DIY rechargeable mini-chess-clock using SAMD21 mini board and 0.91" 128x32 OLED display.
demo:
Arduino code: chess-clock.ino
Prototype Projects - experiments on theoretical electronics/electrical designs and actual prototype circuits.
DIY rechargeable mini-chess-clock using SAMD21 mini board and 0.91" 128x32 OLED display.