Hardware setup

Skeleton setup


According to the stencil layout, for each LED a hole needs to be prepared. The total number of 114 holes makes this pretty tedious.


To place the Raspberry Pi within the skeleton, some sawing is required…

LED setup

After Soldering

After soldering the LED strip, the clock looks like this. The soldering needs to be done according to the wiring layout. E.g. based on 11*10 letters:

Examplary wiring layout (front side)

Further wiring layouts are available. Assure to connect the LED strip in the right direction. Little arrows indicate that along the strip.

Raspberry Pi setup

Software Update

Before you mount your raspberry inside the clock, install the latest Raspbian, connect it to your local wifi and ensure that you can ssh to it.

Button setup


At this stage, the displayed components are required for the further setup.

Wiring concept

Conceptual wiring layout to connect RPi, buttons, etc. See also Power connectors, USB-Pinouts

Wiring detail

The connection of buttons, LED strip and power brings the wordclock close to its final hardware configuration.

Wiring button

Buttons with attached resistors. The center button has already its final tip.

Stancil setup

Stancil setup 01

Fixation of 4 screws within the 4 corners of the stancil using two-component adhesive.

Stancil setup 02

Allows to fix the stancil with screw-nuts to the sceleton.

Stancil setup 03

To increase stability, consider an overlapping of the frame to hold the major weight of the stancil.

Final clock

Final backside

Backside of the final wordclock.

Final backside detail

Closeup of the final wordclock.

Video documentation on the wiring layout

Link to wiring documentation