Geeetech

I can confirm now that the wiring is correct, SDA-->A4; SCL-->A5. Since it's a signal wire, I ran the program with both configurations
(just to confirm that is not a an incorrect PCB naming).

There is a guy on a forum http://dsscircuits.com/articles/the-mysterious-hmc5883l.html , saying that on ...

Last week I received the magnetometer, I tried but NOT working.

I followed the https://www.loveelectronics.co.uk/Tutorials/8/hmc5883l-tutorial-and-arduino-library without any luck.

I did a try adding "two 'pull-up' resistors to enable I2C. For this, connect two 4.7k or 10k resistors between SDA ...