User manual

2 Design and Assembly

Potentiometer

Next, you attach the potentiometer. Insert it into the

designated opening in the ﬂap lid. A small clip prevents you

to insert it the wrong way. Fix the potentiometer with ring

nut and washer. Turn the axis to the le until the switch

opens, which is indicated by a low clicking noise. Aer that

you use the grub screw to attach the turning knob to the

potentiometer so that the marker points to OFF.

Attach the circuit board to the ﬂap lid so that the com-

ponent side faces inwards. The LEDs soldered to the circuit

board are pushed through the two 5mm holes in the ﬂap lid.

In this way the circuit board is ﬁxed to the lid. If this ﬁxation

is not suﬃcient, you can attach the LEDs with a little all-

purpose glue. Also, you can additionally ﬁx the board with

(double-sided) adhesive tape.

Now you connect the leads of the potentiometer with

the respective soldering pads. For this purpose you use

short pieces of hookup wire. Strip the ends of the wire ac-

cordingly. Alternatively you can also use bare pieces of wire.

The leads of the switch integrated in the potentiometer are

soldered to the pads S1 and S2, the proper potentiometer

leads to the pads P1, P2 and P3.