The clips are designed with a few different angles so you can make all sorts of characters and letters.
The NeoPixel strips are pretty flexible so they can easily bend to form different shapes.
Just press them in between the clips and adjust the position to spell out words.
Cut strips to size
You can cut the NeoPixel strips by following the visible lines across the back side of the sheathing.
To reveal the solder pads, you’ll want to carefully cut through the silicone while leaving a strip over the LED so the lightning is still diffused.
Labels are printed on the flexible PCB so you can see what the connections are for power, ground and data.
You can tin the pads by applying a bit of solder using the tip of the soldering iron.
Silicone cover stranded core ribbon wire can be used for connecting multiple strips together.
Multiple strips are daisy chained together to spell out the word, “BUSY” but it doesn’t have to be letters.
The wiring was sized and planned so the animations flows from one letter to the next.
The tolerances are tight and the silicone sheathing provides a decent grip, allowing you to fine adjust shapes.
The Feather is positioned nearby with the battery snap fitted close to the center.
A slide switch is installed near the edge of the base plate so the sign can easily be turned on and off.
Press fit by inserting the slide switch at angle. The metal tabs on the sides can be adjust to increase the tolerance of the fit.
Attach lipo battery
The 2200mAh lipo battery can slide into the holder. Position so the battery and cable can reach the Feather board.
Adjust height clearance
Extra bricks can be used to raise the base plate away from the door.
This way there’s enough clearance for the components on the back.
A wall mount part is snap fitted to the top middle brick so it can be hung on the door.
We found a thumb tack or hook was strong enough to hold the weight of the sign and components.
This guide was first published on Aug 12, 2020. It was last updated on Aug 12, 2020.
This page (Assemble) was last updated on Oct 21, 2020.