Fujimis Eggship IJN Akagi with some lights Part III

The shipyard is open again... ;)
I was thinking a long time how to turn on the lighting and then turn it off again. Should I use a switch or use the power supply as a switch?
In general a switch would be very nice, but I didn’t want it to be seen. These facts made it a bit complicated for me.
In the last months of my retraining, my trainer indicated me to a capacitive touch-switch and I was allowed to make some experiments with this special kind of switch.

capacitive touch-switch

I liked this switch and so I ordered two of it and began with some testing. The biggest problem was that I didn’t know how to activate the self-retention and there was no datasheet. I was lucky to find it with the labelling of the control-IC, it is possible to activate the self-retention with closing an open solder bridge. I gave it a try and it worked out! I got a full functional switch.

solder bridge

After the ordered bases arrived, I started to work on one of them because the switch only works when the distance between the fingers and the sensor-surface isn’t too big

bases made from bamboo

It was a lot of work to cut out so much material, but the result was compensating. ;)

the big hole... ;)

 The wiring had to be changed a bit, but it was nothing complicated.

circuit diagram

After the base was primed, I worked on the mounting and the contacts. Unfortunately I couldn’t place the model in the middle, but it still looks good. 


The only thing missing is the mark on the base so you can find the sensitive place. ;)

See you