The circuit uses a 555 timer IC with a trimmer to adjust the sequence timing. When each step takes a while it can appear as if someone is going from one room to the next.
The design, testing, construction and installing it. The Circuit board is mounted directly under the layout table, with wires going up into the house. The roof of the house lifts off to access the rooms and its contents.
The design, testing, construction and installing it. The Circuit board is mounted directly under the layout table, with wires going up into the house. The roof of the house lifts off to access the rooms and its contents.
