Seven Segment LED (NeoPixel/Arduino)

thingiverse

Update 5/13: Increased material around female pin section of case. Only 7segledcase1.stl changed - pin size remained the same. Update 3/13: Originally, there was a 2mm border around each segment due to smaller backplate segments than front plate segments (2mm is wall width). This seemed acceptable for alignment slop, but it ended up making the display harder to read. I added a front plate with identical segment dimensions as the back plate. I wanted large digits for my scorekeeping project using Arduino (ESP8266/Wemos D1) and WS2812/NeoPixels. To fit pixel strips easily into the device, I needed to design the case accordingly. This is two 7-segment displays. The backing plate has enough space to mount 3-4 LEDs from dense strips or two LEDs from less dense strips in each segment. Although I used two LEDs from a 60/m strip for this example. To build fully, you'll need: * Enough LEDs on strips to populate the backing plate (7 segments x 2 digits x 2 pixels per segment = 28 LEDs). * Hook-up wire to solder all of the strips. * A micro controller to drive them - sample source works with all Arduino-like devices. * A sheet of translucent but opaque material. I used copier paper in the sample and plan to switch to butcher paper for the final project. * Glue to hold the strips down and case closed. Cut and glue pixels to the backing plate. The segment manager source code doesn't care about wiring order, but you may need to adjust mapping to your wiring order. Slide paper or other material between backplate and faceplate. Then slide them into case pieces. The case has alignment pins that can be glued once tested. There's enough room between the back of the backing plate and back of the case to permanently mount a small micro controller without pins/pin headers, or you can feed wire through the slot in the case. Here's a sample counter: https://youtu.be/Krs2V0T__Cs And here's the source: https://drive.google.com/open?id=14WIE2fckgNkawZp10kC_oE4zWcMO0TAK