How to convert crt file to c header file?https://devzone.nordicsemi.com/f/nordic-q-a/96924/how-to-convert-crt-file-to-c-header-fileHello, in DevAcademi - lessone 4 excercise 2, need to convert crt file to c header file, once running the command &quot;python crt_to_header.py&quot; i&#39;m getting error &quot;FileNotFoundError: [Errno 2] No such file or directory: &#39;server_certificate.crt&#39;&quot; whaten-USTelligent Community 13Wed, 22 Feb 2023 13:29:40 GMTRE: How to convert crt file to c header file?https://devzone.nordicsemi.com/thread/411378?ContentTypeID=1Wed, 22 Feb 2023 13:29:40 GMT137ad170-7792-4731-bb38-c0d22fbe4515:f1de6031-ecda-405e-aaf2-bad9b0b1b9f6Ronensol<p>i followed the instructions but for some reason the python script can&#39;t open .crt file for read,&nbsp;</p> <p>so i took it from repo of the course.</p> <p>Thank you</p><div style="clear:both;"></div>RE: How to convert crt file to c header file?https://devzone.nordicsemi.com/thread/411297?ContentTypeID=1Wed, 22 Feb 2023 10:03:19 GMT137ad170-7792-4731-bb38-c0d22fbe4515:38482919-1c8e-4179-8fa9-1270fc9e4cdeAli Aljaani<p>Hi ,</p> <p>You need to download the the certificate from here&nbsp;<a id="" href="https://test.mosquitto.org/">https://test.mosquitto.org/</a>&nbsp;</p> <p><img src="https://devzone.nordicsemi.com/resized-image/__size/640x480/__key/communityserver-discussions-components-files/4/pastedimage1677059650176v1.png" alt=" " /></p> <p>Store it in the i<span>n the exercise root directory of the application, and&nbsp;make sure to name it:<strong>&nbsp;</strong><code>server_certificate.crt .&nbsp;</code></span></p> <p>The Python script expects this file to be placed and named as such.</p> <p>This is explaied in step 3 of the exercise.&nbsp;<a id="" href="https://academy.nordicsemi.com/topic/lesson-4-exercise-2/">https://academy.nordicsemi.com/topic/lesson-4-exercise-2/</a>&nbsp;</p> <p>If you have any doubt, the solution is also avaiable in the repo of the course <a id="" href="https://github.com/NordicDeveloperAcademy/Cellular-IoT-Fundamentals/tree/master/lesson4/cellfund_less4_exer2_solution">https://github.com/NordicDeveloperAcademy/Cellular-IoT-Fundamentals/tree/master/lesson4/cellfund_less4_exer2_solution</a> .&nbsp;</p><div style="clear:both;"></div>