The display board for this project is essentially a small wooden panel with a kickstand and holes drilled to fit 8 LEDs.
I used the remnants of a chopping board that had split in half to create mine.
1. Start by cutting the board to size. It’s up to you how big it is, just make sure it’s large enough to fit the number of LEDs you need and to mount the Pi.
2. When this is done use a pencil to mark where the LEDs should be, making sure to leave room for the Raspberry Pi and kickstand. Try to leave a good margin around the edge of the board to avoid the risk of the wooden splitting when you start drilling the holes.
3. Now you can drill the holes. Choose a drill bit that matches the diameter of your LEDs. Ideally the LEDs will be held in just using a tight fit, so start of by using a smaller drill bit and then enlarge the holes if necessary. Make sure to test the holes by fitting the LEDs in and then removing them.
4. Once this is done, give everything a good sanding down. You may also wish to curve the edges of the panel to give it a softer look. I did this with my Dremel, but I expect you could just use sandpaper with some patience.
5. Use some more scrap wood to create a kickstand. I used my dremel to shape this, but again some sandpaper and patience should do the trick. Once you’ve crafted it use some wood glue to fit it into place at the bottom centre of the panel. I used some blu tack to hold it in place and test the position before glueing it on.
6. (Optional) You can now apply some varnish to the board to give it a nicer finish. Applying it is simple — just brush it over lightly, let it dry, and repeat a couple more times.
7. Once it’s completely dry, insert the LEDs into the drill holes. It may be useful to be consistent in how you position them to ensure that you get the polarity right when wiring everything together. For instance, I fitted them so that all of the positive legs (the longer ones) came out at the top. If your LEDs don’t fit completely snuggly you can use a bit of hot glue to keep them in place.
8. Now you can also mount the Pi. We’ll be removing it to do the soldering, but it’s good at this point to know exactly where it will sit. I used some screws that came with a case and screwed them directly into the board.