memento-mori

A reminder to stop wasting time.

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

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

Circuit

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

• https://en.wikipedia.org/wiki/Memento_mori
• Windows 98 loading gif
• https://ezgif.com/