Small Cube Clock

thingiverse

This tiny timepiece revolves around a compact OLED display. It's an effortless build that can be completed in under an hour. To get started, you'll need the following components: 0.96" Inch I2c IIC Serial 128x64 Oled LCD: https://a.co/1urMxg3 From Adafruit, grab these essentials: Breadboard-friendly SPDT Slide Switch - 805 Adafruit Pro Trinket LiIon/LiPoly Backpack Add-On - 2124 Adafruit Pro Trinket - 3V 12MHz - 2010 CR1220 12mm Diameter - 3V Lithium Coin Cell Battery - 380 Adafruit PCF8523 Real Time Clock Assembled Breakout Board - 3295 Lithium Ion Polymer Battery - 3.7v 150mAh - 1317 The total cost comes out to around $50. You'll need to fabricate a small PCB, but using wires as a substitute is also an option since the design is quite minimalist. If you want to add a touch of personality to your timepiece, consider printing an enclosure. I chose not to include a face plate, but it could be a nice finishing touch depending on your personal style. I initially wanted to use the Adafruit OLED display, but unfortunately, they were out of stock at the time. As far as I know, the Adafruit display may not be compatible with this project, but I haven't conducted further research. The code is surprisingly simple. With a 3.7v lithium-ion battery, you can expect around 7 hours of continuous use. With some creative power-saving tricks, it's likely that runtime could be significantly increased.