The project is a spinning top with an integrated persistence-of-vision ... problems which needed a sacrifice of some processing power to run I2C on some GPIO.

ISEHARA, Kanagawa Prefecture--Every Japanese over a certain age can fondly recall playing with an ”Oyama koma” spinning top during their childhood. But now the simple traditional wooden ...

Nissan Chuzojo is the only dedicated beigoma manufacturer and seller in Kawaguchi, and Ide accepted 400 to 500 tops, some dating back to the Taisho Era (1912-1926), from the company.