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SCI-CALC is a wireless mechanical calculator/macropad by techstacknerd.
Published February 21, 2023

Shaoxiongduan aka techstacknerd published his sci-calc project – a calculator and more:

The sci-calc (I know, really creative name) is a 4-in-1 device, packing a scientific calculator, a macropad/numpad, a handheld game console, and a development board all into one neat and sleek little device – shaoxiongduan.


  • Powered by an ESP32 WROOM32 E
  • Low-pro Kailh v1 choc switches
  • Screen: 256x64 monochrome oled (display driver: SSD1322)
  • Usb to serial chip: CH340C driver download
  • Battery: any lipo battery under 1000mah would be fine
  • SD card support (must be in FAT32 format)


Published on Tue 21st Feb 2023. Featured in KBD #114 (source).

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