Two or 4 four-axle Piko wagons from Reko
(or the other way around) should see a light...

This is to be fed from a Li-ion battery of the type 18650 and switched via toggle switch in the car floor. For charging the battery is supposed to have a charging socket that connects to the locomotive's chargers is compatible.

The normal passenger coach...

Since these cars have toilet compartments with frosted glass windows, the electronics were placed in these compartments.

To do this, the floor of the toilet compartment had to be removed.

In order not to spoil the interior, the two toggle switches were placed under benches.

A switch with 2 positions was used for the interior lighting used. With a further switch with 3 positions can be independent of the interior lighting, the tail lighting can optionally be on one of both ends are switched on.

The electronics of the passenger car:

A small hand-flexed circuit board is used to hold the components and to wire the peripherals.

The circuit board is attached to the floor of the car with 2 screws on such a way that it also fixed the LED socket. The switches are on the left edge of the board connected. 2 solder pads are used for mechanical attachment and contacting the stepUp switching regulator (minus and out-plus) via 2 stiff copper wires. In-Plus is contacted with stranded wire. For connection the 3 LED circuits are provided by a 4-pole pin header. On the right is the battery chamber mounted for the accumulator.

In the meantime, the switches have also been connected.

Both switches have 2 levels. One level is used to switch the negative line between battery and switching regulator used, the other level for switching the minus lines of the 3 LED circuits. So is ensures that the switching regulator only loads the battery when an LED circuit is switched on.

For the charging socket, a cutout had to be flexed (and filed) in the body:

The gap between the frame and the body is due to the fact that the car is not yet screwed shut.

To illuminate the end of the train, red LEDs with a diameter of 5 mm were glued into the lights.

Since the lights tend to fall out, they were on the occasion fixed with glue. The LEDs were connected using small ones flexed circuit board pieces as solder point carriers.

In order to have only one cable between the frame and the upper part, in the roof the toilet a piece of circuit board material (flexed soldering surfaces) screwed, to which the flexible supply line from the on the frame placed electronics was soldered on.

This board carries the two SMD resistors for the train circuit LEDs and is used to connect the LED strip and the (solid) cables the tail-end LEDs.

The SMD resistors can be seen on the top right of the board. The connections from top to bottom: minus for train connection 1, Minus for end of move 2, minus for interior lighting and plus as common for all 3 circuits.

The tail-end LEDs on the other end.

Here you can also see that the self-adhesive light strip of the interior lighting is also attached with wire clips.

The cables to the rear-end LEDs were laid under the roof and fixed with textile adhesive tape.

The locus compartment seen from below:

The cable is now connected to the electronics:

Now shut it....

Sometimes slightly blurred without flash with interior light ...

...and train end...

and now switched off on the umbilical cord of the charger.

And now the passenger coach with a luggage compartment...

The cut-out floor of the locus compartment:

The toggle switches...

could not be placed in the middle of the car unfortunately because there was no space. But they do not hinder the bogie.

The electr(on)ics built into the toilet compartment ...

...with wiring of the switches

with interior decoration.

View of frame and attic. Since this car has a few more compartment partitions, a full-length light band could not be used. Therefore, the distribution board has become a bit generous sized and placed in the attic.

This meant that several short LED strips could be installed individually in the compartments and connected by means of jumper wire. The connection of the Train end LEDs are made via jumper wire too. A couple of plasters off Textile tape fix the wiring.