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memento-mori

A reminder to stop wasting time.

memento mori - Latin for "remember that you [have to] die".

hourglass

desk

Summary

  • Clock synced via NTP (syncs every 30 minutes)
  • Year remaining calculator
  • Life remaining calculator
  • Configurable UTC offset, birth date, and estimated death date
  • Configured values are saved to file system on each edit
  • Screen navigation with rotary encoder
    • Date/Time (NTP synced)
    • Year remaining
    • Life remaining
    • UTC offset (click to edit)
    • Birth date (click to edit)
    • Estimated death date (click to edit)
    • Force NTP refresh (click to refresh)
  • Small hourglass animation on year and life remaining screens

Images

clock

year remaining

life remaining

setting death date

Circuit

kicad/schematic-small.png

breadboard

Note: I forgot to take a picture of the protoboard circuit I soldered.

Parts List

  • 1 x ESP8266
  • 1 x SSD1306 0.96 inch 128x64 OLED
  • 1 x KY-040 Rotary Encoder
  • 3 x 0.1µF Ceramic Capacitor
  • 1 x Red LED
  • 1 x 470Ω Resistor
  • 1 x SPST Switch
  • 1 x Micro USB Interface Power Adapter Board
  • 4 x M3x10mm screw
  • 4 x M2x10mm screw
  • 4 x M2 nut
  • 4 x M2.5x6+6mm brass standoff
  • 4 x M2.5x8mm screw

References