Retro 7 Segment Clock (Complete)

thingiverse

Here's a rework of something I did a while back. This time it's not only the display modules, it's the complete clock as shown in the pictures. <b>Updated software sketch v5</b> Massive cleanups, improved color handling and ldr support, check the sketches section for details. <b>XL</b> Even bigger with 4 leds per segment: https://www.thingiverse.com/thing:3136688 <b>SE (Small Edition)</b> https://www.thingiverse.com/thing:3095715 The SE also features a complete build video. This version uses continuous led strips as much as possible - when building this, there are less than 20 wires to solder! <b>Updated software version - v4</b> Besides more comments v4 adds automatic brightness correction by using a photoresistor. <b>Updated software version!</b> I've uploaded sketch v3 which adds some features. Also I've added a details section about the sketch where I'll put the changelog/usage instructions. <b>Update for smaller build volumes!</b> I've uploaded two parts (base_frame-noborders and center_frame-noborders) which don't have the upper and lower borders. This reduces the biggest part to print from 178,31mm x 152,85mm to 178,31mm x 147,27mm. So it should be printable on many printers which are limited to 150mm along the y-axis (various makerbot clones for example). Use the NoBorders-files only if you're limited by build volume. <b>Update for a 3rd module displaying seconds</b> If you have this thing up and running you might want to add another module to display seconds: https://www.thingiverse.com/thing:3016537 -- Width: 400mm (15.8") Height: 153mm (6.0") Depth: 30mm (1.2") (not including optional feet) It may look confusing at times but I think it's hard to build a clock like this easier and faster. I've used M3x10mm screws (didn't have any other length at home) but anything between 6mm and 10mm should work just fine. <b>Usage instructions can be found at the bottom</b> <b>Notes:</b> - Walls are multiples of 0.6mm, so I suggest printing these using a extrusion width/wall width of 0.6mm/1.2mm. 0.5mm/1.0mm or smaller will increase print times and give you weaker parts. - Before printing all the diffusers I suggest printing the single one and test if it fits nicely. Don't squish the first layer too much on the frame or diffuser files! - After wiring the led strips I strongly suggest running the test-INO before completing everything (rtc, arduino, case, power wiring and so on). - Of course you can use other led strips as long as they aren't much thicker, 10mm wide and you know how to program them - The case will fit an Arduino Pro Mini _OR_ Arduino Nano. No usb breakout as I'm only using pro minis for stuff like this... <b>Requirements:</b> 1 Arduino (Nano or Pro Mini) 1 RTC module (DS3231) 99 WS2812 LEDs, 60 leds/meter, 2x 47pcs, 1x 5pcs 2 button switches, 6mm 1 resistor (300-500ohms) 24 screws (M3, 6-10mm) lots of wires Working Arduino IDE Basic knowledge of what you're doing Willingness to read this and look at the pictures closely Remember: You can open the pictures in a new browser tab to see them full size!