The SQFMI Watchy is a fully open-source, hackable ePaper watch based on the ESP32 with a crisp, glare-free 1.54" 200x200 ePaper display which can be programmed using the Arduino IDE and lots of your favourite Arduino/ESP libraries!
U8X8_GP1287AI_256X50_4W_SW_SPI u8x8(/* clock=*/ 0, /* data=*/ 2, /* cs=*/ 14, /* dc=*/ 4, /* reset=*/16);
