Keeping track of your appointments on Google Calendar is easy enough if you’re holding a phone or sitting at a computer, but sometimes you just want to know what’s going on at a glance. This desk calendar built from [andrei.erdei] does just that with lots of useful LEDs.
The design is simple, using WS2812 LEDs to backlight the numbers to indicate whether they are weekdays, weekends, birthdays, holidays, or any other important date. The number layout is a clever perpetual design allowing the display to easily adapt to the structure of any month, even those that start on Monday.
The design relies on an ESP-01 to communicate with Google Calendar and display relevant data. Everything is packaged in a 3D printed case, with the backlit printed paper model behind smoked acrylic giving a surprisingly professional finish.
If you’re tired of reaching for your phone for the last thing, this design might be just what you’re looking for to keep track of your appointments. Alternatively, you can always go the hard copy route. Video after the break.