Adafruit 9-DOF Absolute Orientation IMU Fusion Breakout - BNO055

My project required a magnetometer for direction. I purchased QMC5883l to achieve accurate directions for my model boat. No matter how many times I tried to calibrate it to get right heading no success. The BNO055 worked right out of the box with the self-calibration feature. Now my navigation system works as expected. The sensor does have a feature where you can do some calibrations if needed but mine worked right out of the box! Incredible HIGHLY RECCOMEND!

The product arrived incredibly fast—faster than I even expected! While it might be a bit pricey, it’s definitely worth the investment if you want your project to achieve excellent balance and functionality. However, a word of caution: do not purchase this unless you already own a soldering kit. This item does not come pre-soldered, so you’ll need to be prepared for some hands-on work. As a heads-up, I haven’t finished the soldering process myself yet, so I can’t fully confirm how well it functions. That said, it seems very promising so far, and I’m optimistic about its potential. Overall, just make sure you’re equipped and ready for the task, and this product could be a fantastic addition to your project.

If you are building a drone, flight computer, AHRS, or other project that requires accurate Eular or quaternion vectors, skip all the googling for equations and put this thing in "fusion mode" (see bno055 data sheet). The on board mcu will do all the heavy lifting work for you with great accuracy and speed! Another tip is to google up the Bosch videos and app notes rather than the hobby sites. They make it far easier to learn the chip and have a lot of libraries and instructions.

I had tried other 9D0F chips that just output the raw data of all the devices and that required running a Madgwick/Mahoney or similar fusion filter and I couldn't get them to provide stable heading, pitch, roll readings. I was up against a deadline (Halloween) to get it working. Saw this chip and glad I did. This chip already does all that and it is easy to calibrate by just holding it in various positions. Worked great and provides accurate stable readings at up to 100Hz rate.. Now if only my soldering skills were as good as this chip.

I'm not great at programming so it was a little confusing to get working but once I got it working it's super acurate

Nice module for one-offs or prototypes (my application). But I understand these are to be discontinued. I hope the replacement is as good!

This module is the quality I expect from Adafruit and well done. The Arduino IDE library that supports this module is also very well done, easy to use, and made integration of this module into my project pretty painless.

It was fairly easy to set up with the tutorial they have on the Adafruit website and at first it worked great but after a short while the System calibration wouldn't reach 3. All of the sensors (accelerometer, magnetometer, gyroscope) would all be at full calibration but it still wouldn't have full system calibration. I learned that this is a common problem for this sensor so if you are looking to use it for the Euler or Qauterion vectors don't get this sensor. It would be great for just the individual readings from the accelerometer, magnetometer, gyroscope.