Yet another LED digital clock with WS2812B-LEDs...

I needed a simple clock in one room, so I designed one. 24h display to be equipped with WS2812B LED-Strips with 60LEDs/m. Each digit will need 15 LEDs, two on each segment with one LED hidden between to segments. I did a lazy wiring job, just connected all +5V and GND together and to the ESP C3 SuperMini. Data comes from Pin3 and ist wired hour_10 -> hour_1 -> minute_10 -> minute_1 -> 2x dots in the center In total 62 LEDs

The LED-Strip is mounted to the inner wall, the outer wall is the chamfered reflector. Closed up on the back with a backplate, indexed with some grooves and simply glued together. 

On the front individual covers for each segment could be printed in different materials and thicknesses. I included a TestPrint with 0,4, 0,6, 0,8 and 1,0mm thickness for a quick test.

I included my arduino sketch for the ESP32 C3. The program collects the time from a timeserver and re-checks every hour. Between 20:00 to 22:00 the color is changed to red-ish and dimmed for less light during the night. At 08:00 it switches back to white. Color and brigthness can be adjusted in the variables at the top. Feel free to use it or adapt it to your needs.

Update: I had no automated switch for wintertime / summertime in the arduino program. The new sketch fixed this, at least for Germany. Adapt the POXIX variable if you need another timezone

Update: I addressed the timeserver wrong, so it didn't switch to summertime. Is fixed now.

Maybe it would be better to print the housing out of dark material und re-paint it white to minimize the see-through glow. But I was cheap and just printed it in white. This could be printed probably out of anything, I used PETG as I had some laying around.

I included the SolidWorks-Files and Step-Files for easy changes Have fun! Sebastian

Category: Other