2.4 Allong the wall

Too close to the wall?

Too far from the wall?

Just the right distance?

What should you do?

Now you need extra sensors. If you'd like!

These are compatible with Fischertechnik. See the image on the right. Caution: They require 5V!!! Not 8.4V.

The yellow wires connect to I6 and I7.

The red and black wires connect as shown in the "Mounting" section. (And you’ll need to solder additional wires: use [male, male] jumpers for power, and these plugs for the signal.)

Of course, you can use other US sensors from Fischertechnik. But they are very large!