MPU9250 headingMPU9250heading

A simulation of how the part behaves — not a recording of mine. Bench photos go in the evidence below.

1. 01 · Nine axes→

   Motion, plus a field

   A gyroscope, an accelerometer — and an AK8963 magnetometer on board. Three more axes, measuring the magnetic field instead of motion.

2. 02 · North→

   North, give or take

   A magnetometer points at magnetic north, give or take everything metal nearby. Motors, steel and laptops bend the field, which is why compasses need calibrating before you believe them.

3. 03 · Heading■

   A heading that holds

   Combine the magnetometer with the accelerometer's sense of down and you get a heading that stays put even when the board isn't lying flat.

What I actually did with it

• 01On the bench next to the MPU6050

[ADD — what you built with it]