The chip that drives Magneto is the high accuracy AS5048A. If the external MCU takes on the tasks of linearization and averaging, it can be precise down to 0.05 of a degree, in 14-bit resolution (compared to Angle click’s 12-bit).
The high bitrate would be useless if the sensor was suspectible to noise, but this one isn’t – it’s tolerant to misalignments, air gap variations, temperature variations, even stray magnetic fields.
Robotic joint positioning, industrial motor position control, electronic power steering, digital potentiometers – these are just some of the applications where Magneto click can be employed for. In our own example, we imagined it was for controlling a rudder.
Other differences compared to Angle is that Magneto click has an SPI interface, with an additional PWM to output absolute position information. Magneto click also uses a 5V power supply only, whereas Angle can do both 3.3V or 5V.
So there you have it, two solutions for angle measurement. One more cost-effective (Angle click), other more accurate (Magneto). If you’re interested in accuracy, more details on Magneto click on the product page. The Libstock library is also prepared.