NXT Angle SensorThis baby had been announced prematurely at the beginning of this year when Lego Education accidentally ran its mouth in their catalogue.  Now it’s finally available to the public, the HiTechnic Angle Sensor.

This thing is so ridiculously low friction when you turn it that you wouldn’t even know it was there.  With it you can measure the following:

  • Absolute Angle: the rotation angle of an axle from 0 degrees to 359 degrees, accurate to 1 degree.
  • Accumulated Angle: the accumulated multiple rotation angle measured since the last reset function was performed.
  • Revolutions per Minute (RPM): the current estimate of rotation rate from 1 RPM up to 1,000 RPM.

The absolute angle feature is a real life saver, no longer will you need touch sensors on your robots to get a recalibrate your motors’ tachos.  I wish I had them when I was working on this thing: [LINK].

A driver for this sensor will be included with the next release of the Driver Suite.