier is HALJIA taken from Amazon. The antenna type is the nRF24L01 ducky</p><div style="clear:both;"></div>https://test-devzone.nordicsemi.com/thread/368087?ContentTypeID=1Mon, 16 May 2022 14:27:38 GMT137ad170-7792-4731-bb38-c0d22fbe4515:d81b9bcc-5b21-458f-86ba-44846cb91babketiljo<p>The nRF24L01+ inputs are 5 V tolerant so even if the Arduino is powered with 5 V, it will not damage the device.&nbsp;</p> <p><br />What kind of modules are you using and where did you get them?</p><div style="clear:both;"></div>https://test-devzone.nordicsemi.com/thread/368006?ContentTypeID=1Mon, 16 May 2022 09:37:05 GMT137ad170-7792-4731-bb38-c0d22fbe4515:78fa3413-324d-45d8-9686-c2d89703c8b8user116137<p>the module is connected to a stm32f303 discovery board obviously in SPI by directly connecting the CLK, MISO, MOSI, CE, CSN pins to the respective antenna pins, so I have not inserted for example additional pullup resistors on CLK or capacitors between the vcc and the gnd</p> <p>The pinout is</p> <p>STM32&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;nRF24L01</p> <p>PA5 CLK&nbsp; &nbsp; &nbsp;--------&gt; CLK</p> <p>PA6 MISO&nbsp; &nbsp;<span>--------&gt; MISO</span></p> <p>PA7 MOSI&nbsp; &nbsp;<span>--------&gt; MOSI</span></p> <p>PE7 CE&nbsp; &nbsp; &nbsp; &nbsp;<span>--------&gt; CE</span></p> <p>PE8 CSN&nbsp; &nbsp;&nbsp;<span>--------&gt; CSN</span></p> <p>the gain of the antenna is set to 0 db</p> <p>This is one module.</p> <p>The other module is connected to an Arduino Nano using the SPI of the NANO</p> <p>The pinout is</p> <p>NANO&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;nRF24L01</p> <p>D13&nbsp; &nbsp; &nbsp; &nbsp; --------&gt; CLK</p> <p>D12&nbsp; &nbsp; &nbsp; &nbsp;&nbsp;<span>--------&gt; MISO</span></p> <p>D11&nbsp; &nbsp; &nbsp; &nbsp;&nbsp;<span>--------&gt; MOSI</span></p> <p>D7&nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;<span>--------&gt; CE</span></p> <p>D8&nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;<span>--------&gt; CSN</span></p> <p>the gain of the antenna is set to 0 db</p><div style="clear:both;"></div>https://test-devzone.nordicsemi.com/thread/367999?ContentTypeID=1Mon, 16 May 2022 09:08:07 GMT137ad170-7792-4731-bb38-c0d22fbe4515:d6b4e289-9aec-4083-9378-d5dfffaa0a08ketiljo<p>The nRF24L01+ can handle 3.6 V so 3.0 V shouldn&#39;t cause any damage. How does the module look like and how do you connect it and to what?</p><div style="clear:both;"></div>