GY-271 HMC5883L 3-axis Digita Compass Module Magnetic Field Sensor – Original Chip

Cool beans

Initially couldn't get flight controller to reliably communicate with this module, but then I popped off the 2 pull-up resistors (the absolutely TINY things right next to the SDA and SCL pads on the board) to ensure it would work with other devices connected to the bus, and from then on there have been no issues at all.

Great Deal.

Works as expected. Side story: Don't drop it. It breaks easily. My group partner and I were outside soldering jumper wires to this chip. Music was playing outside because there was a band concert at my University. If only I could attend the Spring Show. But I had to focus on my project. So we finished soldering. Then we walked back to the lab with our hands full. I tried opening the door and this chip fell. The music played on. People were cheering. I looked at the chip in shock. It was broken. I had to purchase a second one. I know it's common sense not to drop sensitive things like this. I just wanted to give you a story.

I needed a position sensor for my attic antenna and this worked perfectly. The QMC is supposed to be inferior to the HMC; however, it is more than adequate for my purposes! I.e., it is quite accurate in provided 360 degree precision, although in my application, it seems to have a margin of error of 2 degrees, which is still overkill for me.

Works as expected.

Worked well. A little difficult to mount with no mounting holes. Not plug and play.

nice

There is a lib in Arduino for the QMC5883L and it does work well.

Set this up with an arduino uno and integrated it into a ROS system. Put it on a chip socket that is permanently mounted onto a proto shield.