Allard has adopted a more-or-less standard practice of providing the URL for any non-standard IDE libraries used in his code. For example, in his code he has:
The first #include does not provide a URL, which means it is distributed with the standard Arduino IDE. The second directive provides the URL where that library can be found and downloaded. You will need to install that library before you can compile that code. This group's web site has instructions for the proper installation of "external" libraries. Also remember that, once installed, you must shut down and reload the IDE for the new libraries to take effect.
From: Arv Evans <arvid.evans@...> To:[email protected] Sent: Saturday, May 13, 2017 5:50 PM Subject: Re: [BITX20] another modified Raduino
Michael? OZ9AEW
What Si5351A library should I be using?
Build options changed, rebuilding all In file included from /home/arv/Server/sketchbook/Bitx_40__Raduino__13_May/Bitx_40__Raduino__13_May.ino:3:0: /home/arv/Server/sketchbook/libraries/Adafruit_Si5351_Library/Adafruit_SI5351.h:44:29: fatal error: Adafruit_Sensor.h: No such file or directory ?#include <Adafruit_Sensor.h> ???????????????????????????? ^ compilation terminated. exit status 1 Error compiling for board Arduino Nano.
Obviously it is not the Adafruit library.
Arv? K7HKL
On Sat, May 13, 2017 at 2:44 PM, OZ9AEW <madsen1960@...> wrote: