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23C: Slide the spacer tube over the sensors into
the sensor hole.
23D: Bottom view of spacer tube
23E: Arrange the sensor so they stick
straight out the side of Herbie
23F: Solder the ends of the whiskers to the nose and
remove the spacer tube. The whiskers shouldn’t be
touching any edge of the hole!
Solder the whiskers to the nose
Whiskers should
not touch the
edge of the hole!
23G: Nab the forward set of whiskers
with your pliers, and give them a twist forward
23H: Bend the other side’s whiskers so it matches
the first set. Pretty snazzy Herbie the Mousebot, hmmm?
23I: TEST the sensors. Just like you did with the tail sensor,
turn it on, and bend the sensors to make sure they activate.
15
Look in your kit for a short piece of heat shrink tubing. We’re going
to use it as a spacer while soldering the whiskers. Slide the tubing
over the end of the sensors, and into the sensor hole. This keeps the
whiskers from touching the sensor hole, which is only supposed to
happen when they hit something and make it “Backup!”
Solarbotics Herbie the Mousebot