Materials List: Rotary Encoders & Human-Computer Interaction

Each group needs:

  • 1 computer ball mouse

Note: Computer ball mice can be purchased online at Amazon, Ebay, lessEMF or other resellers for ~$10 each; ball mice, not optical mice, must be used. The mouse should have a USB connection; adapters can be purchased online at Tiger Direct. Tracking mice, with a ball mechanism (not an optical mechanism), will suffice.

For the LEGO MINDSTORMS EV3 rotary encoder demonstration setup: (Note: In advance of the activity, prepare one LEGO MINDSTORMS EV3 rotary encoder for each group.)

Note: This activity can also be conducted with the older (and no longer sold) LEGO MINDSTORMS NXT set instead of EV3; see below for those supplies: