Library installed but won't verify

Other Hardware Sensors
1

Arduino forum,
I'm using NANO with Arduino 1.8.7. I know this is old stuff but this is on an old laptop and I'm stuck with this version.

I have other sketches working but now I'm trying to include the library Adafruit_HMC5883_Unified and when verifying I get "Adafruit_HMC5883_Unified no such file or directory". If I look in "Manage Libraries" it shows it as "Installed".

I must be missing something.

jerdon

2

The header file to include is actually called Adafruit_HMC5883_U.h

3

van_der_decken,
Thanks for the reply.

That worked but that specific name doesn't show up in "Manage Libraries".

jerdon

4

The name of the library does not always equate with the name of the header file in it that you have to include. With some general purpose libraries, you may even have to select which header file from several in the library to include.

5

When a Library have Example's , then just open a example and look how the header file is included.

6

the library has exact one example:

load the example and check if it compiles.
if not - post the error messages from the compiler to the forum.

7

noiasca,
Thanks for the reply.

I had already found Kevin's program on the internet.

When I first ran Verify/Compile it couldn't locate Adafruit_HMC5883.U.h however it is okay now.

I ran slave_Address and it reported:
0x0D // not sure which one this is.
0x028 // this is probably my BNO055 which works

When uploading the sketch I get the following in a serial monitor.
X: -0.09 Y: -0.09 Z: -0.10 uT
Heading (degrees) 237.61

This reading repeats no matter how I turn the test fixture.

There is a loop function but I'm not too familiar with how a Arduino runs functions.

Any suggestions?
jerdon