Is the BNO086 IMU applicable (accurate and fast enough) for using to build a flight controller for a mini quadcopter (small brushed Coreless motors)?
Sure - the main concern is usually how fast the main flight controller can process/integrate its data, and whether the drone’s control is stable enough at the IMU’s accuracy (but you won’t know that for certain until testing)
Thanks. I’m about to order the Sparkfun parts, and I’ll see how it goes.
Working on it.
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Got my small quadcopter (BNO086 and ESP32 Thingplus) hovering fairly well. The power is tethered to a 5v3A voltage regulators. My brushed 720 Coreless motors are not powerful enough to fly unassisted so I have to hold on to it at the bottom of the power wires while it is hovering; yet is ‘feels’ like good balance response. So next step is to try 8520 motors with 3 inch props to see if I can get more thrust. And a Lipo that will provide the necessary current.
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Awesome - share a video when you do!
Here the quadcopter is fairly stable.
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The above image and video uses the 8520 coreless motors. While these motors/propellers did provide more lift, the quadcopter is still too heavy to fly. I don’t think my DIY skills can provide a frame that is light enough for these motors. My primary objective is the use the BNO086 IMU and the ESP32 microcontroller to obtain flight. So I’ll probably be switching to something like the Velox V2306 2550KV motors and AM32 ESCs; I’m still researching these. Also, currently with the IMU, I’m using the I2C interface. I plan to followup on a previous comment to use the SPI interface which might provide more consistent data thus better orientation stability.
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Sweet - There are a lot of 3D-printable frames you can print for free too