I’ve honestly felt like it’s been ages since I last took part in a proper competition—probably because the contest themes just don’t quite resonate with me~

But this time, getting to play the role of a “working stiff” has turned out to be pretty fun~ So… why not make one~~

I’ve dubbed it the Magical Labor-Saving Lifesaver.

Its primary function? To gently nudge you every now and then to take a break and avoid overexerting yourself~~

“Time for a quick tea break at 3 o’clock!”

Key Features

• · Still embodies the SRU Rock Universe aesthetic
• · Designed as a compact desktop setup
• · Equipped with a dedicated Mouse Docker for neatly storing your mouse
• · Requires USB power
• · Core functionality: a built‑in clock (which automatically synchronizes time once you’ve pre‑configured your Wi‑Fi network for automatic time setting)
• · Additional features: mode switching
  • · Rest Mode: The default setting, where the device simply serves as a clock
  • · Work Mode: Once activated, a 45‑minute countdown appears in the bottom-right corner of the screen. When the countdown reaches zero, the lower half of the display begins continuously scrolling and flashing a red warning bar—reminding you to take a break right away! At this point, you can pop your mouse into the [Mouse Docker], stretch your legs, grab a drink, head to the restroom, or whatever else you need to do… Then, just press the [Reset Button] to reset the countdown—or hit the [Mode Switch Button] to instantly toggle back to Rest Mode and call it a day!
• · Requires multi‑color printing (for both the Mouse Docker and the SRU decorative plaque)
• · Extremely easy to assemble
• · Color scheme reference:
  • · Main body: Topaz PLA in deep gray
  • · Details: Topaz PLA in silver
• · For the code, please refer to Appendix 1 – Code
• · Wiring diagram details are provided in Appendix 2 – Wiring

• · Non‑printable components list:

  •    · ESP32C3 SUPERMINI microcontroller
  •   · 2‑inch ST7789V3 TFT display
  •   · Two 6x6x4mm square tactile switches (with a button height of approximately 2mm)
  •   · Around 12 female‑to‑female DuPont jumper wires
  •   · Two 4mm x 2mm round magnets
  •   · Four 6mm x 2mm round magnets (optional)