Wemos 8266 WiFi "Marquee Scroller" Clock Case
This is a modified case for the excellent "Marquee Scroller (Clock, Weather, News, and More)" by Qrome on github. Information for the project is here:
https://github.com/Qrome/marquee-scroller
and here:
https://www.thingiverse.com/thing:2867294

There are various sizes of the BL-M07X881 LED DOT MATRIX display modules used in the project. Some have their matrix units spaced close together and others have up to a 1.5mm gap between the individual display sections. The height of these units is always about 32mm but lengths of modules have 128.5mm, 129mm or 131.5mm lengths.

This case will allow any one of them to be used. It has a modular design that allows for easy assembly and provides;

1. Choice of front bezels
2. Choice of front light grid inserts
3. Printable diffuser inserts
4. Different colors
5. Adapts to most display boards
6. Easy Assembly

There are two front bezels. One has an offset and needs to be printed with a raft layer for support and the other is flat and can be printed directly on the print bed.

The diffuser filament can be white PLA and printed separately or meshed together with the LED grid and printed in two color layers.

The LED DOT MATRIX display modules come in different colors (blue, red or green). They usually have a
5-pin header soldered on one side. Bend them up so the DuPont connector wires will easily fit in the case. The blue LED module looks very nice when used with a diffuser cut from the anti-static bag that the LED modules are packaged in. I cut this film to size then place it between the grid and display module.

The entire display section (display module, grid, bezel) can be assembled and then slipped into the front of the case by inserting the header end first then angling the assembly in. Everything is a friction-fit but could be glued if desired.

Use small self tapping screws on the back cover. Screws salvaged from other electronic equipment work well.

To easily bend the header pins on the display module, use a female Dupont connector over the pin and bend them up one at a time. Best to use a female connector different from the one that will be used in the final assembly as the bending process will loosen that connector. Some soldering required to attach wires to the Wemos D1 mini WiFi module.