Customizable Pixel Clock Display with Std. LEDs

thingiverse

Print your own large clock display with e.g 100mm (4") digit height using standard 5mm LEDs. Use the customize feature to adapt to other digit height (grid size) or other LED diameters. You can also adapt spacer dimensions to fit in a picture frame. Optimized for single extruder 3D printer. Print from LED-mount up. Add mounting spacers to fit in frame. Post-Printing Diffusor For more and diffuse light paint inside with silver or white ink. For more diffuse lighting use LEDs with wide angle (straw hat) and/or sand the tip of the LEDs. As diffusor in front you can use a sheet of paper or an opal acryl. Custom Section Controller (Suggestion) To drive the LEDs use an Arduino with multiplexing in software or an integrated circuit MAX7219 (2 pcs) which handles the multiplexing in hardware. For higher power use a driver ULN2003 and/or UDN2981. You can drive the multiplexing direct with an Arduino Uno or Nano for the 3x5-Display. For larger Display you need an Arduino Mega