24 LED Light Clock

thingiverse

#24 LED Light Clock This 24 neopixel ring based clock creates a striking halo effect by projecting LEDs backwards onto the wall. The project is available on GitHub at https://github.com/mrvanes/24LEDClock. The ESP-12E module controls the LEDs, with a clever hack used to boost the 3.3V data signal to 5V. Instead of using a level shifter, one 2812 LED chip from a strip was sacrificed and connected in series with a diode to feed the first LED, as described on Hackaday at https://hackaday.com/2017/01/20/cheating-at-5v-ws2812-control-to-use-a-3-3v-data-line/. The colors of the clock can be adjusted through its web interface, defaulting to http://ledclock.local/. However, users should note that this code is hard-coded and may require adjustments if a different level shifting method is used. To enhance the reflection from the back-facing LEDs, the slanted side of the clock's back panel was covered with aluminum foil. The cavity in the backside can accommodate a micro-USB breakout board, available at https://www.bitsandparts.nl/USB-kabels-hubs-and-connectors/Micro-USB-breakout-board/p111796. A video showcasing the project is available on YouTube at https://youtu.be/jOTE2IgfWgo.