We can first set the time on the clock by running a small script provided by the author of the library. Press install.įor the DS3231 library head to and follow the simple instructions on the page. In the Arduino IDE, navigate to Sketch > Include Library > Manage Libraries Then in the Library Manager search for Neopixel strip using the search bar. If you do not already have them you will need to install them. You need to have two different libraries installed in your Arduino IDE for this project 'Adafruit Neopixel' and 'DS3231 Simple'. 1x Sleeve5.stl - This one is specifically designed to house the electronics and includes air holes for ventilation and a hole for the photoresistor.Ĭonnect your Arduino to your PC via its USB connection and open up the code for this project in the Arduino IDE.6x Sleeve4.st - This has cutouts on both sides and a hole for the LED downlighter.10x Sleeve3.stl - This has cutouts on both sides.6x Sleeve2.stl - This has cutouts on one side and a hole for the LED downlighter.9x Sleeve1.stl - This one has cutouts on one side only.These are easily removed after the print is complete. I also added a brim so as to help prevent them from becoming unstuck from the print bed. U usually printed three at a time overnight. They took about seven hours each when printed at a 0.2mm layer height. This thin white front face is what allows the diffused light from the LEDs to shine through. There are five different styles of shelve sleeves to print depending on where they are going on the clock.įor every sleeve, I printed the first few layers in white and then switched to a wood infused PLA filament for the remainder of the print. Let's take a break from electronics and turn back to 3D printing. (Plus it would not be great fun to read either).Īfter you have finished installing the clock face LEDs it should look like the final image. It's a lot easier for you to follow this than for me to explain every connection in words. ![]() It shows you which lengths of wire to use where, the direction of the LED strips, and how to route everything. Now that I've explained and shown you the first few connections you can follow the rest using the diagram I have added above (the one on a dark background). When you get to seventh LED strip you need to attach a 37cm set of wires to its outgoing side instead of the usual 23cm wires. Repeat the same steps four more times following the path around the clock as shown in the diagram above. The wires coming from this one are routed through the support and turn 90 degrees to the left up into the next support. The adhesive backing can then be removed on this strip, some glue applied to the white LED mount and the strip fitted ontop. ![]() Solder the incoming side of the LED strip to the wires just routed around the corner from the previous strip. This will mean the wires are completely hidden when we finish off the clock by adding the 3D printed sleaves to the shelves (which we have not yet printed yet so don't panic!).įor the next strip, take another set of 23cm long wires and solder these to the outgoing side (the end the data flow arrows are pointing towards) of a fresh strip of nine LEDs. Whenever you are routing wires along the outside perimeter of the clock ensure you use the inside holes on the wire guides. Now route the wires at the corner of the clock face down through the wire guide on the support they are on, through and into the adjacent support and up. Remove the self-adhesive backing from the rear of the LEDs and also apply some glue to the top of the LED mount (for extra grip as I found sometime mine would come unstuck without the additional glue) you can then position the strip in place ensuring that the data directional arrows are pointing towards the top of the clock. Attach two separate sets of 23cm long wires to both ends of one of the 9 long LED strips from earlier. Our first LED strip will sit on the white LED mount above the unique support we printed to house the electronics in the top right corner. Pay good attention to these as you assemble your clock. There are little arrows going along the length of the LED strips which represent the direction of data flow. ![]() The order in which the strips are connected, and their orientation, is very important. Now that the LEDs and their wires are prepared we can start to assemble them onto the front of our clock face.
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