Rasmus Bækgaard

So, I read through the [bcm2538.h](https://github.com/CongducPham/LowCostLoRaGw/blob/master/Raspberry/bcm2835.h) file again, and found out I need to download it aswell. ``` wget http://www.airspayce.com/mikem/bcm2835/bcm2835-1.49.tar.gz tar zxvf bcm2835-1.49.tar.gz cd bcm2835-1.49 ./configure make sudo make check...

> I don't see why you need to download the bcm2538.h file because it is already in the package. No, you are correct. It present a small list stating it...

I think I located your problem, so I need you to confirm this. Try to reboot your RPi, and just run the program. I am rather confident, that the SX1272...