These are sensors using infra-red light. You can use them on
your robot, for example, to detect
lines on the RoboRugby table, to detect balls or obstacles, or to pick
up signals from the navigation beacons at
the ends of the table.
Name
Picture
Quantity
Location
Comment
Distance sensor
2
Z
Sharp GP2D12 - measures distance to objects using pulses of
infra-red light. It comes mounted on Lego bricks, with wiring, ready to use.
It will only work in port 4 or port 5 on the Handyboard.
Infra-red beacon receiver
circuit - picks up signals from the navigation beacons. It will only
work in port 8 on the Handyboard. There is a similar beacon receiver
built into the Handyboard.
Tubular shield for beacon
receiver, to ensure that it only receives light from certain directions.
Cut this to length as required.
Beacon receiver shield
1
Z
Open shield for beacon receiver,
to ensure that it only receives light from certain directions. Cut out
one end and cover the top with black tape.
Reflective optical sensor circuit
2
Z
Complete
reflective sensor using an OPB704 - emits infra-red light and measures the
brightness of the reflected light. Can be used to detect lines on the table
or for other purposes. It will only work in Handyboard ports 2,
3 or 6, or in higher-numbered analogue ports on the expansion board.
The OPB704 is also available as a component, so you can build your own
sensor - see the optical parts page for details.
